NAICS 621491: HMO Medical Centers

National industry

SBA small business size standard: $44.5 million in average annual receipts

Code facts

Contract awards
10 In the last 12 months
Contract obligations
$350,242 In FY2025

NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 $830,370
FY2025 $350,242
FY2024 $234,874
FY2023 $426,617

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Specialized Medical Company $401,753
2 BG Prevent GMBH $218,137
3 Efficience Sante AU Travail $204,672
4 Valvekliinik OU $5,807

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Air Force Department of Defense $619,890
2 Department of State $210,480
Rank PSC code Obligated, FY2026–FY2027 Share
1 Q201 Medical – Managed Healthcare $510,190
2 Q801 Medical Appointing Services $204,672
3 Q403 Medical Evaluation and Screening Services $115,508

Contract opportunities

Notice Posted Due
Occupational Medicine Services for Locally Engaged Staff Solicitation · US Embassy Paris (DOS)
Local Physician Services at U. S. Embassy Tallinn Award Notice · Department of State · 19EN1026C0001 —
USMTM Community Clinic Special Notice · Air Combat Command (USAF) · FA488526C0007 —
Local Physician Services at U. S. Embassy Tallinn Solicitation · Department of State · 19EN1026Q0001
USMTM Community Clinic Pre-Solicitation · Air Combat Command (USAF) · FA488526R0002
Local National Occupational Health Care Services Solicitation · Air Forces Europe and Africa (USAF)
Occupational Medicine Services Pre-Solicitation · US Embassy Paris (DOS)
USMTM Community Clinic Pre-Solicitation · Air Combat Command (USAF) · FA488525R0002
Onsite Medical Physician Services for US Embassy Ljubljana, Slovenia Solicitation · Department of State
Tallinn - Local Physician Services Award Notice · Department of State · 19EN1023C0002 —
Tallinn - Local Physician Services Solicitation · Department of State · 19EN1023Q0001
USMTM Community Clinic Award Notice · Air Combat Command (USAF) · FA488521C0006 —
USMTM Community Clinic Solicitation · Air Combat Command (USAF) · FA488521R0009
USMTM Community Clinic Pre-Solicitation · Air Combat Command (USAF) · FA488521R0009
Local National Occupational Health Care Services 52 Medical Group, Spangdahlem Air Base, Germany Solicitation · Air Forces Europe and Africa (USAF)
Occupational Health Care (OHC) and Consultation Service of Local National Civilians at Ramstein Air Base and its Geographically Separated Units (GSUs) in Germany Solicitation · Air Forces Europe and Africa (USAF)
Occupational Health Care (OHC) and Consultation Service of Local National Civilians Pre-Solicitation · Air Forces Europe and Africa (USAF) · FA561320Q0017
Notice of Intent to Sole Source Special Notice · FDA Office of Acquisition and Grant Services
DHA Industry Partner Network (IPN) Request For Information (RFI) :Value-Based Care Purchasing Initiatives Special Notice · Defense Health Agency
A prospective U. S. cohort set within health care systems to study cancer Pre-Solicitation · National Institutes of Health
Occupational Health Care (OHC) and Consultation Service of Local National Civilians Award Notice · Air Forces Europe and Africa (USAF) · FA5613-15-R-0007
Clinically Managed & Medically Monitored Detoxification Solicitation · CSOSA
Employee Assistance Program (EAP) for Rhode Island National Guard (RING) full time / part time excepted (military) technicians and full-time / part-time civilian technicians. See Statement of work for full details of requirements. Award Notice · Rhode Island National Guard (ARNG)
Home IV Therapy Services Nebraska Western Iowa Health Care System Pre-Solicitation · Veterans Integrated Service Network 23 (VHA)
Determine rates of diagnosed congenital toxoplasmosis for most recent 15 year period in a large health maintenance organization. Award Notice · CDC Office of Acquisition Services
FA5613-11-d-0007 Award Notice · Air Force Installation Contracting Agency (AFIMSC) —
32nd Annual Focus on Defense Symposium Special Notice · AFLCMC Hill AFB
Local National Occupational Health Examination Award Notice · Air Force Installation Contracting Agency (AFIMSC)
Hepatitis C Virus (HCV) Screening Practices and Prevalence in Primary Care Settings Pre-Solicitation · CDC Office of Acquisition Services
Procuring existing CBOC clinic in St. John, USVI Special Notice · Veterans Integrated Service Network 8 (VHA) —
Swank Computer Based Training Pre-Solicitation · Pacific Air Forces (USAF)
Pharmacist Pre-Solicitation · RCO Yongsan 411th CSB
Psychologist Award Notice · RCO Yongsan 411th CSB
Show all 33

Definition

This U.S. industry comprises establishments with physicians and other medical staff primarily engaged in providing a range of outpatient medical services to the health maintenance organization (HMO) subscribers with a focus generally on primary health care. These establishments are owned by the HMO. Included in this industry are HMO establishments that both provide health care services and underwrite health and medical insurance policies.

Illustrative examples

  • Group hospitalization plans providing health care services
  • Health maintenance organization (HMO) medical centers and clinics
  • HMO (health maintenance organization) medical centers and clinics

Quick answers

What is NAICS 621491?

NAICS 621491 is HMO Medical Centers, a national industry in NAICS 62, Health Care and Social Assistance.

What is the NAICS code for group hospitalization plans providing health care services?

The NAICS code for group hospitalization plans providing health care services is 621491, HMO Medical Centers.

What is the NAICS code for health maintenance organization (HMO) medical centers and clinics?

The NAICS code for health maintenance organization (HMO) medical centers and clinics is 621491, HMO Medical Centers.

What is the NAICS code for HMO (health maintenance organization) medical centers and clinics?

The NAICS code for HMO (health maintenance organization) medical centers and clinics is 621491, HMO Medical Centers.

How much do federal agencies spend under NAICS 621491?

Federal contracts under NAICS 621491 obligated $350,242 in fiscal year 2025 and $1,842,102 in fiscal years 2023 through 2027.

Who are the largest contractors under NAICS 621491?

The contractors with the most obligated under NAICS 621491 in fiscal years 2026 and 2027 are Specialized Medical Company ($401,753), BG Prevent GMBH ($218,137) and Efficience Sante AU Travail ($204,672).

Which agencies buy the most under NAICS 621491?

The agencies that obligated the most under NAICS 621491 in fiscal years 2026 and 2027 are Air Force ($619,890) and Department of State ($210,480).

Which PSC codes are used with NAICS 621491?

The PSC codes with the most obligated under NAICS 621491 in fiscal years 2026 and 2027 are Q201 Medical – Managed Healthcare, Q801 Medical Appointing Services and Q403 Medical Evaluation and Screening Services.

What is the latest contract opportunity under NAICS 621491?

The latest contract opportunity under NAICS 621491 is Occupational Medicine Services for Locally Engaged Staff, solicitation from US Embassy Paris (DOS), posted September 11, 2026.

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