NPI lookup by specialty
NPI lookup by specialty
The CMS NPI Registry searches provider taxonomy, not a free-text specialty. Verified against the official registry API on 2026-07-30, taxonomy_descriptionworks on its own and alongside a state — which matters, because a state-only query is refused outright. Each taxonomy page below runs the live query and shows the official URL behind every record.
Search parameter
taxonomy_description
Matched as a prefix, so “Dentist” returns records classified “Dentist, General Practice” and similar.
Classification source
NUCC taxonomy
Providers select their taxonomy during NPPES enumeration and maintain it themselves.
Review limit
Not licensure
Taxonomy does not validate licensure, credentialing, Medicare enrollment, or current practice authority.
Taxonomy pages
Last verified: 2026-07-30. date_retrieved: 2026-07-30. Each page runs a nationwide taxonomy query against the official registry, links every record to its full NPI profile, and pairs the taxonomy with the state pages that narrow it.
Physician Assistant
NPI lookup for physician assistants
Registry query taxonomy_description=Physician Assistant.
Pharmacy
NPI lookup for pharmacies
Registry query taxonomy_description=Pharmacy.
Dentist
NPI lookup for dentists
Registry query taxonomy_description=Dentist.
Narrow by state
Pair a taxonomy with a state
A state cannot be searched on its own, so the taxonomy is what makes a state-scoped query legal. These state pages run every taxonomy above against one state.
Reviewed by SourceCheck Health
Last reviewed: 2026-07-30. date_retrieved: 2026-07-30.
The registry behaviour recorded on this page is re-issued against the official CMS NPI Registry API before the taxonomy lookup guidance is updated. Taxonomy is the classification CMS publishes from NPPES, not proof of licensure or current practice authority.
FAQ
Practical notes
Can you look up an NPI by specialty?
Yes, through taxonomy. Verified against the official CMS NPI Registry API on 2026-07-30, taxonomy_description works on its own and alongside a state, so "Physician Assistant", "Pharmacy", and "Dentist" all return records. The registry matches the taxonomy description CMS publishes, not a free-text specialty.
Is registry taxonomy the same as a medical specialty?
Not exactly. Taxonomy is the NUCC Health Care Provider Taxonomy classification recorded in NPPES. It is chosen by the provider during enumeration and maintained by them, so it describes the classification on the record rather than verified scope of practice.
Can I combine a specialty with a state?
Yes, and that is the only way to scope a state at all: a state-only query is rejected with error 07, while state plus taxonomy_description returns records. Each specialty page links to the state pages that pair the two.
Does a taxonomy match prove licensure?
No. NPI issuance and taxonomy selection do not validate licensure, credentialing, Medicare enrollment, or current practice authority, and they say nothing about federal exclusion status.