# NPPES API **Provider:** NPPES **Category:** developer **Base URL:** `https://npiregistry.cms.hhs.gov` **Auth:** none — `# No auth required` **Rate Limit:** See documentation **Free Tier:** Yes — [object Object] **Pricing:** Free tier available (freemium) **Docs:** https://npiregistry.cms.hhs.gov/registry/help-api ## Description National Plan & Provider Enumeration System, info on healthcare providers registered in US ## Endpoints | Method | Endpoint | Description | |--------|----------|-------------| | GET | `https://npiregistry.cms.hhs.gov/` | See documentation for endpoint reference | ## Authentication No authentication required ``` # No auth required ``` ## Sample Request ```bash curl 'https://npiregistry.cms.hhs.gov' ``` ## Sample Response ```json {} ``` ## Pricing Details Free — open public API, no authentication required. --- *Source: [API Map](https://apimap.dev/apis/nppes/) — CC BY 4.0*