What's the NAICS and SIC code for a medical practice (doctor's office)?
For a medical practice (doctor's office), use NAICS 621111 (Offices of Physicians (except Mental Health Specialists)) in the US and SIC 86210 (General medical practice activities) in the UK.
United States, NAICS 2022
621111 Offices of Physicians (except Mental Health Specialists)
Offices of Physicians (except Mental Health Specialists).
SBA small business limit: $16 million average annual receipts.
United Kingdom, SIC 2007
86210 General medical practice activities
General medical practice activities: GPs and family doctors.
Use this code when you register with Companies House or file your confirmation statement.
When a different code fits better
These are the codes most often confused with the main answer. Pick by the activity that earns most of your revenue.
| Code | Title | Use it if |
|---|---|---|
| NAICS 621112 | Offices of Physicians, Mental Health Specialists | the practice is psychiatry |
| NAICS 621493 | Freestanding Ambulatory Surgical and Emergency Centers | you run a freestanding urgent care or ambulatory surgical center |
| SIC 86220 | Specialists medical practice activities | you are a specialist consultant in private practice |
Good to know
You can list more than one code. Companies House accepts up to four SIC codes, and SAM.gov lets you add several NAICS codes, with one marked as primary.
What the code affects
- SBA programs and federal contracts: your NAICS code sets the size limit you must stay under to count as small. Check your size.
- SAM.gov registration: contracting officers search by NAICS, so list every code you can deliver work under.
- Companies House: your SIC code appears on the public register and in your confirmation statement.
Related business types
Codes checked against the US Census 2022 NAICS index and the ONS UK SIC 2007 index. Information only; confirm with the agency you file with.