621112 — Offices of Physicians, Mental Health Specialists
Description
This U.S. industry comprises establishments of health practitioners having the degree of M.D. (Doctor of Medicine) or D.O. (Doctor of Osteopathic Medicine) primarily engaged in the independent practice of psychiatry or psychoanalysis. These practitioners operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Establishments of independent mental health practitioners (except physicians) are classified in Industry
- 621330, Offices of Mental Health Practitioners (except Physicians);
- Outpatient mental health and substance abuse centers are classified in Industry 621420, Outpatient Mental
- Health and Substance Abuse Centers; and
- Establishments primarily engaged in providing nonresidential counseling services for substance abuse,
- mental health, suicide intervention, and other crisis intervention social services to children and youth, the
- elderly, persons with disabilities, and all other individuals and families are classified in Industry Group
- 6241, Individual and Family Services.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 8011 - Offices and Clinics of Doctors of Medicine (via SIC1987:8011→NAICS1997:621112→2002:621112→2007:621112→2012:621112→2017:621112→2022:621112)
- SIC 8031 - Offices and Clinics of Doctors of Osteopathy (via SIC1987:8031→NAICS1997:621112→2002:621112→2007:621112→2012:621112→2017:621112→2022:621112)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC Q519 — Behavioral and Mental Health
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 621112 valid in 2022? ▾
Yes, 621112 is a valid 6-digit 2022 NAICS national industry code representing 'Offices of Physicians, Mental Health Specialists' under Sector 62 in the official classification index.
What is the SBA size standard for NAICS code 621112? ▾
The Small Business Administration (SBA) has established a small business size standard of $13,500,000 for NAICS code 621112 (Offices of Physicians, Mental Health Specialists), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 621112? ▾
According to official Census Bureau concordance tables, NAICS code 621112 (Offices of Physicians, Mental Health Specialists) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 8011 - Offices and Clinics of Doctors of Medicine, 8031 - Offices and Clinics of Doctors of Osteopathy.
Related Pages & Tools
Further regulatory reference links for NAICS code 621112:
- Sector 62 Directory Hub — List of related industries in the Health Care and Social Assistance sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 621112 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Offices of Physicians, Mental Health Specialists).
- IRS PBA Code for Healthcare — Principal Business Activity tax reporting details.
- IRS PBA Code for Physician — Principal Business Activity tax reporting details.
- Compare NAICS 621111 vs 621112 — Industrial classification comparison rules (Offices of Physicians, Mental Health Specialists vs Offices of Physicians (except Mental Health Specialists)).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.