NPI lookup API
NPI lookup API for production integrations
You can use the official NPI Registry directly. Health Provider API is for teams that want normalized responses, API keys, quotas, docs, request IDs, caching, Postman/OpenAPI, and a more productized developer experience.
No credit card on free tierOpenAPI specPostman collectionUS NPI Registry (NPPES) source dataNPI-1 and NPI-2
Why teams choose Health Provider API
You can use the official NPI Registry directly. Health Provider API is for teams that want normalized responses, API keys, quotas, docs, request IDs, caching, Postman/OpenAPI, and a more productized developer experience.
- Single-NPI GET with stable JSON and documented error codes
- NPI-1 and NPI-2 fields normalized for apps and workflows
- Cache metadata and request IDs for support and audits
Same registry, better integration surface
Authoritative NPPES data with predictable JSON, auth, and operational headers—so engineering can ship features instead of parsers.