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NAICS Code· 621420

NAICS 621420: Outpatient Mental Health and Substance Abuse Centers

This industry comprises establishments with medical staff primarily engaged in providing outpatient services related to the diagnosis and treatment of mental health disorders and alcohol and other substance abuse. These establishments generally treat patients who do not require inpatient treatment. They may provide a counseling staff and information regarding a wide range of mental health and substance abuse issues and/or refer patients to more extensive treatment programs, if necessary. Illustrative Examples: Outpatient alcoholism treatment centers and clinics (except hospitals) Outpatient mental health centers and clinics (except hospitals) Outpatient detoxification centers and clinics (except hospitals) Outpatient substance abuse treatment centers and clinics (except hospitals) Outpatient drug addiction treatment centers and clinics (except hospitals) Cross-References.Show more

NAICS 621420 – Outpatient Mental Health and Substance Abuse Centers encompasses the provision of ambulatory behavioral health services, including individual and group psychotherapy, crisis intervention, substance use disorder counseling, psychiatric evaluation, and co-occurring disorder treatment delivered in non-residential settings. These services are critical to federal health and human service missions, supporting veterans, active-duty personnel, federal employees, and beneficiaries of the Indian Health Service and Medicaid programs.

94
Active Contracts
$34.0M
Total Obligations (12mo)
259
Awarded Contracts (12mo)
73
Contractors Awarded (12mo)
1
Median Bidders per Award
-67.2%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 621420.

AI Industry Description

NAICS 621420 – Outpatient Mental Health and Substance Abuse Centers encompasses the provision of ambulatory behavioral health services, including individual and group psychotherapy, crisis intervention, substance use disorder counseling, psychiatric evaluation, and co-occurring disorder treatment de...

NAICS 621420 – Outpatient Mental Health and Substance Abuse Centers encompasses the provision of ambulatory behavioral health services, including individual and group psychotherapy, crisis intervention, substance use disorder counseling, psychiatric evaluation, and co-occurring disorder treatment delivered in non-residential settings. These services are critical to federal health and human service missions, supporting veterans, active-duty personnel, federal employees, and beneficiaries of the Indian Health Service and Medicaid programs. The sector operates within a complex regulatory framework governed by SAMHSA guidelines, HIPAA compliance, and accreditation standards such as CARF or JCAHO. Contractors in this space must demonstrate clinical expertise, workforce credentialing, and interoperability with electronic health record systems to meet federal contracting requirements. No contractor data is available to identify leading primes or small businesses operating in this sector. However, typical participants include community mental health centers, nonprofit behavioral health networks, and specialized clinical service providers with experience in federal grant-funded programs. No agency data is available to specify primary buyers. Nonetheless, demand is likely driven by the Department of Veterans Affairs, the Substance Abuse and Mental Health Services Administration, the Department of Health and Human Services, and the Department of Defense through its Military Health System and TRICARE network, all of which prioritize accessible, evidence-based outpatient behavioral health care. The competitive landscape is characterized by high regulatory barriers and a reliance on skilled clinical staff, creating opportunities for specialized providers with proven track records in federal compliance and telehealth delivery. Growing emphasis on integrated care models and workforce expansion in underserved areas suggests increasing procurement activity in rural and veteran-focused regions.

Top Contractors

Companies with the highest total award value under NAICS 621420, ranked by dollars won.

Competition

How many companies historically bid on federal awards in NAICS 621420, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 6,094 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

61%

Share of reported awards with one bidder

10+ Bidder Awards

2%

Share of reported awards with 10+ bidders

Reported Awards

0

69% of 8,809 total awards

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
621420This Code
Outpatient Mental Health and Substance Abuse Centers
Usually Single-Bid161%
6,09469% of 8,809
62142NAICS Industry
Usually Single-Bid161%
6,09469% of 8,809
6214Industry Group
Outpatient Care Centers
Usually Single-Bid152%
29,50284% of 35,264
621Subsector
Usually Single-Bid165%
305,28684% of 361,938
62Sector
Health Care and Social Assistance
Usually Single-Bid171%
550,37684% of 657,210

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Outpatient Mental Health and Substance Abuse Centers, by shared sector, subsector, and industry group.

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NAICS 621420 FAQ

Frequently Asked Questions

NAICS code 621420 covers Outpatient Mental Health and Substance Abuse Centers. This industry comprises establishments with medical staff primarily engaged in providing outpatient services related to the diagnosis and treatment of mental health disorders and alcohol and other substance abuse. These establishments generally treat patients who do not require inpatient treatment. They may provide a counseling staff and information regarding a wide range of mental health and substance abuse issues and/or refer patients to more extensive treatment programs, if necessary. Illustrative Examples: Outpatient alcoholism treatment centers and clinics (except hospitals) Outpatient mental health centers and clinics (except hospitals) Outpatient detoxification centers and clinics (except hospitals) Outpatient substance abuse treatment centers and clinics (except hospitals) Outpatient drug addiction treatment centers and clinics (except hospitals) Cross-References.

Recently Posted in Outpatient Mental Health and Substance Abuse Centers

NAICS: 621420
New
Federal
SU/MH/SOT in Detroit, MI
Solicitation # 15BCTS25Q00000019
The Federal Bureau of Prisons, through its Community Treatment Services Contracting Office, is seeking quotes for an indefinite-delivery, indefinite-quantity contract to provide outpatient substance use disorder, mental health, and sex offender treatment services to adult offenders in the Detroit, Michigan area, including those residing at Residential Re-entry Centers and those on home confinement. This solicitation, numbered 15BCTS25Q00000019, is a combined synopsis and request for quotation issued under FAR Part 12 as a commercial item acquisition, using simplified acquisition procedures and a Lowest Price Technically Acceptable (LPTA) source selection method. The contract is set aside exclusively for small business concerns with a NAICS code of 621420 and a size standard of $19 million in annual receipts. The anticipated award date is October 1, 2026, with a base performance period beginning on that date and extending through September 30, 2027, followed by four one-year option periods that could extend performance through April 1, 2032, with a potential six-month extension beyond that. Services must be delivered at locations within a 10-mile radius of Detroit City Hall and within half a mile of public transportation, with all facilities required to be ADA-compliant, privately configured for confidentiality, and located away from schools, daycares, and other vulnerable population centers. Quoters must demonstrate full technical acceptability by meeting stringent staffing, licensure, operational, and facility requirements. Each offeror must submit documentation proving that key personnel hold valid Michigan licenses, possess documented experience working with criminal justice populations, and are specifically qualified to deliver services in substance use, mental health, psychiatric care, crisis intervention, and sex offender treatment. The contractor must employ evidence-based treatment models such as Cognitive Behavioral Therapy, maintain licensed and operational clinical sites with submitted floor plans and ADA checklists, and provide emergency crisis assessments within 24 hours of referral. All clinical documentation, treatment planning, progress reports, and medication monitoring must adhere to BOP standards outlined in the 2022 Community Treatment Services Statement of Work. The government will make monthly payments via Electronic Fund Transfer upon submission of invoices to the designated email address, with small business status required to be indicated on every invoice. Quotations must include complete technical and business packets, SF-1449, proof of SAM registration, liability insurance, and the ATU Vendor Attestation Form. The solic
Community Treatment Services - Co

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NAICS: 621420
New
Federal
SU/MH/SOT in Rochester, NY
Solicitation # 15BCTS26Q00000002
The Federal Bureau of Prisons, through its Community Treatment Services Contracting Office, is seeking qualified small business providers to deliver community-based outpatient treatment services for substance use disorders, mental health conditions, and sex offender rehabilitation to male and female Adults in Custody residing at Residential Re-entry Centers or on home confinement in Rochester, New York. This solicitation, issued under FAR Part 12 as a combined synopsis and request for quotation, uses simplified acquisition procedures and is exclusively set aside for small businesses with a NAICS code of 621420 and a size standard of $19 million. The contract structure includes a one-year base period beginning October 3, 2026, with four one-year option periods, potentially extending performance through April 3, 2032, and an optional six-month extension. Services must be delivered at locations within five miles of Rochester City Hall and within one mile of public transportation, with all facilities required to meet ADA compliance, safety standards, and state licensing requirements. Contractors must provide specific minimum and estimated maximum service units across multiple clinical categories, including individual and group counseling, intake screenings, assessments, psychiatric evaluations, crisis interventions, and parenting or relationship counseling. Quotations must demonstrate compliance with stringent technical and operational requirements, including possession of valid New York state licenses for all clinical staff, documentation of clinical experience working with criminal justice populations, submission of resumes, proof of facility licensure, and adherence to evidence-based practices such as Cognitive Behavioral Therapy. Each proposal must include detailed facility diagrams, ADA checklists, and risk mitigation plans for sites near sensitive locations like schools or daycares. The evaluation will be conducted on a lowest price technically acceptable basis, with awards potentially made without discussion. All submissions must be received electronically by September 3, 2026, and must confirm acceptance of all solicitation terms without modification. Payment will be made monthly via electronic funds transfer, and contractors are required to maintain active SAM registration and comply with a comprehensive array of federal clauses covering ethics, subcontracting, labor standards, cybersecurity, and equal opportunity.
Community Treatment Services - Co

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NAICS: 621420
New
Federal
SU MH in Great Falls, MT
Solicitation # 15BCTS25Q00000016
The Federal Bureau of Prisons is soliciting community-based outpatient substance use disorder and mental health treatment services for male and female Adults in Custody residing at the Residential Re-entry Center and on home confinement in Great Falls, Montana, through a combined synopsis/solicitation (15BCTS25Q00000016) issued under FAR Part 12. This acquisition is set aside exclusively for small business concerns, with a NAICS code of 621420 and a size standard of $19 million. The contract will be awarded on a lowest price technically acceptable basis with an anticipated start date of October 1, 2026, and includes a one-year base period and four one-year option periods extending through September 30, 2031, with a potential six-month extension. The service requirements span detailed clinical deliverables, including intake screenings, individual and group counseling, treatment planning, psychiatric evaluations, medication monitoring, and crisis intervention—all subject to strict minimum and maximum unit thresholds per service line across all contract years. All services must be rendered at locations within a 10-mile radius of 3400 9th Avenue S, Great Falls, MT 59405, and within a half-mile walk to public transit, with sites requiring ADA compliance, confidentiality safeguards, and mitigation of risks to vulnerable populations within 500 feet. Proposers must demonstrate full compliance with Montana state licensure requirements for all clinical staff, submit verifiable credentials, facility licenses, office diagrams, ADA checklists, and local area concern documentation, and employ evidence-based practices such as cognitive behavioral therapy. All key personnel must have documented experience working with criminal justice populations. The contract mandates use of electronic fund transfer for monthly payments and strict adherence to FOIA confidentiality protocols for proprietary information. Submission requires a complete package including SF-1449, business and technical quotation packets, pricing charts, SAM registration proof, and professional liability insurance, submitted exclusively via email by September 3, 2026. Contractors must also attest to compliance with DOJ data security standards, agreeing to store and access all sensitive information only within the U.S. by U.S. citizens, implement robust encryption and multi-factor authentication, and report any data breaches within one hour. Failure to meet any decisional rule criterion will result in automatic exclusion from award consideration.
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