NAICS Code for Medical and Healthcare Services

Federal healthcare contracting is dominated by three agencies — VA, DoD (including DHA and the service branches), and HHS (including CMS, NIH, IHS) — each with distinct procurement patterns. NAICS selection for healthcare contractors is more fragmented than most sectors because the federal government splits clinical services, medical supplies, healthcare consulting, and research into different codes with different size standards.

Primary NAICS codes for medical services

621111: Offices of Physicians (except Mental Health Specialists) ($16M size standard) For medical practices providing physician services. VA contracts a significant volume of physician services through this NAICS.

621210: Offices of Dentists ($8M size standard) Dental services, primarily for VA and DoD dental benefits contracts.

621610: Home Health Care Services ($19M size standard) For home healthcare providers contracting with VA, IHS, and CHAMPUS/TRICARE.

621999: All Other Miscellaneous Ambulatory Health Care Services ($19M size standard) Catch-all for ambulatory services that don't fit more specific codes.

423450: Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers (150 employees) For medical supply and equipment distributors. Employee-based size standard.

Healthcare consulting and administrative NAICS

541611: Administrative Management and General Management Consulting Services ($24.5M) For healthcare management consulting, health policy advisory, operations improvement.

541612: Human Resources Consulting Services ($14M) For healthcare workforce consulting, credentialing, compensation benchmarking.

541990: All Other Professional, Scientific, and Technical Services ($17M) For specialized healthcare services that don't fit elsewhere.

Healthcare research and technology NAICS

541715: Research and Development in the Physical, Engineering, and Life Sciences ($28M, up to 1,000 employees for sub-categories) For medical research, clinical trials, pharmaceutical R&D work. Heavy NIH and DoD medical research volume.

541512: Computer Systems Design Services ($34M) For health IT contractors: EHR implementations, clinical decision support, telehealth platforms. VA VistA and DoD MHS Genesis modernization work flows through this NAICS.

541519: Other Computer Related Services ($34M) For health IT operations and managed services.

Which code should be your primary

The defining question is clinical vs consulting vs technology.

Clinical service providers (physicians, nurses, therapists) primary under the specific ambulatory or practice NAICS (621111, 621210, 621610). Size standards are lower than consulting codes but the NAICS is an exact match for the work.

Healthcare consulting firms primary under 541611 or 541612 depending on whether the work is general management or HR-focused. Higher size standards but more competition.

Health IT contractors primary under 541512 or 541519. The highest size standards in the healthcare contracting universe ($34M) and the strongest federal demand via EHR modernization initiatives.

Medical supply distributors primary under 423450 or related wholesale NAICS. Employee-based size standard changes the growth calculus.

Medical researchers primary under 541715 for applied research.

Size standard considerations

Healthcare NAICS have some of the lowest size standards in federal contracting. 621111 ($16M), 621210 ($8M), 621612 ($14M for home healthcare sub-categories). Compare this to IT ($34M) or construction ($45M). Healthcare firms graduate out of small status faster than most sectors.

If you're a growing clinical service firm, the size standard ceiling affects your timeline for set-aside competitiveness. Plan for the transition.

Federal demand snapshot

VA is the largest federal healthcare buyer. Vets First gives SDVOSB and VOSB firms priority on VA medical contracts. Home healthcare, physician services, nursing services, and medical supplies all see heavy VA SDVOSB set-aside activity.

DoD Defense Health Agency (DHA) contracts significant clinical services for military treatment facilities and TRICARE network expansion. Contract volume is high and concentrated in a few major IDIQ vehicles.

HHS, NIH, CMS, IHS drive healthcare consulting, research, and health IT work. NIH medical research grants and CMS implementation contracts flow through 541715 and 541512 respectively.

SDVOSB set-asides are common across VA medical contracts. 8(a) firms hold a disproportionate share of healthcare consulting and research contracts at HHS.

Next steps

Use the NAICS recommender to validate your codes against your specific healthcare service mix. For primary vs secondary strategy and size-standard management, see the NAICS code finder guide.