Industry 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.
Cross-References.
Business Examples
Common types of business activities within NAICS 621491 - HMO Medical Centers are:
- HMO (health maintenance organization) medical centers and clinics
- Health maintenance organization (HMO) medical centers and clinics
- Group hospitalization plans providing health care services
IBISWorld Industry Research Report
Emergency & Other Outpatient Care Centers in the US (62149)
Revenue 2025
$215.8bn
Growth 2025
2.07%
Key Trends
Consolidation among healthcare providers will help support industry profit
As pent-up demand for delayed elective procedures returns, industry revenue is projected to climb
The number of US residents aged 65 and older is projected to grow more quickly than the total population
Products and Services
Similar Industries
For some business types, there may be a similar industry to 621491 - HMO Medical Centers that is a better classification match. Establishments primarily engaged in:
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NAICS Cross Reference
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.
IBISWorld industry research report
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NAICS Cross Reference
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
IBISWorld industry research report
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NAICS Cross Reference
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
IBISWorld industry research report
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NAICS Cross Reference
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
IBISWorld industry research report
NAICS Hierarchy 621491 - HMO Medical Centers
NAICS Code 621491 - HMO Medical Centers sits in the 2-digit HMO Medical Centers sector. NAICS codes can be 2- to 6-digits and the further along the hierarchy, the more detailed and specific the category will be. Learn more about the structure of NAICS codes
2 Digits: 62
Sector Title: Health Care and Social Assistance
3 Digits 4 Digits 5 Digits 6 Digits
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6211 Offices of Physicians
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6212 Offices of Dentists
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62121 Offices of Dentists
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6213 Offices of Other Health Practitioners
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62131 Offices of Chiropractors
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62132 Offices of Optometrists
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62133 Offices of Mental Health Practitioners (except Physicians
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62134 Offices of Physical, Occupational and Speech Therapists, and Audiologists
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62139 Offices of All Other Health Practitioners
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6214 Outpatient Care Centers
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62141 Family Planning Centers
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62142 Outpatient Mental Health and Substance Abuse Centers
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62149 Other Outpatient Care Centers
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6215 Medical and Diagnostic Laboratories
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62151 Medical and Diagnostic Laboratories
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6216 Home Health Care Services
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62161 Home Health Care Services
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6219 Other Ambulatory Health Care Services
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62191 Ambulance Services
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62199 All Other Ambulatory Health Care Services
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6221 General Medical and Surgical Hospitals
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62211 General Medical and Surgical Hospitals
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6222 Psychiatric and Substance Abuse Hospitals
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62221 Psychiatric and Substance Abuse Hospitals
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6223 Specialty (except Psychiatric and Substance Abuse) Hospitals
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62231 Specialty (except Psychiatric and Substance Abuse) Hospitals
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6231 Nursing Care Facilities (Skilled Nursing Facilities
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62311 Nursing Care Facilities (Skilled Nursing Facilities
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6232 Residential Intellectual and Developmental Disability, Mental Health, and Substance Abuse Facilities
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62321 Residential Intellectual and Developmental Disability Facilities
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62322 Residential Mental Health and Substance Abuse Facilities
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6233 Continuing Care Retirement Communities and Assisted Living Facilities for the Elderly
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62331 Continuing Care Retirement Communities and Assisted Living Facilities for the Elderly
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6239 Other Residential Care Facilities
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62399 Other Residential Care Facilities
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6241 Individual and Family Services
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62411 Child and Youth Services
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62412 Services for the Elderly and Persons with Disabilities
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62419 Other Individual and Family Services
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6242 Community Food and Housing, and Emergency and Other Relief Services
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62421 Community Food Services
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62422 Community Housing Services
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62423 Emergency and Other Relief Services
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6243 Vocational Rehabilitation Services
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62431 Vocational Rehabilitation Services
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6244 Child Day Care Services
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62441 Child Day Care Services
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