Tuper NPI Registry MCP Server

by tuper Your server? Claim it

answering

Tuper NPI Registry is answering right now. Last checked 11 min ago. It exposes 4 tools.

Validate, look up and count US NPI providers from the public CMS registry; not affiliated with CMS.

Uptime history 30 hours of history

30 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

161 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Tuper NPI Registry every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add npi --transport http https://mcp-npi.tuper.app/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp-npi.tuper.app/mcp

~/.codex/config.toml

[mcp_servers.npi]
url = "https://mcp-npi.tuper.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "npi": {
      "url": "https://mcp-npi.tuper.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "npi": {
      "type": "http",
      "url": "https://mcp-npi.tuper.app/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

count

count_by_specialty

How many providers does the NPI Registry list for a specialty, optionally in a state or ZIP prefix? Exact up to 1,200; beyond that it says "1200+" and points to the full-list route. Up to 5 specialties per call.

lookup

lookup_npi

Fetch 1-20 providers by NPI number from the live CMS NPI Registry: name, credential, status, primary specialty (taxonomy), practice address and phone. Check digits are validated first; invalid and unknown numbers are reported separately.

providers

search_providers

Search the live NPI Registry by first/last name, organization name, specialty (taxonomy description as the registry writes it, e.g. "Family Medicine", "Dentist"), state (2 letters), city or ZIP. Needs at least one of name, organization, specialty, city or ZIP (a state alone is refused by CMS). Returns up to 50 rows and how many exist (capped at 1,200). Full lists beyond that: https://tuper.app/tools/npi-list-by-specialty/?src=mcp-npi

validate

validate_npi

Offline check of up to 50 NPI numbers: 10 digits and the Luhn check digit (prefix 80840). Does not call CMS, so it cannot say whether the number is issued; use lookup_npi for that.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp-npi.tuper.app/mcp	streamable-http	answering	170 ms	11 min ago

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Tuper NPI Registry — questions

Answers built from our own checks of this server.

What can Tuper NPI Registry do?

It exposes 4 tools, read directly from the server on our last check. Among them: count_by_specialty, lookup_npi, search_providers, validate_npi. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Tuper NPI Registry working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 161 ms. The bar chart above shows every period we have measured.

How do I connect Tuper NPI Registry?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Tuper NPI Registry need an API key?

No. Tuper NPI Registry completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Tuper NPI Registry?

It answers our handshake in 161 ms on average, which is faster than 83% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.