621399 Offices of All Other Miscellaneous Health Practitioners

Official definition

This U.S. industry comprises establishments of independent health practitioners (except physicians; dentists; chiropractors; optometrists; mental health specialists; physical, occupational, and speech therapists; audiologists; and podiatrists). 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.

Examples Census gives

• Acupuncturists' (except MDs or DOs) offices
• Hypnotherapists' offices
• Dental hygienists' offices
• Inhalation or respiratory therapists' offices
• Denturists' offices
• Midwives' offices
• Dietitians' offices
• Naturopaths' offices
• Homeopaths' offices
• Registered or licensed practical nurses' offices

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:

• The independent practice of medicine (i.e., physicians) are classified in Industry 62111, Offices of Physicians.
• The independent practice of dentistry are classified in Industry 621210, Offices of Dentists.
• The independent practice of chiropractic are classified in Industry 621310, Offices of Chiropractors.
• The independent practice of optometry are classified in Industry 621320, Offices of Optometrists.
• The independent practice of mental health (except physicians) are classified in Industry 621330, Offices of Mental Health Practitioners (except Physicians).
• The independent practice of physical, occupational, and speech therapy, and audiology are classified in Industry 621340, Offices of Physical, Occupational and Speech Therapists, and Audiologists.
• The independent practice of podiatry are classified in U.S. Industry 621391, Offices of Podiatrists.
• Operating outpatient community health clinics with health practitioners from multiple industries are classified in U.S. Industry 621498, All Other Outpatient Care Centers.

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

Businesses that use this code

• Massage therapist
• Physical therapist or physiotherapist

Activities listed under 621399

The Census index assigns these 34 activities to this code. If your business matches one, this is your code.

• Acupuncturists' (except MDs or DOs) offices (e.g., centers, clinics)
• Advanced practicing registered nurses’ (APRNs) offices (e.g., centers, clinics)
• Certified registered nurse anesthetists’ (CRNAs) offices (e.g., centers, clinics)
• Christian Science practitioners' offices (e.g., centers, clinics)
• Clinical nurse specialists’ (CNSs) offices (e.g., centers, clinics)
• Clinical pharmacists' offices (e.g., centers, clinics)
• Dental hygienists' offices (e.g., centers, clinics)
• Denturists' offices (e.g., centers, clinics)
• Dietitians' offices (e.g., centers, clinics)
• Herbalists' offices (e.g., centers, clinics)
• Home nursing services, private practice
• Homeopaths' offices (e.g., centers, clinics)
• Hypnotherapists' offices (e.g., centers, clinics)
• Inhalation therapists' offices (e.g., centers, clinics)
• Licensed practical nurses' (LPNs) offices (e.g., centers, clinics)
• LPNs' (licensed practical nurses) offices (e.g., centers, clinics)
• Manual-arts therapists' offices (e.g., centers, clinics)
• Massage therapists' offices (e.g., centers, clinics)
• Midwives' offices (e.g., clinics)
• Naturopaths' offices (e.g., centers, clinics)
• Nurse practitioners’ offices (e.g., centers, clinics)
• Nurses', licensed practical or registered, offices (e.g., centers, clinics)
• Nursing call centers
• Nutritionists' offices (e.g., centers, clinics)
• Ocularists' offices (e.g., centers, clinics)
• Orthotists' offices (e.g., centers, clinics)
• Paramedics' offices (e.g., centers, clinics)
• Pedorthics' offices (e.g., centers, clinics)
• Physicians' assistants' offices (e.g., centers, clinics)
• Practical nurses' offices (e.g., centers, clinics), licensed
• Prosthetists' offices (e.g., centers, clinics)
• Registered nurses' (RNs) offices (e.g., centers, clinics)
• Respiratory therapists' offices (e.g., centers, clinics)
• RNs' (registered nurses) offices (e.g., centers, clinics)

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 621399

To count as a small business for SBA loans and federal contracts under NAICS 621399, your business (including affiliates) must not exceed $10 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: 8690), so treat them as a starting point and check the definition.

• 86900Other human health activitiesUK SIC

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

Similar codes to compare

• 621391Offices of Podiatrists