Look up US healthcare providers and organisations by NPI. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the NPPES NPI Registry connector, then ask in plain words. The AI picks the tools.
For billing, credentialing and research staff who check US healthcare providers in the NPI Registry.
The AI reads the registry record for an exact 10-digit NPI: basic info, addresses, specialties (taxonomies), identifiers and other names.
The AI searches individual providers by name (with a * wildcard), specialty and location. It can then open a match by NPI to read its practice addresses.
The AI searches organizations such as hospitals, group practices, pharmacies and labs by name, specialty and location.
The AI finds a provider by name and then reads the full record to compare specialties, addresses and identifiers with your own data.
The AI searches across individual name, organization name, NPI, specialty and location in any combination, when the two simple searches are too narrow.
You do not need an account or a key for NPPES NPI Registry. You log in with your email address and a 6-digit code.
The NPPES NPI Registry needs no credential.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"nppes-npi-registry": {
"url": "https://nppes-npi-registry.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"nppes-npi-registry": {
"type": "http",
"url": "https://nppes-npi-registry.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your email address and a 6-digit code. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+ | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this NPPES NPI Registry server only. Ask your AI to run nppes_npi_registry_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with nppes_npi_registry_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with nppes_npi_registry_upgrade before then undoes the cancel. Or write to [email protected].
nppes_lookup_npinppes_search_individualsnppes_search_organizationsnppes_searchnppes_npi_registry_usage_statusnppes_npi_registry_request_featurenppes_npi_registry_upgradenppes_npi_registry_cancel_subscriptionLook up a provider by NPI number. Find doctors or nurses by name, specialty and place. Find clinics, hospitals or pharmacies by name. Check a provider's specialty and practice address. Search the registry with mixed criteria. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by NPPES NPI Registry. The server calls the public NPPES NPI Registry API for you.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
Only an email address. You do not need a key for NPPES NPI Registry.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your email address and a 6-digit code. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
All 4 NPPES NPI Registry tools are marked read-only.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this NPPES NPI Registry server only. Cancel any time: your paid plan then runs to the end of the paid period. Run nppes_npi_registry_usage_status to see how many calls you used.
Ask the AI to run nppes_npi_registry_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run nppes_npi_registry_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with nppes_npi_registry_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.