NAICS 621498:
All Other Outpatient Care Centers
This U.S. industry comprises establishments with medical staff primarily engaged in providing general or specialized outpatient care (except family planning centers, outpatient mental health and substance abuse centers, HMO medical centers, kidney dialysis centers, and freestanding ambulatory surgical and emergency centers). Centers or clinics of health practitioners with different degrees from more than one industry practicing within the same establishment (e.g., Doctor of Medicine and Doctor of Dental Medicine) are included in this industry.
Outpatient biofeedback centers and clinicsOutpatient pain therapy centers and clinicsOutpatient community health centers and clinics+1 example
Matching SIC code: 8093 Specialty Outpatient Facilities, Not Elsewhere Classified
Where it sits
- 62Health Care and Social AssistanceSector
- 621Ambulatory Health Care ServicesSubsector
- 6214Outpatient Care CentersIndustry group
- 62149Other Outpatient Care CentersNAICS industry
- 621498All Other Outpatient Care CentersNational industry
Largest companies with NAICS 621498
Updated Nov 9, 2026| Rank | Company | Headquarters | Employees |
|---|---|---|---|
| 1 |  Optumoptum.com | Eden Prairie, US | 115K |
| 2 |  Action Behavior Centers - ABA Therapy for Autismactionbehavior.com | Austin, US | 9.7K |
| 3 |  Concentraconcentra.com | Addison, US | 8.5K |
| 4 |  Teladoc Healthteladoc.com | New York, US | 5.6K |
| 5 |  Wellpathwellpathcare.com | Franklin, US | 5.4K |
| 6 |  Premise Healthpremisehealth.com | Brentwood, US | 4.4K |
| 7 |  Hopebridgehopebridge.com | Indianapolis, US | 3.3K |
| 8 |  Community Health Centerchc1.com | Middletown, US | 3.1K |
| 9 |  AltaMed Health Servicesaltamed.org | Los Angeles, US | 2.9K |
| 10 |  Centurion Healthteamcenturion.com | Sterling, US | 2.9K |
Not this code?
Similar activities the Census classifies elsewhere.
- 62111Offices of PhysiciansCenters and clinics of health practitioners from the same industry primarily engaged in the independent practice of their profession
Questions about NAICS 621498
Which businesses use NAICS 621498?
What SIC code matches NAICS 621498?
How many companies have NAICS 621498?
Code titles, definitions, examples and SIC matches: NAICS 2022 and the Census concordances, US Census Bureau. Company counts and lists: Crustdata, companies with a website, each by its primary code, updated weekly. Employee counts are estimates.