621112 Offices of Physicians, Mental Health Specialists

Official definition

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.

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

• 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.
• 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.

Source: US Census Bureau, 2022 NAICS cross-references.

Businesses that use this code

• Therapist or counsellor (mental health)
• Medical practice (doctor's office)

Activities listed under 621112

The Census index assigns these 10 activities to this code. If your business matches one, this is your code.

• Doctors of osteopathic medicine (DOs), mental health, offices (e.g., centers, clinics)
• DOs' (doctors of osteopathic medicine), mental health, offices (e.g., centers, clinics)
• MDs' (medical doctors), mental health, offices (e.g., centers, clinics)
• Medical doctors' (MDs), mental health, offices (e.g., centers, clinics)
• Mental health physicians' offices (e.g., centers, clinics)
• Pediatricians', mental health, offices (e.g., centers, clinics)
• Physicians', mental health, offices (e.g., centers, clinics)
• Psychiatrists' offices (e.g., centers, clinics)
• Psychoanalysts' (MDs or DOs) offices (e.g., centers, clinics)
• Psychotherapists' (MDs or DOs) offices (e.g., centers, clinics)

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 621112

To count as a small business for SBA loans and federal contracts under NAICS 621112, your business (including affiliates) must not exceed $13.5 million in average annual receipts. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 8620), so treat them as a starting point and check the definition.

• 86210General medical practice activitiesUK SIC
• 86220Specialists medical practice activitiesUK SIC
• 86230Dental practice activitiesUK SIC

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

• 621111Offices of Physicians (except Mental Health Specialists)