NAICS Code 621491 – HMO Medical Centers
Official 6-digit NAICS national industry U.S. Census Bureau NAICS 2022
At a glance
More specific segments
Related SIC
Get counts, pricing and a free sample
Industry examples
Census industry examples, shown as published.
- Group hospitalization plans providing health care services
- Health maintenance organization (HMO) medical centers and clinics
- HMO (health maintenance organization) medical centers and clinics
Official 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.
Source: U.S. Census Bureau, NAICS 2022
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More specific segments in NAICS 621491
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
Segment codes are 8-digit commercial segments that extend the official 6-digit NAICS code. They are not official Census NAICS codes.
| Code | Segment | U.S. companies | Build your list |
|---|---|---|---|
| 621491-01 | Vascular Surgery |
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Example companies
See how SICCODE.com evaluates businesses using documented activities and official definitions. Select a company to review its classification and the reasoning behind it.
- Saint Lukes Health System Inc Kansas City, MO View classification →
- Qualis Health Seattle, WA View classification →
- Kaiser Public Affairs Pasadena, CA View classification →
- Optima Family Care Virginia Beach, VA View classification →
- Senior Dimensions Las Vegas, NV View classification →
- Beech Street Lake Forest, CA View classification →
- Health Smart Network Solutions Irving, TX View classification →
- Cigna Medical Group Bethlehem, PA View classification →
Key facts
- Code
- 621491
- Classification level
- Official 6-digit NAICS national industry
- Official source
- U.S. Census Bureau · NAICS 2022
- SBA size standard
- $35 million
- Related SIC
- 8011 Offices and Clinics of Doctors of Medicine
Source: U.S. Small Business Administration Table of Size Standards →
Industry statistics
Historical statistics
2017 Economic Census
2017 Economic Census
- Establishments (2017)
- 1,035
- Paid employees (2017)
- 49,571
- Revenue (2017)
- $11,358,608,000
- Annual payroll (2017)
- $3,745,045,000
Cross-references
- Health practitioners or health practitioner groups contracting to provide their services to subscribers of pre-paid health plans are classified in NAICS Code 62111 - Offices of Physicians; NAICS Code 621210 - Offices of Dentists; and NAICS Code 6213 - Offices of Other Health Practitioners
- HMO establishments (except those providing health care services) primarily engaged in underwriting and administering health and medical insurance policies are classified in U.S. NAICS Code 524114 - Direct Health and Medical Insurance Carriers
NAICS classification hierarchy
Five official Census levels, from sector to national industry, plus a commercial extended level.
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National industry 621491 HMO Medical Centers
Extended 8-digit codes are commercial segments, not official Census NAICS codes.
Related classifications
Correspondences in SIC, ISIC and NACE Rev. 2.1. These mappings do not replace the official Census definition.
| System | Code | Title |
|---|---|---|
| NAICS This page | 621491 | HMO Medical Centers |
| SIC | 8011 | Offices and Clinics of Doctors of Medicine Offices and Clinics of Doctors of Medicine |
| ISIC Rev. 4 | 8620 | Medical And Dental Practice Activities Medical And Dental Practice Activities |
| NACE Rev. 2.1 (via ISIC 8620) | 86.21 | General medical practice activities General medical practice activities |
| NACE Rev. 2.1 (via ISIC 8620) | 86.22 | Medical specialists activities Medical specialists activities |
| NACE Rev. 2.1 (via ISIC 8620) | 86.23 | Dental practice care activities Dental practice care activities |
Source: Eurostat, NACE Rev. 2.1 to ISIC Rev. 5 correspondence; United Nations Statistics Division, ISIC Rev. 4 to ISIC Rev. 5 correspondence table.
Sources
-
Official classification source U.S. Census Bureau.
North American Industry Classification System (2022), NAICS 621491. U.S. Census Bureau → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
SICCODE.com is an independent publisher. Official NAICS titles and definitions come from the U.S. Census Bureau. Commercial database counts are SICCODE.com records.
About this classification
This page combines the official U.S. Census Bureau NAICS definition with classification crosswalks and SICCODE.com commercial data. Classifications are reviewed regularly by the Classification Review Team.