# NAICS 621491: HMO Medical Centers

The SBA size standard for NAICS 621491 is $44,500,000 in average annual receipts (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 621491 |
| Title | HMO Medical Centers |
| Level | 6 |
| Parent | 62149 |
| Size standard | $44,500,000 in average annual receipts |
| Footnote | - |

## Description

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.

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/621491/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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