NAICS Code 621491

NAICS 621491

NAICS Code 621491 – HMO Medical Centers

Definition of NAICS Code 621491: 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.

  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 621491

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

  • Health practitioners or health practitioner groups contracting to provide their services to subscribers of prepaid health plans are classified in Industry 62111, Offices of Physicians; Industry NAICS 621210, Offices of Dentists; and Industry Group 6213, Offices of Other Health Practitioners; and
  • HMO establishments (except those providing health care services) primarily engaged in underwriting and administering health and medical insurance policies are classified in U.S. Industry NAICS 524114, Direct Health and Medical Insurance Carriers.

Other Index Entries for NAICS 621491

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

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

Suggested Insurance Conversion Table for NAICS Code 621491

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 8832NAICS 621491
  • CA WC: 8834
  • DE WC: 957
  • PA WC: 957
  • MI WC: 8832
  • NJ WC: 8832
  • NY WC: 8832
  • WY WC: 621491
  • GL: 66561
  • SIC: 8011

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 621491 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 62: Health Care and Social Assistance
  • Subsector 621: Ambulatory Health Care Services
  • Industry Group 6214: Outpatient Care Centers
  • Industry 62149: Other Outpatient Care Centers
  • 6 Digit Code(s) NAICS 621491: HMO Medical Centers
  • 6 Digit Code(s) NAICS 621492: Kidney Dialysis Centers
  • 6 Digit Code(s) NAICS 621493: Freestanding Ambulatory Surgical and Emergency Centers
  • 6 Digit Code(s) NAICS 621498: All Other Outpatient Care Centers
Other helpful NAICS Downloads

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NAICS Code 621491