Agencies / 251K00000X
Non-Individual · classification · Medicare specialty 60
251K00000X Public Health or Welfare Agency
251K00000X is the taxonomy code for Public Health or Welfare, in the NUCC group “Agencies”. It is a code for organizations — the kind used on a Type 2 NPI. Medicare maps it to specialty 60, Public Health or Welfare Agency, under which 0 practitioners are enrolled.
- 1Taxonomy code 251K00000X
- 2Level Classification
- 3Medicare specialty 60 Public Health or Welfare Agency
- 4Codes in this group 15
Definition
NUCC publishes no definition for 251K00000X; the code is identified by its place in the tree below.
Where 251K00000X sits
- Group: Agencies — code 13 of 15 in the group
- Classification: Public Health or Welfare 251K00000X
Public Health or Welfare has no specializations, so 251K00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 251K00000X to Medicare specialty 60 (Public Health or Welfare Agency). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 0 practitioners are enrolled under it nationally.
Related codes
No other codes share the classification Public Health or Welfare. The rest of Agencies is on the group page.
History of 251K00000X
NUCC's notes record no dated changes for 251K00000X. The code set is republished every January and July, when codes are added, retitled or marked inactive; this page reflects version 26.1, so check the NUCC site if you are reading it after the next release.
Similar codes in other groups
If 251K00000X 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:
- 2083P0901X Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians)
- 1223D0001X Public Health Dentistry (Dental Providers)
- 364SC1501X Community Health/Public Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers)
- 213EP0504X Public Medicine Podiatrist (Podiatric Medicine & Surgery Service Providers)
- 261QP0904X Federal Public Health Clinic/Center (Ambulatory Health Care Facilities)
- 261QP0905X State or Local Public Health Clinic/Center (Ambulatory Health Care Facilities)
Find providers with 251K00000X
Using 251K00000X
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); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.