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Case Management Agency: NPI taxonomy code 251B00000X

Taxonomy code 251B00000X is Case Management, in the Agencies group.

20,426 active NPIs list it as their primary specialty (0.2% of all).

Code251B00000X
GroupAgencies
ClassificationCase Management
Used fororganizations (the code is in NUCC's Non-Individual section)
Active NPIs, primary specialty20,426 (3,320 individuals, 17,106 organizations)

What NUCC says: An organization that is responsible for providing case management services. The agency provides services which assist an individual in gaining access to needed medical, social, educational, and/or other services. (excerpt of the NUCC 26.1 definition)

Find Case Management Agency providers

Search the registry for providers listing Case Management. Pick a state to narrow it down.

Where they are

StateActive NPIsShare
California2,07910.2%
Florida1,9559.6%
Texas1,7588.6%
New York1,2246.0%
North Carolina1,0044.9%
Ohio8284.1%
Pennsylvania7133.5%
Wisconsin6813.3%
New Jersey5942.9%
Michigan5892.9%

Top states by practice location, from the NPPES file of September 13, 2026.

Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.