Health Maintenance Organization Providers — NPI Directory

4,594 active Health Maintenance Organization providers hold an NPI in the latest NPPES snapshot. Health Maintenance Organization falls under the “Managed Care Organizations” taxonomy grouping and spans 1 NUCC taxonomy code. Browse by state, or look a provider up by name or NPI number.

Health Maintenance Organization by state

Taxonomy codes for Health Maintenance Organization

Frequently asked questions

How do I find a Health Maintenance Organization provider's NPI number?
Search by name with the NPI search, or browse by state below. Every profile shows the provider's NPI, taxonomy code, practice address, and NPPES status.
What taxonomy codes does Health Maintenance Organization use?
Health Maintenance Organization covers 1 NUCC taxonomy code, including 302R00000X (Health Maintenance Organization). Each code page explains when it applies.
How many Health Maintenance Organization providers are there in the U.S.?
Our latest NPPES snapshot lists 4,594 active providers with Health Maintenance Organization as their primary taxonomy.

Source: CMS NPPES (public data). Snapshot 2026-07-09.