NAICS Code Description

621491 - HMO Medical Centers

Top Businesses by Annual Sales for 621491 – Click for Complete Profiles:

Molina Healthcare IncAllways Health Partners Inc
Kaiser Fundation Hlth Plan IncVirginia Premier Hlth Plan Inc
Mercy CareHealth Plan of Nevada Inc
Geisinger Health PlanAdventist Hlth Sys Snbelt Hlth
Mount Sinai Health System IncSecurity Hlth Plan Wscnsin Inc

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.


  • Health practitioners or health practitioner groups contracting to provide their services to subscribers of pre-paid health plans are classified in Industry 62111, Offices of Physicians; Industry 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 524114, Direct Health and Medical Insurance Carriers.
Index Entries for 621491
621491621491621491Group hospitalization plans providing health care services
621491621491621491Health maintenance organization (HMO) medical centers and clinics
621491621491621491HMO (health maintenance organization) medical centers and clinics