Look up US healthcare providers and organisations by NPI. Hosted by usefulapi — connect from Claude, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
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"
}
}
}Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
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.
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.
Turn on the NPPES NPI Registry connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
nppes_lookup_npi | read | Look up a provider by NPI number Look up a single healthcare provider by their exact 10-digit National Provider Identifier (NPI). Returns the full registry record: basic info, addresses, taxonomies/specialties, identifiers and other names. NPPES Read API v2.1. |
nppes_search_individuals | read | Search individual providers Search for INDIVIDUAL healthcare providers (NPI-1: doctors, nurses, therapists, etc.) by name, specialty (taxonomy) and/or location. Provide at least one meaningful criterion beyond a location. Name fields support a trailing '*' wildcard (min 2 chars before it). NPPES Read API v2.1. |
nppes_search_organizations | read | Search organization providers Search for ORGANIZATION healthcare providers (NPI-2: hospitals, clinics, group practices, pharmacies, labs, etc.) by organization name, specialty (taxonomy) and/or location. The organization_name field supports a trailing '*' wildcard (min 2 chars before it). NPPES Read API v2.1. |
nppes_search | read | Search the NPI registry (all criteria) Full-power search of the NPPES NPI Registry across ANY combination of criteria — individual name, organization name, NPI number, taxonomy/specialty, and location. Use nppes_search_individuals / nppes_search_organizations for the common cases; use this when you need mixed or advanced criteria. The API requires at least one meaningful search parameter. NPPES Read API v2.1. |
nppes_npi_registry_usage_status | Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter. | |
nppes_npi_registry_request_feature | Request a missing feature Tell usefulapi that the user needs something the NPPES NPI Registry tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. | |
nppes_npi_registry_upgrade | Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED NPPES NPI Registry tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Does not count against the meter. | |
nppes_npi_registry_cancel_subscription | Cancel the Pro subscription Cancel the caller's NPPES NPI Registry Pro subscription at the end of the paid period (no refund for the current period; unlimited calls continue until then, then the free tier applies). Requires confirm: true. Run nppes_npi_registry_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 100 tool calls / month |
| Pro | $9/mo · $90/yr | Unlimited |
Pro covers this NPPES NPI Registry server only. Subscribe with nppes_npi_registry_upgrade (it returns a Stripe Checkout link). Cancel any time with nppes_npi_registry_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running nppes_npi_registry_upgrade before then undoes the cancel. Or write to [email protected].
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.
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 100 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls, for this NPPES NPI Registry server only. Run nppes_npi_registry_usage_status to see how many calls you used.
Ask the AI to run nppes_npi_registry_upgrade: it returns a Stripe Checkout link. To cancel, run nppes_npi_registry_cancel_subscription. Pro 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, 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.