

 
The Mental Health Workforce: A Primer 
Elayne J. Heisler 
Analyst in Health Services 
Erin Bagalman 
Analyst in Health Policy 
October 18, 2013 
Congressional Research Service 
7-5700 
www.crs.gov 
R43255 
 
The Mental Health Workforce: A Primer 
 
Summary 
Congress has held hearings and introduced legislation addressing the interrelated topics of the 
quality of mental health care, access to mental health care, and the cost of mental health care. The 
mental health workforce is a key component of each of these topics. The quality of mental health 
care depends partially on the skills of the people providing the care. Access to mental health care 
relies on, among other things, the number of appropriately skilled providers available to provide 
care. The cost of mental health care depends in part on the wages of the people providing care. 
Thus an understanding of the mental health workforce may be helpful in crafting policy and 
conducting oversight. This report aims to provide such an understanding as a foundation for 
further discussion of mental health policy.  
No consensus exists on which provider types make up the mental health workforce. This report 
focuses on the five provider types identified by the Health Resources and Services Administration 
(HRSA) within the Department of Health and Human Services (HHS) as “core mental health 
professionals”: psychiatrists, clinical psychologists, clinical social workers, advanced practice 
psychiatric nurses, and marriage and family therapists. The HRSA definition of the mental health 
workforce is limited to highly trained (e.g., graduate degree) professionals; however, this 
workforce may be defined more broadly elsewhere.  
An understanding of typical licensure requirements and scopes of practice may help policy 
makers determine how to focus policy initiatives aimed at increasing the quality of the mental 
health workforce. Although state licensure requirements vary widely across provider types, the 
scopes of practice converge into provider types that generally can prescribe medication 
(psychiatrists and advanced practice psychiatric nurses) and provider types that generally cannot 
prescribe medication (clinical psychologists, clinical social workers, and marriage and family 
therapists). The core mental health provider types can all provide psychosocial interventions (e.g., 
talk therapy). Administration and interpretation of psychological tests is generally the province of 
clinical psychologists. 
Access to mental health care depends in part on the number of mental health providers overall 
and the number of specific types of providers. Clinical social workers are generally the most 
plentiful core mental health provider type, followed by clinical psychologists, who substantially 
outnumber marriage and family therapists. While less abundant than the three aforementioned 
provider types, psychiatrists outnumber advanced practice psychiatric nurses. Policy makers may 
influence the size of the mental health workforce through a number of health workforce training 
programs. 
Policy makers may assess the relative wages of different provider types, particularly when 
addressing policy areas where the federal government employs mental health providers. 
Psychiatrists are the highest earners, followed by advanced practice psychiatric nurses and 
clinical psychologists. Marriage and family therapists earn more than clinical social workers. The 
relative costs of employing different provider types may be a consideration for federal agencies 
that employ mental health providers.  
 
Congressional Research Service 
The Mental Health Workforce: A Primer 
 
Contents 
Introduction ...................................................................................................................................... 1 
Mental Health Workforce Definition: No Consensus ...................................................................... 2 
Mental Health Workforce Overview ................................................................................................ 3 
Licensure Requirements ............................................................................................................ 3 
Degree ................................................................................................................................. 3 
Supervised Practice ............................................................................................................. 4 
Exam ................................................................................................................................... 4 
Scope of Practice ....................................................................................................................... 4 
Mental Health Workforce Size ......................................................................................................... 9 
Mental Health Workforce Annual Wages....................................................................................... 13 
Concluding Comments .................................................................................................................. 14 
 
Figures 
Figure 1. Workforce Size Estimates, by Mental Health Provider Type ......................................... 10 
 
Tables 
Table 1. Licensure Requirements and Scope of Practice, by Mental Health Provider Type ............ 6 
Table 2. Workforce Size Estimates, by Mental Health Provider Type ........................................... 11 
Table 3. Mean and Median Annual Wages, by Mental Health Provider Type ............................... 13 
 
Appendixes 
Appendix A. Mental Health Professional Shortage Areas (MHPSA) Definition .......................... 16 
Appendix B. Additional Resources ................................................................................................ 20 
 
Contacts 
Author Contact Information........................................................................................................... 21 
Acknowledgments ......................................................................................................................... 21 
 
Congressional Research Service 
The Mental Health Workforce: A Primer 
 
Introduction 
The federal government is involved in mental health care in various ways, including direct 
provision of services, payment for services, and indirect support for services (e.g., grant funding, 
dissemination of best practices, and technical assistance).1 Policy makers have demonstrated 
interest in the federal government’s broad role in mental health care. They have done so primarily 
by holding hearings2 and introducing legislation3 addressing the interrelated topics of quality of 
mental health care, access to mental health care, and the cost of mental health care.  
The mental health workforce is a key component of mental health care quality, access, and cost. 
The quality of mental health care, for example, is influenced by the skills of the people providing 
the care. Access to mental health care depends on the number of appropriately skilled providers 
available to provide care, among other things. The cost of mental health care is affected in part by 
the wages of the people providing care. Thus an understanding of the mental health workforce 
may be helpful in crafting legislation and conducting oversight for overall mental health care 
policy.  
It is important to note that, while the federal government has an interest in the mental health 
workforce, and federal initiatives may affect the training of mental health care providers, for 
instance, most of the regulation of the mental health workforce occurs at the state level. State 
boards determine licensing requirements for mental health professionals, and state laws establish 
their scopes of practice.  
This report begins with a working definition of the mental health workforce and a brief discussion 
of alternative definitions. It then describes three dimensions of the mental health workforce that 
may influence quality of care, access to care, and costs of care: (1) licensure requirements and 
scope of practice for each provider type in the mental health workforce, (2) estimated numbers of 
each provider type in the mental health workforce, and (3) average annual wages for each 
provider type in the mental health workforce. The report then briefly discusses how these 
dimensions of the mental health workforce might inform certain policy discussions. 
                                                 
1 For example, federal agencies such as the Veterans Health Administration (within the Department of Veterans 
Affairs) provide mental health care directly; federal programs such as Medicare pay for mental health care; and federal 
agencies such as the Substance Abuse and Mental Health Services Administration (within the Department of Health 
and Human Services) support mental health care through grant funding, dissemination of best practices, technical 
assistance, and other means. 
2 See, for example, U.S. Congress, Senate Committee on Health, Education, Labor, and Pensions, Assessing the State of 
America’s Mental Health System, 113th Cong., 1st sess., January 24, 2013; U.S. Congress, House Committee on 
Veterans’ Affairs, Honoring the Commitment: Overcoming Barriers to Quality Mental Health Care for Veterans, 113th 
Cong., 1st sess., February 13, 2013; U.S. Congress, Senate Committee on Veterans’ Affairs, VA Mental Health Care: 
Ensuring Timely Access to High-Quality Care, 113th Cong., 1st sess., March 20, 2013; and U.S. Congress, House 
Energy & Commerce Committee, Oversight and Investigations Subcommittee, Examining SAMHSA’s Role in 
Delivering Services to the Severely Mentally Ill, 113th Cong., 1st sess., May 22, 2013. (SAMHSA is the abbreviation for 
the Substance Abuse and Mental Health Services Administration.) 
3 For example, in the 113th Congress, bills have been introduced intended to improve mental health care overall (e.g., 
H.R. 1263, S. 264, and S. 689), and for specific populations such as veterans (e.g., H.R. 1725 and H.R. 2540), school 
children (e.g., H.R. 320 and H.R. 628), and Medicare beneficiaries (e.g., H.R. 794 and S. 562), among others. 
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The Mental Health Workforce: A Primer 
 
Mental Health Workforce Definition: No Consensus 
No consensus exists on which provider types make up the mental health workforce. While some 
define the workforce as a broad range of provider types, others take a more narrow approach. For 
example, the Institute of Medicine (IOM)—a private, nonprofit organization that aims to provide 
evidence-based health policy advice to decision makers, often through congressionally mandated 
studies—has conceptualized the mental health workforce broadly, including primary care 
physicians, nurses, physician assistants, peer support specialists, and family caregivers, among 
others.4 The Substance Abuse and Mental Health Services Administration (SAMHSA)—the 
public health agency within the Department of Health and Human Services (HHS) that leads 
efforts to improve the nation’s mental health—has in recent years defined the mental health 
workforce to include psychiatry, clinical psychology, clinical social work, advanced practice 
psychiatric nursing, marriage and family therapy, and counseling.5 In the past, SAMSHA’s mental 
health workforce definition has also included psychosocial rehabilitation, school psychology, and 
pastoral counseling.6  
The Health Resources and Services Administration (HRSA)—the public health agency within 
HHS with primary responsibility for increasing access to health care (including mental health 
care) for vulnerable populations7—provides a more narrow definition of the mental health 
workforce that is tied to existing federal programs aimed at alleviating provider shortages (e.g., 
Medicare bonus payments and health workforce recruitment programs). Eligibility for such 
programs is determined in part by the designation of a Mental Health Professional Shortage Area 
(MHPSA).8 The MHPSA designation is based on a limited number of core provider types because 
it is intended to identify the most extreme workforce shortages in order to target federal 
investments. For purposes of designating MHPSAs, HRSA identifies “[c]ore mental health 
professionals [as] psychiatrists, clinical psychologists, clinical social workers, [advanced practice 
psychiatric nurses],9 and marriage and family therapists” who meet specified training and 
                                                 
4 IOM (Institute of Medicine). 2012. The Mental Health and Substance Use Workforce for Older Adults: In Whose 
Hands? Washington, DC: The National Academies Press. Hereinafter, IOM Workforce Report. The IOM definition 
also includes all fields in the SAMHSA definitions. 
5 SAMHSA. (2012). Mental Health, United States, 2010. HHS Publication No. (SMA) 12-4681. Rockville, MD: 
SAMHSA. 
6 Substance Abuse and Mental Health Services Administration (SAMHSA). (2006) Mental Health, United States, 2004. 
HHS Publication No. (SMA) 06-4195. Rockville, MD: SAMHSA. The IOM definition includes all fields in the 
SAMHSA definitions. 
7 HRSA, About HRSA, http://www.hrsa.gov/about/. 
8 Health professions shortage areas (HPSAs) are defined in 42 U.S.C. §254e. HRSA developed operational definitions 
of HPSAs and of MHPSAs specifically, available at http://bhpr.hrsa.gov/shortage/hpsas/designationcriteria/
designationcriteria.html and http://bhpr.hrsa.gov/shortage/hpsas/designationcriteria/mentalhealthhpsaoverview.html. 
HRSA designates MHPSAs based on the ratio of mental health providers to population. As of June 2013, HRSA had 
designated 3,744 MHPSAs. See U.S. Department of Health and Human Services, Health Resources and Services 
Administration, “Health Professional Shortage Areas (HPSA) and Medically Underserved Areas/Populations 
(MUA/P),” http://datawarehouse.hrsa.gov/hpsadetail.aspx. For a larger discussion of Health Professional Shortage 
Areas (HPSAs, of which MHPSAs are a specific type), see CRS Report R42029, Physician Supply and the Affordable 
Care Act, by Elayne J. Heisler. 
9 This report uses the term “advanced practice psychiatric nurse,” which is more common than the term “psychiatric 
nurse specialists” used in HRSA’s MHPSA designation criteria. See U.S. Department of Health and Human Services, 
Health Resources and Services Administration, “Mental Health HPSA Designation Overview,” http://bhpr.hrsa.gov/
shortage/hpsas/designationcriteria/mentalhealthhpsaoverview.html. 
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The Mental Health Workforce: A Primer 
 
licensing criteria (as detailed in Appendix A). Notably, this definition is limited to highly trained 
mental health professionals.  
Mental Health Workforce Overview 
In conceptualizing and outlining the mental health workforce, this report relies on the HRSA 
definition of “core mental health professionals,” including psychiatrists, clinical psychologists, 
clinical social workers, advanced practice psychiatric nurses, and marriage and family 
therapists.10 For each of the five core mental health professions, Table 1 summarizes licensure 
requirements (including degree, supervised practice, and exam) and scope of practice; each of 
these terms is explained briefly below. Although the licensure requirements vary widely across 
provider types, the scopes of practice converge into provider types that generally can prescribe 
medication (psychiatrists and advanced practice psychiatric nurses) and provider types that 
generally cannot prescribe medication (clinical psychologists, clinical social workers, and 
marriage and family therapists). All provider types in this report can provide psychosocial 
interventions (e.g., talk therapy). Administration and interpretation of psychological tests is 
generally the province of clinical psychologists.  
Licensure Requirements 
Licensure requirements are the minimum qualifications needed to obtain and maintain a license in 
a specific health profession. These requirements are generally defined by state licensing boards—
independent entities to which state governments have delegated the authority to set licensure 
requirements for specified professions. State licensing boards generally have responsibility for 
verifying that requirements to obtain (and maintain) a license have been met, issuing initial and 
renewed licenses, and tracking licensure violations, among other activities.11  
Table 1 focuses on licensure requirements that are common across many states; it generally does 
not address state variation. Across all provider types, the table addresses licensure for 
independent clinical practice,12 although some disciplines offer licensing at lower practice levels 
or provisional licensing. The table describes requirements to obtain a license and does not include 
requirements to maintain a license (e.g., continuing education).13  
Degree    
The degree noted in Table 1 indicates the minimum level of education generally required to be 
licensed for independent practice.14 For the core mental health professionals outlined in this 
                                                 
10 The HRSA definition is used because of its relevance to federal workforce programs.  
11 See, for example, “FSMB Mission and Goals,” Federation of State Medical Boards at http://www.fsmb.org/
mission.html.  
12 In order for a health professional to “count” for MHPSA designation purposes, the health professional must be 
licensed to practice independently.  
13 As licensure requirements change over time, previously licensed providers may not be subject to new requirements. 
14 Some disciplines offer degrees with the same title in both clinical and non-clinical tracks—for example, a Doctor of 
Philosophy (PhD) in clinical psychology and a PhD in experimental psychology or a Masters of Social Work (MSW) in 
clinical social work and an MSW social work administration—where graduates of the non-clinical track are not 
(continued...) 
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The Mental Health Workforce: A Primer 
 
report, licensure for independent practice requires the completion of graduate education.15 Table 
1 generally does not include degrees that are prerequisites for graduate education (e.g., a 
bachelor’s degree) or degrees beyond those required for licensure (e.g., a doctoral degree 
available in a discipline where a master’s degree is qualifying for licensure for independent 
practice). Notably, in order to enroll in a graduate program to become an advanced practice 
psychiatric nurse, an individual must first be a registered nurse with a bachelor’s degree in 
nursing. The other provider types in this report do not have equivalent requirements for specific 
undergraduate degrees or for prior licensing.  
Table 1 provides a brief description of each graduate degree, including requirements such as a 
field experience or a dissertation. The table also indicates the amount of time typically required to 
complete the degree. In some cases, individuals may complete the degree in less time (e.g., by 
participating in an accelerated program) or more time (e.g., by attending school part-time or 
taking longer to complete a dissertation).  
Supervised Practice 
For most provider types discussed in this report, licensure for independent practice requires a 
period of post-graduate supervised practice. This period of supervised practice is distinct from the 
practicum or internship experiences required to obtain a degree. An example of such supervised 
practice is the residency required for physicians to become psychiatrists.  
Exam 
State licensing boards generally require a passing score on an exam offered by a national body 
(e.g., the American Board of Psychiatry and Neurology), although some state licensing boards 
may offer their own exams in addition to or in lieu of the national exam. In some cases, 
individuals applying for licensure may have a choice of exams that meet the licensure 
requirement. The timing of the exam may vary by state; that is, some states may allow individuals 
to take the exam immediately upon completing the degree requirements, while other states may 
require individuals to have completed a portion (or all) of the supervised practice requirement 
prior to taking the exam.  
Scope of Practice 
The scope of practice for each provider type is established at the state level by state statute, 
regulation, or guidance. Table 1 highlights elements within scope of practice that involve 
diagnosing and treating mental illness. The scope of practice for most provider types includes 
other activities, such as preventive care, case management, and consultation with other providers. 
The scope of practice described in the table reflects what is generally true in most states. For 
example, prescribing medication is included in the scope of practice for advanced practice 
psychiatric nurses, a provider type that comprises both nurse practitioners (allowed to prescribe 
                                                                  
(...continued) 
qualified for clinical licensure. 
15 Licensure generally requires a degree from a school or program that has been accredited; however, a discussion of 
accreditation of educational institutions and programs is beyond the scope of this report. 
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The Mental Health Workforce: A Primer 
 
medication in all states) and clinical nurse specialists (allowed to prescribe medication in only 
some states).  
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Table 1. Licensure Requirements and Scope of Practice, by Mental Health Provider Type 
Licensure Requirements 
Provider 
Typea 
Degreec Supervised 
Practice 
Exam 
 
Scope of Practiceb 
Psychiatrist 
Medical Doctorate (MD) or 
General y requires 3 or 4 years of 
General y requires a passing score on 
• 
Diagnose mental disorders. 
Doctorate of Osteopathic 
post-degree supervised clinical 
the United States Medical Licensing 
Medicine (DO), both of which 
training (residency) in the specialty  Examination (USMLE) for MDs or 
• 
Provide psychosocial treatment 
typical y require 4 years to 
of psychiatry.  
DOs.d DOs can also elect to take the 
for individuals, families, and 
complete (including 2 years of 
Comprehensive Osteopathic Medical 
groups.  
clinical rotations). Coursework 
 
Licensing Examination (COMLEX).  
• 
Can prescribe medication.  
emphasizes physical medicine.  
To become board certified, an exam 
• 
Can diagnose and treat physical 
administered by the American Board of 
conditions as well.  
Psychiatry and Neurology.e 
Clinical 
Doctoral degree in psychology or a  General y requires 3,000 hours of 
General y requires a passing score on 
• 
Diagnose mental disorders.  
Psychologist 
related field, which generally takes 
supervised clinical training, which 
the Examination for Professional 
between 5 and 7 years to complete  take approximately 2 years.f  
Practice in Psychology (EPPP).g  
• 
Provide psychosocial treatment 
and requires academic coursework, 
for individuals, families, and 
clinical training, a dissertation, and 
groups.  
an exam.  
• 
Administer and interpret 
psychological tests.  
• 
Generally cannot prescribe 
medication.h 
Clinical Social 
Master of Social Work (MSW), 
General y requires 3,200–3,400 
General y requires a passing score on 
• 
Diagnose mental disorders.  
Worker 
which typically requires 2 years. 
post-degree supervised clinical 
the Clinical Exam of the Association of 
Coursework emphasizes human 
hours, which take approximately 2  Social Work Boards. 
• 
Provide psychosocial treatment 
and community well-being. 
years.  
for individuals, families, and 
Requires a supervised field 
 
groups.  
practicum (internship).  
• 
Cannot prescribe medication.  
CRS-6 
 
Licensure Requirements 
Provider 
Typea 
Degreec Supervised 
Practice 
Exam 
 
Scope of Practiceb 
Advanced 
Master of Science (MS) in nursing, 
No separate post-graduate clinical 
As of January 1, 2014, will require a 
• 
Diagnose mental disorders.  
Practice 
which generally requires 2 years of  training is required.  
passing score on an exam offered by the 
Psychiatric 
coursework and clinical hours 
American Nurses Credentialing 
• 
Provide psychosocial treatment 
Nurse (APPN)i 
(generally 500 or more).j 
Center.k 
for individuals, families, and 
Coursework and clinical 
groups. 
experience focus on psychiatric 
 
• 
Generally can prescribe 
mental health nursing.  
medication.  
• 
Can diagnose and treat physical 
conditions as well.l  
Marriage and 
Master’s degree (2-3 years), 
General y requires 2 years of post-
General y requires a passing score on 
• 
Diagnose mental disorders. 
Family 
doctoral degree (3-5 years), or 
degree supervised clinical training. 
the Association of Marital and Family 
Therapist (MFT)  postgraduate clinical training (3-4 
Therapy Regulatory Board’s 
• 
Provide psychosocial treatment 
years) in marriage and family 
Examination in Marriage and Family or 
for individuals, families, and 
therapy or a related field.m 
the equivalent California Exam.n  
groups.  
Coursework emphasizes the 
• 
Cannot prescribe medication. 
individual’s mental health in the 
context of interpersonal 
relationships (e.g., family and 
peers). Generally requires a field 
practicum or internship. 
Source: U.S. Department of Labor, Bureau of Labor Statistics; U.S. Department of Health and Human Services, Health Resources and Services Administration (HRSA); 
and various professional associations. For more information on the professional organizations for each of five health professions, see Appendix B.  
Notes: The degree, supervised practice, and exam indicated in the table are those generally required to obtain a license for independent practice. Licensure 
requirements (defined by state boards) and scope of practice (defined by state laws) vary by state. Degree requirements may vary by program. In all cases, the 
information provided in the table reflects what is generally true in most states and programs. Elaborating the exceptions is beyond the scope of this report. 
a.  The provider type may not correspond to the name of the license (which may vary by state for some provider types). The provider types correspond to HRSA’s 
“core mental health professionals” (with the exception of advanced practice psychiatric nurses, which HRSA cal s “psychiatric nurse specialists”).  
b.  The table focuses on the elements within scope of practice that involve diagnosing and treating mental illness. The scope of practice for most provider types includes 
other activities, such as preventive care, case management, and consultation with other providers.  
c.  The table focuses on graduate degree requirements (i.e., post-baccalaureate training requirements).  
d.  Graduates of certain foreign medical schools may also be eligible to take the USMLE.  
CRS-7 
 
e.  The term “board certified physician” means one who has completed the required training in a specific specialty and has passed an examination that assesses the basic 
knowledge and skills in a particular area (in this case psychiatry or neurology). Board certification is not required to practice as a psychiatrist but may be a condition 
of employment for some employers.  
f. 
General y, states require that at least 1,500 hours (of the 3,000 hours required) be a post-doctoral experience. See Association of State and Provincial Psychology 
Boards, “Entry Requirements for the Professional Practice of Psychology, 2008,” http://www.asppb.net/files/public/09_Entry_Requirements.pdf.  
g.  A board certified psychologist is one who has completed training in a specific specialty and has passed an examination that assesses the basic knowledge and skills in 
that particular area. As in psychiatry, board certification is not required, but some employers may require it. Board certification is conducted by the American Board 
of Professional Psychology, see http://www.abpp.org/.  
h.  In New Mexico, Louisiana, Guam, the U.S. Department of Defense (DOD) system, the Indian Health Service, and the U.S. Public Health Service, licensed 
psychologists who obtain additional training can apply to have prescription writing privileges as part of their scope of practice. See Robert E. McGrath, “Prescriptive 
Authority for Psychologists,” Annual Review of Clinical Psychology, vol. 6 (April 27, 2010), pp. 21-47.  
i. 
This includes mental health/psychiatric nurse practitioners and clinical nurse specialists. This report uses the term “advanced practice psychiatric nurse,” which is 
more common than the term “psychiatric nurse specialists” used by HRSA. The American Psychiatric Nurses Association (APNA) aims to bring uniformity to the 
requirements for advanced practice psychiatric nurses by 2015, in accordance with the “Consensus Model for APRN Regulation: Licensure, Accreditation, 
Certification & Education;” see American Psychiatric Nurses Association, APRN Consensus Model, http://www.apna.org/i4a/pages/index.cfm?pageID=4387.  
j. 
The nursing profession is moving towards requiring doctoral degrees in these fields, which requires an additional two years of training. See American Psychiatric 
Nurses Association, “What is an Advanced Practice Psychiatric Nurse?” http://www.apna.org/i4a/pages/index.cfm?pageID=3866.  
k.  Until January 1, 2014, the American Nurses Credentialing Center offers four different exams: two for Nurse Practitioners (in Adult or Family Psychiatry) and two 
for Clinical Nurse Specialists (in Adult or Child/Adolescent Psychiatric Nursing). In order to become an advanced practice psychiatric nurse, an individual must first 
be a registered nurse, which general y requires a passing score on the National Council Licensure Examination-RN (NCLEX-RN). See National Council of State 
Boards of Nursing, NCLEX Examinations, https://www.ncsbn.org/nclex.htm.  
l. 
Some states may require that advanced practice psychiatric nurses be supervised by physicians.  
m.  Related fields may include psychology, social work, nursing, education, or pastoral counseling. See American Association for Marriage and Family Therapy, About 
AAMFT, Qualifications and FAQs, http://www.aamft.org/imis15/content/about_aamft/Qualifications.aspx.  
n.  Marriage and Family Therapists (MFTs) who practice in California (representing more than half of all MFTs), must pass a separate California licensing exam.  
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The Mental Health Workforce: A Primer 
 
Mental Health Workforce Size 
Access to mental health care depends in part on the overall number of practicing mental health 
providers and the number of specific types of providers.16 As of June 2013, HRSA had designated 
3,744 Mental Health Professional Shortage Areas (MHPSAs), including one or more in each 
state, the District of Columbia, and each of the territories.17 Although HRSA designates MHPSAs, 
it does not collect data on the size of the mental health workforce nationally.18 Figure 1 and 
Table 2 both present workforce size estimates for each core mental health provider type from  
•  The Mental Health and Substance Use Workforce for Older Adults: In Whose 
Hands? by the Institute of Medicine (IOM);19  
•  Mental Health, United States, 2010 by the Substance Abuse and Mental Health 
Services Administration (SAMHSA);20 and 
•  other sources, including professional associations and licensing boards. 
Although the number of mental health providers in each profession varies across the three 
sources, each source yields the same order of provider types from most plentiful to least plentiful, 
as illustrated in Figure 1. According to each data source, clinical social workers are estimated to 
be the most plentiful, followed by clinical psychologists, who substantially outnumber marriage 
and family therapists. While less abundant than the three aforementioned provider types, 
psychiatrists outnumber advanced practice psychiatric nurses.  
                                                 
16 One of the primary challenges in assessing the overall size of the mental health workforce is that there is no uniform 
definition; see “Mental Health Workforce Definition.” Using the HRSA definition of “core mental health 
professionals,” a relatively narrow definition, yields a smaller estimate than would be found using a somewhat broader 
definition such as the one used by SAMSHA or a much broader definition such as the one used by the IOM. 
17 Health Resources and Services Administration, Data Warehouse, Health Professional Shortage Areas (HPSA) and 
Medically Underserved Areas / Populations (MUA/P), http://datawarehouse.hrsa.gov/hpsadetail.aspx.  
18 HRSA uses a variety of data sources when designating MHPSAs. Individual states apply to HRSA for MHPSA 
designations. When doing so states must provide data on the ratio of health practitioners to population. States use a 
variety of sources when providing these data including professional association data, state licensing data, and state 
specific survey data. Source: E-mail from HHS Office of the Assistant Secretary for Legislation, August 1, 2013. 
19 Institute of Medicine. (2012). The Mental Health and Substance Use Workforce for Older Adults: In Whose Hands? 
Washington, DC: The National Academies Press. IOM is a private, nonprofit institution established in 1970 under the 
congressional charter of the National Academy of Sciences to provide health policy advice. See National Academies, 
Institute of Medicine, About the IOM, http://www.iom.edu/About-IOM.aspx. For information about the health 
professions included in the IOM’s definition of the mental health workforce, see “Mental Health Workforce 
Definition.” 
20 Substance Abuse and Mental Health Services Administration (SAMHSA). (2012). Mental Health, United States, 
2010. HHS Publication No. (SMA) 12-4681. Rockville, MD: SAMHSA. SAMHSA is a public health agency 
established within HHS by Congress in 1992 to advance mental health in the United States. See SAMHSA, About Us, 
http://beta.samhsa.gov/about-us. For information about the health professions included in the SAMSHA’s definition of 
the mental health workforce, see “Mental Health Workforce Definition: No Consensus.” 
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Figure 1. Workforce Size Estimates, by Mental Health Provider Type 
Clinical Social Worker
115,390
Clinical Psychologist
100,850
IOM
33,990
Marriage and Family Therapist (MFT)
23,140
Psychiatrist
19,126
Advanced Practice Psychiatric Nurse (APPN)
244,900
92,227
SAMHSA
48,666
24,758
9,742
185,723
134,000
Other
58,007
50,981
9,780
 
Source: CRS analysis of data from Institute of Medicine, The Mental Health and Substance use Workforce for Older 
Adults: In Whose Hands? (Washington, DC: National Academies Press, 2012); Substance Abuse and Mental Health 
Services Administration, Mental Health, United States, 2010, Rockville, MD, 2010; and other sources (i.e., 
professional associations and licensing boards).  
Variation in the numbers from different sources reflects some of the difficulty in determining the 
size of the workforce—and therefore also in determining the adequacy of the workforce to 
provide access to mental health care. Along with workforce size estimates for each provider type, 
Table 2 presents the original data sources (e.g., the IOM report relies primarily on data from the 
Bureau of Labor Statistics within the U.S. Department of Labor). Limitations of each original 
data source may lead to overstating or understating the number of providers (e.g., the Bureau of 
Labor Statistics data excludes self-employed workers). Major limitations are noted in Table 2. 
Even looking at the numbers in relative terms, the limitations of the original sources complicate 
comparisons across professions. For example, the Bureau of Labor Statistics figures in the IOM 
report include school psychologists and exclude school social workers, limiting their 
comparability.  
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Table 2. Workforce Size Estimates, by Mental Health Provider Type 
Provider 
Other Sources  
Type 
Institute of Medicine Reporta 
Mental Health, United States, 2010b 
(Membership and Licensing) 
Psychiatrist 
23,140 
BLS, May 2011, estimate of 
24,758 
American Psychiatric Association, 
50,981 
American Medical Association, 
psychiatrists (SOC 29-1066). 
2006, membership. Excludes 
2012, Board Certified Psychiatrists. 
Excludes the self-employed. 
students, residents, fellows, 
Includes psychiatrists who are not 
international members, and 
practicing (e.g., researchers or 
inactive members. Not all 
retired).  
psychiatrists are members.  
Clinical 
100,850 
BLS, May 2011, estimate of clinical, 
92,227 American 
Psychological 
134,000 American 
Psychological 
Psychologist 
counseling, and school 
Association, 2006, Member 
Association, 2013, members. 
psychologists (SOC 19-3031). 
Directory. Not all psychologists 
Includes members who are not 
Excludes the self-employed. 
are members.  
mental health providers (e.g., 
experimental psychologists). 
 
Excludes non-members.  
Clinical 
115,390 
BLS, May 2011, estimate of mental 
244,900 
Calculated as 79% of the number 
185,723 
Association of Social Work 
Social 
health and substance abuse social 
of licensed social workers (per the 
Boards, Inc., 2011, sum of state-
Worker 
workers (SOC 21-1023). Excludes 
Association of Social Work 
level numbers of MSWs with 
the self-employed.  
Boards), the estimated percent 
experience. May double-count 
eligible to hold clinical licenses.  
those licensed in multiple states. 
Excludes those from states that did 
not report.  
Advanced 
19,126 
National Sample Survey of 
9,742 
American Nurses Credentialing 
9,780 
American Nurses Credentialing 
Practice 
Registered Nurses, 2008, estimates 
Center, 2006, Advanced Practice 
Center, 2008, sum of state-level 
Psychiatric 
of psychiatric advanced practice 
Psychiatric Nurses. 
numbers of APPNs.c May double-
Nurse 
registered nurses.  
count those licensed in multiple 
(APPN) 
states. 
Marriage 
33,990 
BLS, May 2011, estimate of 
48,666 
American Association for Marriage 
58,007 
American Association for Marriage 
and Family 
marriage and family therapists 
and Family Therapy, 2006, 
and Family Therapy, 2013, sum of 
Therapist 
(SOC 21-1013). Excludes the self-
Membership Database of clinical 
state-level numbers of fully 
(MFT) 
employed.  
members. 
licensed MFTs from state boards. 
May double-count those licensed in 
multiple states. Excludes those 
with provisional licenses.  
Notes: BLS = Bureau of Labor Statistics; SOC = Standard Occupational Classification (codes used by the Bureau of Labor Statistics). 
CRS-11 
 
a.  From Institute of Medicine. (2012). The Mental Health and Substance Use Workforce for Older Adults: In Whose Hands? Washington, DC: The National Academies Press. 
See Table 3-2 “Estimated Number of Mental Health/Substance Use (MH/SU) Specialists, 2011.” For al  provider types other than advanced practice psychiatric 
nurses, IOM used data from the Bureau of Labor Statistics (BLS), Occupational Employment Statistics, Occupational Employment and Wages, May 2011. BLS 
estimates are based on a survey that excludes self-employed workers.  
b.  From Substance Abuse and Mental Health Services Administration. (2012). Mental Health, United States, 2010. HHS Publication No. (SMA) 12-4681. Rockville, MD: 
Substance Abuse and Mental Health Services Administration. See Table 45 “Number and percentage of clinical y trained mental health personnel, by discipline and 
distribution, by sex, age, and Hispanic origin and race, United States, selected years.”  
c.  Cited in Hanrahan et al. (2010), “Health Care Reform and the Federal Transformation Initiatives: Capitalizing on the Potential of Advanced Practice Psychiatric 
Nurses,” Policy, Politics, & Nursing Practice 11(3): 235-244.  
CRS-12 
The Mental Health Workforce: A Primer 
 
Mental Health Workforce Annual Wages 
Just as access to mental health care providers depends partially on the size of the mental health 
workforce, the cost of mental health care depends partly on the wages paid to mental health 
providers. Table 3 presents mean and median annual wages from the Bureau of Labor Statistics 
(BLS). These wage data are widely used because of their large sample size, broad geographic 
reach, and the comparable methodology used to collect data across occupations.21 Information 
from BLS is likely to either over- or under-state wages for some mental health providers; the data 
are based on a survey that excludes self-employed workers (i.e., those in private practice), who 
may have different incomes. For example, for both clinical psychologists and clinical social 
workers, the categories used by the BLS include individuals who may earn substantially less than 
those who meet the HRSA definition of the provider type. The wage estimates for clinical 
psychologists are based on a category that includes school psychologists, who do not have to 
meet the same licensure requirements as HRSA-defined clinical psychologists and thus might 
receive lower wages. Similarly, the wage estimates for clinical social workers are based on a 
category that includes individuals who are not licensed for independent practice and who also 
might earn less.  
Despite their limitations, the BLS data are able to illuminate the relative wages of each provider 
type as outlined in Table 3. Psychiatrists are the relative highest earners, followed by advanced 
practice psychiatric nurses and clinical psychologists. Marriage and family therapists generally 
earn more than clinical social workers. 
Table 3. Mean and Median Annual Wages, by Mental Health Provider Type 
Annual Wage 
Provider Type 
Mean Median 
BLS Category Useda 
Psychiatrist 
$177,520 
$173,330 
Psychiatrists (SOC 29-1066).  
Clinical Psychologist 
$72,220 
$67,650 
Clinical, Counseling, and School Psychologists (SOC 
19-3031).  
Clinical Social Worker 
$43,340 
$39,980 
Mental Health and Substance Abuse Social Workers 
(SOC 21-1023). No distinction is made between 
levels of education or licensure.  
Advanced Practice Psychiatric 
$91,450 
$89,960 
Nurse Practitioners (SOC 29-1171). No estimate is 
Nurse (APPN) 
provided for the psychiatric/mental health specialty. 
Marriage and Family 
$49,270 
$46,670 
Marriage and Family Therapists (SOC 21-1013).  
Therapist (MFT) 
Source: CRS summary of data from U.S. Department of Labor, Bureau of Labor Statistics, Occupational 
Employment Statistics, May 2012 Occupation Profiles, http://www.bls.gov/oes/current/oes_stru.htm. 
a.  BLS wage estimates do not include self-employed workers. SOC = Standard Occupational Classification 
(codes used by the Bureau of Labor Statistics). 
                                                 
21 For example, the BLS Handbook of Methods, Chapter 3: Occupational Employment Statistics discusses the uses of 
the OES data that include federal programs, state workforce agencies, and the Department of Labor Foreign Labor 
Certification Program, see http://www.bls.gov/opub/hom/homch3.htm#uses.  
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The Mental Health Workforce: A Primer 
 
Concluding Comments 
Understanding the mental health workforce may help policy makers address a range of potential 
policy issues related to mental health care, including its quality, access, and cost.  
An understanding of typical licensure requirements and scopes of practice may help policy 
makers determine how to direct federal policy initiatives focused on enhancing the quality of 
mental health care such as those related to training mental health providers. If, for example, 
training new providers quickly is a priority, initiatives may focus on training additional providers 
who can be licensed with a master’s degree, rather than a doctoral degree. Initiatives may focus 
on training providers who can prescribe medication if the need is greater for medication than for 
psychosocial interventions. Going beyond the provider types discussed in this report, if a priority 
is to expand the breadth of the mental health workforce, policy makers might also consider 
federal training directed toward initiatives that focus on paraprofessionals who do not require 
extensive training or toward primary care professionals who do not specialize in mental health but 
may provide care for individuals with mental illness. Increasing the breadth of the mental health 
workforce may also increase its overall size. 
Another way policy makers may influence the size of the mental health workforce (and thus 
access to mental health services) is through the provision or expansion of federal programs.22 For 
example, the federal government may provide grants to establish or expand training programs for 
mental health providers. The federal government may also provide incentives such as loan 
repayment or loan forgiveness to encourage individuals to enter mental health occupations, which 
are projected to grow faster than the overall workforce.23 Policy makers may consider strategies 
to direct people into these high growth fields as part of larger labor force policy considerations. 
Initiatives may be targeted to certain provider types or to certain locations (e.g., MHPSAs).  
Policy makers may also wish to consider the relative wages of different provider types, 
particularly when addressing domains within which the federal government employs mental 
health providers. For instance, agencies which employ these mental health professionals include 
the Department of Defense, the Veterans Health Administration (within the Department of 
Veterans Affairs), the Bureau of Prisons (within the Department of Justice), and the Indian Health 
Service (within HHS), among other agencies. The federal government is the largest employer of 
some provider types, such as clinical psychologists and social workers. 24 As such, the cost of 
                                                 
22 CRS Report R42029, Physician Supply and the Affordable Care Act, by Elayne J. Heisler, discusses the interplay 
between the demand for health services and the supply of a specific type of providers: physicians. Some of the 
discussion and some of the policy levers used to affect physician supply could also be used to affect the mental health 
workforce. For a description of health workforce programs, see CRS Report R41278, Public Health, Workforce, 
Quality, and Related Provisions in ACA: Summary and Timeline, coordinated by C. Stephen Redhead and Elayne J. 
Heisler; CRS Report R42029, Physician Supply and the Affordable Care Act, by Elayne J. Heisler; and U.S. 
Government Accountability Office (GAO), Health Care Workforce: Federally Funded Training Programs in Fiscal 
Year 2012, 13-709R, August 15, 2013, http://www.gao.gov/products/GAO-13-709R.  
23 BLS projects the growth rate between 2010 and 2020 to be 14% among all occupations, 26% among health care 
practitioners, and higher within some of the mental health professions (e.g., 41% among marriage and family therapists 
and 31% among mental health and substance abuse social workers). Department of Labor, Bureau of Labor Statistics, 
“Employment Projections, Employment by Occupation,” February 1, 2012, http://www.bls.gov/emp/ep_table_102.htm. 
24 See, for example, U.S. Congress, House Committee on Veterans’ Affairs, Subcommittee on Health, Human 
Resources Challenges with the Veterans Health Administration, committee print, prepared by Randy Phelps, Deputy 
Executive Director for Professional Practice of the American Psychological Association, 110th Cong., May 22, 2008, 
http://veterans.house.gov/witness-testimony/randy-phelps-phd; psychologist recruiting information from the Federal 
(continued...) 
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The Mental Health Workforce: A Primer 
 
employing different provider types—as well as their scopes of practice—may be a consideration 
not only in determining staffing priorities, but also in attempts to recruit and retain mental health 
providers (e.g., by offering competitive compensation). 
                                                                  
(...continued) 
Bureau of Prisons at http://www.bop.gov/jobs/hsd/psychology_services.jspl; and social work recruiting information 
from the Department of Veterans Affairs at http://www.vacareers.va.gov/resources/downloads/MHEI_Brochure.pdf. 
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Appendix A. Mental Health Professional Shortage 
Areas (MHPSA) Definition 
This appendix excerpts the specific criteria that the Health Resources and Services Administration 
(HRSA) uses to designate mental health professional shortage areas (MHPSAs). MHPSAs can be 
geographic areas, population groups, or facilities. This designation is used to determine eligibility 
for federal programs such as Medicare bonus payments and health professions recruitment 
programs.25 HRSA bases the MHPSA designation on the availability (relative to population size) 
of “core mental health professionals,” which include “psychiatrists, clinical psychologists, 
clinical social workers, psychiatric nurse specialists, and marriage and family therapists.” The 
criteria for designating a MHPSA are as follows:26  
1. Geographic Areas must:  
•  Be a rational area for the delivery of mental health services 
•  Meet one of the following conditions:  
•  A population-to-core-mental-health-professional ratio greater than or 
equal to 6,000:1 and a population-to-psychiatrist ratio greater than or 
equal to 20,000:1 or 
•  A population-to-core professional ratio greater than or equal to 9,000:1 
or 
•  A population-to-psychiatrist ratio greater than or equal to 30,000:1 
•  Have unusually high needs for mental health services, and  
•  A population-to-core-mental-health-professional ratio greater than or 
equal to 4,500:1 and a population-to-psychiatrist ratio greater than or 
equal to 15,000:1, or 
•  A population-to-core-professional ratio greater than or equal to 6,000:1, 
or 
•  A population-to-psychiatrist ratio greater than or equal to 20,000:1 
•  Mental health professionals in contiguous areas are overutilized, excessively 
distant or inaccessible to residents of the area under consideration. 
2. Population Groups must:  
•  Face access barriers that prevent the population group from use of the area’s 
mental health providers 
•  Meet one of the following criteria:  
                                                 
25 For more information on the general Health Professional Shortage Area (HPSA) designation, see CRS Report 
R42433, Federal Health Centers, by Elayne J. Heisler.  
26 See U.S. Department of Health and Human Services, Health Resources and Services Administration, “Mental Health 
HPSA Designation Overview,” http://bhpr.hrsa.gov/shortage/hpsas/designationcriteria/mentalhealthhpsaoverview.html. 
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The Mental Health Workforce: A Primer 
 
•  Have a ratio of the number of persons in the population group to the 
number of FTE core mental health professionals serving the population 
group greater than or equal to 4,500:1 and the ratio of the number of 
persons in the population group to the number of FTE psychiatrists 
serving the population group greater than or equal to 15,000:1; or 
•  Have a ratio of the number of persons in the population group to the 
number of FTE core mental health professionals serving the population 
group greater than or equal to 6,000:1; or 
•  Have a ratio of the number of persons in the population group to the 
number of FTE psychiatrists serving the population group are greater 
than or equal to 20,000:1 
3. Facilities must: 
•  Be maximum or medium security facilities 
•  Be either Federal and/or State correctional institutions, State/County mental 
hospitals or public and/or non-profit mental health facilities 
•  Federal or State Correctional facilities must:  
•  Have at least 250 inmates and 
•  Have a ratio of the number of internees per year to the number of FTE 
[full-time equivalent] psychiatrists serving the institution of at least 
2,000:1 
•  State and county mental health hospitals must:  
•  Have an average daily inpatient amount of at least 100; and 
•  The number of workload units per FTE psychiatrists available at the 
hospital exceeds 300, where workload units are calculated using the 
following formula: Total workload units = average daily inpatient census 
+ 2 x (number of inpatient admissions per year) + 0.5 x (number of 
admissions to day care and outpatient services per year). 
•  Community mental health centers and other public and non-profit facilities must:  
•  Be providing (or responsible for providing) mental health services to an 
area or population group designated as having a shortage of mental 
health professionals and 
•  Have insufficient capacity to meet the psychiatric needs of the area or 
population group 
B. Methodology.27 
 In determining whether an area meets the criteria... the following methodology will be used: 
                                                 
27 U.S. Department of Health and Human Services, Health Resources and Services Administration, “Mental Health 
HPSA Designation Criteria,” http://bhpr.hrsa.gov/shortage/hpsas/designationcriteria/mentalhealthhpsacriteria.html. 
 
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The Mental Health Workforce: A Primer 
 
1. Rational Areas for the Delivery of Mental Health Services. 
(a) The following areas will be considered rational areas for the delivery of mental health 
services: 
(i) An established mental health catchment area, as designated in the State Mental Health 
Plan under the general criteria set forth in section 238 of the Community Mental Health 
Centers Act. 
(ii) A portion of an established mental health catchment area whose population, because of 
topography, market and/or transportation patterns or other factors, has limited access to 
mental health resources in the rest of the catchment area, as measured generally by a travel 
time of greater than 40 minutes to these resources. 
(iii) A county or metropolitan area which contains more than one mental health catchment 
area, where data are unavailable by individual catchment area. 
(b) The following distances will be used as guidelines in determining distances corresponding 
to 40 minutes travel time: 
(i) Under normal conditions with primary roads available: 25 miles. 
(ii) In mountainous terrain or in areas with only secondary roads available: 20 miles. 
(iii) In flat terrain or in areas connected by interstate highways: 30 miles. 
Within inner portions of metropolitan areas, information on the public transportation system 
will be used to determine the distance corresponding to 40 minutes travel time. 
2. Population Count. 
The population count used will be the total permanent resident civilian population of the 
area, excluding inmates of institutions. 
3. Counting of mental health professionals. 
(a) All non-Federal core mental health professionals (as defined below) providing mental 
health patient care (direct or other, including consultation and supervision) in ambulatory or 
other short-term care settings to residents of the area will be counted. Data on each type of 
core professional should be presented separately, in terms of the number of full-time-
equivalent (FTE) practitioners of each type represented. 
(b) Definitions: 
(i) Core mental health professionals or core professionals includes those psychiatrists, 
clinical psychologists, clinical social workers, psychiatric nurse specialists, and marriage 
and family therapists who meet the definitions below. 
(ii) Psychiatrist means a doctor of medicine (M.D.) or doctor of osteopathy (D.O.) who 
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The Mental Health Workforce: A Primer 
 
(A) Is certified as a psychiatrist or child psychiatrist by the American Medical Specialties 
Board of Psychiatry and Neurology or by the American Osteopathic Board of Neurology and 
Psychiatry, or, if not certified, is “board-eligible” (i.e., has successfully completed an 
accredited program of graduate medical or osteopathic education in psychiatry or child 
psychiatry); and 
(B) Practices patient care psychiatry or child psychiatry, and is licensed to do so, if required 
by the State of practice. 
(iii) Clinical psychologist means an individual (normally with a doctorate in psychology) who 
is practicing as a clinical or counseling psychologist and is licensed or certified to do so by 
the State of practice; or, if licensure or certification is not required in the State of practice, an 
individual with a doctorate in psychology and two years of supervised clinical or counseling 
experience. (School psychologists are not included.) 
Clinical social worker means an individual who— 
(A) Is certified as a clinical social worker by the American Board of Examiners in Clinical 
Social Work, or is listed on the National Association of Social Workers’ Clinical Register, or 
has a master’s degree in social work and two years of supervised clinical experience; and 
(B) Is licensed to practice as a social worker, if required by the State of practice. 
(v) Psychiatric nurse specialist means a registered nurse (R.N.) who— 
(A) Is certified by the American Nurses Association as a psychiatric and mental health 
clinical nurse specialist, or has a master’s degree in nursing with a specialization in 
psychiatric/mental health and two years of supervised clinical experience; and 
(B) Is licensed to practice as a psychiatric or mental health nurse specialist, if required by the 
State of practice. 
(vi) Marriage and family therapist means an individual (normally with a master’s or doctoral 
degree in marital and family therapy and at least two years of supervised clinical experience) 
who is practicing as a marital and family therapist and is licensed or certified to do so by the 
State of practice; or, if licensure or certification is not required by the State of practice, is 
eligible for clinical membership in the American Association for Marriage and Family 
Therapy. 
 
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Appendix B. Additional Resources 
Below are resources for additional information about each mental health provider type, including 
national associations of state boards, professional associations, accrediting organizations for 
educational programs, and other relevant organizations. In some cases, a single organization may 
serve multiple roles (e.g., a professional association may also accredit educational programs).  
Psychiatrists 
American Academy of Addiction Psychiatry (AAAP): http://www2.aaap.org 
American Academy of Child & Adolescent Psychiatry (AACAP): http://www.aacap.org 
American Academy of Clinical Psychiatrists (AACP): https://www.aacp.com  
American Board of Medical Specialties (ABMS): http://www.abms.org 
American Board of Psychiatry and Neurology (ABPN): http://www.abpn.com  
American Psychiatric Association (APA): http://www.psych.org  
National Board of Osteopathic Examiners: http://www.nbome.org  
Psychologists 
American Psychological Association (APA): http://www.apa.org  
Association of State and Provincial Psychology Boards (ASPPB): http://www.asppb.net  
Social Workers   
Association of Social Work Boards (ASWB): http://www.aswb.org  
Council on Social Work Education (CSWE): http://www.cswe.org 
National Association of Social Workers (NASW): http://www.socialworkers.org 
Social Work Policy Institute (SWPI): http://www.socialworkpolicy.org 
Advanced Practice Psychiatric Nurses 
American Academy of Nurse Practitioners (AANP): http://www.aanp.org  
American Nurses Credentialing Center (ANCC): http://www.nursecredentialing.org  
American Psychiatric Nurses Association (APNA): http://www.apna.org  
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National Association of Clinical Nurse Specialists (NACNS): http://www.nacns.org  
National Council of State Boards of Nursing (NCSBN): https://www.ncsbn.org  
Marriage and Family Therapists 
American Association for Marriage and Family Therapy (AAMFT): http://www.aamft.org 
Association of Marital and Family Therapy Regulatory Boards (AMFTRB): 
http://www.amftrb.org 
 
 
Author Contact Information 
 
Elayne J. Heisler 
  Erin Bagalman 
Analyst in Health Services 
Analyst in Health Policy 
eheisler@crs.loc.gov, 7-4453 
ebagalman@crs.loc.gov, 7-5345 
 
 
Acknowledgments 
The authors wish to acknowledge the work of Jimmylee Gutierrez (who conducted background research for 
this report during his internship with CRS). 
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