NPILayer for ChatGPT

com.npilayer/npilayer

Look up U.S. healthcare providers by NPI, name, specialty and ZIP radius from CMS NPPES data.

client:ChatGPT transport:streamable-http tools:3

Install NPILayer in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://npilayer.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs