NUCC taxonomy code
305R00000X - Preferred Provider Organization
305R00000X is the NUCC provider taxonomy code for Preferred Provider Organization (organizations). 3,091 providers in our latest NPPES snapshot list it as their primary taxonomy.
3,091
providers · primary taxonomy
Code breakdown
Taxonomy code 305R00000X
Display name Preferred Provider Organization
Grouping Managed Care Organizations
Classification Preferred Provider Organization
Section Non-Individual
Definition
A group of physicians and/or hospitals who contract with an employer to provide services to their employees. In a PPO, the patient may got to the physician of his/her choice, even if that physician does not participate in the PPO, but the patient receives care at a lower benefit level.
Definition from the NUCC Health Care Provider Taxonomy code set.
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Frequently asked questions
What does taxonomy code 305R00000X mean?
305R00000X is the NUCC Health Care Provider Taxonomy code for Preferred Provider Organization in the "Managed Care Organizations" grouping. It classifies organizations and non-individual providers.
Where is the taxonomy code used?
Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.
How do I find providers with taxonomy 305R00000X?
Browse the Preferred Provider Organization directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-13.