NPI Registry

Lists every enumerated provider, individual or organisational, whose NPPES address line matches a given street and city, with their NPIs, names, taxonomies and the rest of the address.

Returns the roster of enumerated providers in one postal code - NPI, name, taxonomies, addresses and status - with no name or specialty needed to start.

Finds organisational NPIs whose authorised official - the human legally responsible for the enumeration - carries a given name, returning each organisation's NPI, legal name, taxonomies and addresses.

Returns every Medicare fee-for-service enrollment PECOS holds for one NPI (2026-10-01 release): enrollment id, PECOS associate control id, provider type code and description, the state it is enrolled in, and the individual or organisation name.

Returns the single NPPES record for one 10-digit NPI: enumeration type and date, status, NUCC taxonomies, practice and mailing addresses, other identifiers and (for organisations) the authorised official.

Returns the Medicare opt-out affidavit on file for one NPI (2026-08-01 release): specialty, effective and end dates of the opt-out period, the address filed with it, and whether the clinician may still order and refer.

Returns the CMS Order and Referring row (2026-10-20 release) for one NPI: the clinician's name plus Y/N flags for whether they may order or refer Part B services, DME, home health, power mobility devices and hospice.

Searches the NPPES registry for organisational (type 2) providers - hospitals, clinics, group practices, pharmacies, labs - returning NPI, legal and other business names, taxonomies, addresses and the authorised official on file.

Returns the clinic and group practice reassignment rows for one individual NPI (2026-10-01 release): each group's legal business name, PAC id, enrollment id, state and due date, alongside the individual's own enrollment, specialty and employer-association count.

Returns the Medicare revalidation rows for one NPI (2026-10-01 release): enrollment id, enrollment type and specialty, state, the published revalidation due date and any adjusted date, plus counts of reassignments to and from the provider.

Searches the NPPES registry for individual (type 1) clinicians by name, specialty and location, returning each provider's NPI, credentials, taxonomies, addresses and other identifiers.

Lists providers whose NUCC taxonomy matches a specialty description, optionally narrowed to a city, state or ZIP, with each one's NPI, name, full taxonomy list and addresses.

The complete 566-row CMS crosswalk (2026-08-01 release) between NUCC provider taxonomy codes, their full type/classification/specialisation text, and the Medicare specialty codes and supplier-type descriptions they map to.

Returns the calendar-year 2024 Medicare Physician and Other Practitioners summary for one NPI: distinct HCPCS codes, beneficiary and service counts, submitted charges and allowed, paid and standardised amounts split into drug and medical, plus beneficiary age, sex, race, dual-eligible and average risk-score breakdowns.