# NPPES NPI Registry API

**Canonical:** https://apis.io/apis/cms-gov/nppes-npi-registry/  
**Provider:** CMS — Centers for Medicare & Medicaid Services — https://apis.io/providers/cms-gov/  
**Base URL:** https://npiregistry.cms.hhs.gov/api/  
**Documentation:** https://npiregistry.cms.hhs.gov/

NPPES NPI Registry API is one of 62 APIs that [CMS — Centers for Medicare & Medicaid Services](https://apis.io/providers/cms-gov/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Credentialing, NPI, NPPES, Provider Identifier, and Provider Registry. The published artifact set on APIs.io includes API documentation.

The NPPES NPI Registry API provides free public access to look up active National Provider Identifier records for individual and organizational healthcare providers, supporting FHIR-compatible JSON responses used widely in credentialing, directory, and claims validation workflows.

## Machine-readable artifacts (3)

- **Website** — https://npiregistry.cms.hhs.gov/
- **Documentation** — https://npiregistry.cms.hhs.gov/api-page
- **Help** — https://npiregistry.cms.hhs.gov/help-api/

## Other CMS — Centers for Medicare & Medicaid Services APIs (12)

- [CMS — Centers for Medicare & Medicaid Services Articles API](https://apis.io/apis/cms-gov/cms-gov-articles-api/)
- [CMS — Centers for Medicare & Medicaid Services Auth API](https://apis.io/apis/cms-gov/cms-gov-auth-api/)
- [CMS — Centers for Medicare & Medicaid Services Benchmarks API](https://apis.io/apis/cms-gov/cms-gov-benchmarks-api/)
- [CMS — Centers for Medicare & Medicaid Services Bulk Export API](https://apis.io/apis/cms-gov/cms-gov-bulk-export-api/)
- [CMS — Centers for Medicare & Medicaid Services Catalog API](https://apis.io/apis/cms-gov/cms-gov-catalog-api/)
- [CMS — Centers for Medicare & Medicaid Services Coverage API](https://apis.io/apis/cms-gov/cms-gov-coverage-api/)
- [CMS — Centers for Medicare & Medicaid Services Data API](https://apis.io/apis/cms-gov/cms-gov-data-api/)
- [CMS — Centers for Medicare & Medicaid Services Drugs API](https://apis.io/apis/cms-gov/cms-gov-drugs-api/)
- [CMS — Centers for Medicare & Medicaid Services Eligibility API](https://apis.io/apis/cms-gov/cms-gov-eligibility-api/)
- [CMS — Centers for Medicare & Medicaid Services ExplanationOfBenefit API](https://apis.io/apis/cms-gov/cms-gov-explanationofbenefit-api/)
- [CMS — Centers for Medicare & Medicaid Services Geography API](https://apis.io/apis/cms-gov/cms-gov-geography-api/)
- [CMS — Centers for Medicare & Medicaid Services Group API](https://apis.io/apis/cms-gov/cms-gov-group-api/)

## Tags

Credentialing, NPI, NPPES, Provider Identifier, Provider Registry

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cms-gov/nppes-npi-registry/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cms-gov/.