Agencies / 251T00000X
Non-Individual · classification
251T00000X PACE Provider Organization
251T00000X is the taxonomy code for Program of All-Inclusive Care for the Elderly (PACE) Provider Organization, in the NUCC group “Agencies”. It is a code for organizations — the kind used on a Type 2 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 251T00000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 15
Definition
A PACE provider organization is a not-for-profit private or public entity that is primarily engaged in providing PACE services(unique capitated managed care benefits for the frail elderly which include comprehensive medical and social services). The following characteristics also apply to a PACE organization. It must: have a governing board that includes community representation; be able to provide complete PACE services regardless of frequency or duration of services; have a physical site to provide adult day services; have a defined service area; have safeguards against conflict of interest; have demonstrated fiscal soundness and have a formal Participant Bill of Rights.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 251T00000X sits
- Group: Agencies — code 12 of 15 in the group
- Classification: Program of All-Inclusive Care for the Elderly (PACE) Provider Organization 251T00000X
Program of All-Inclusive Care for the Elderly (PACE) Provider Organization has no specializations, so 251T00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
251T00000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — organizations of this type enroll, if at all, under a facility or supplier type rather than a practitioner specialty.
Related codes
No other codes share the classification Program of All-Inclusive Care for the Elderly (PACE) Provider Organization. The rest of Agencies is on the group page.
History of 251T00000X
251T00000X was added to the code set in 2006.
- 2006-07-01 — new
Similar codes in other groups
If 251T00000X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 390200000X Student in an Organized Health Care Education/Training Program (Student, Health Care)
- 302F00000X Exclusive Provider Organization (Managed Care Organizations)
- 302R00000X Health Maintenance Organization (Managed Care Organizations)
- 305R00000X Preferred Provider Organization (Managed Care Organizations)
- 335U00000X Organ Procurement Organization (Suppliers)
- 3336M0003X Managed Care Organization Pharmacy (Suppliers)
Find providers with 251T00000X
Using 251T00000X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV). Checked 2026-10-24. Methodology.