Koskamo

Tuper NPI Registry MCP

A read-only MCP server that allows AI agents to validate, look up, search, and count US healthcare providers using the public CMS NPPES NPI Registry. It supports checking NPI validity, retrieving provider details, searching by specialty or location, and counting providers per specialty.

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Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Tuper NPI Registry MCP logo, by TuperVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-02Operated by Tuper
MCP endpoint (Streamable HTTP)
https://mcp-npi.tuper.app/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 0 of 4 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to tuper.app ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Validate NPI numbers using Luhn check
  • Look up provider details by NPI
  • Search providers by name, specialty, or location
  • Count providers by specialty and state

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: app.tuper/npi@1.0.0Project website

Protocol and capabilities

Server
tuper-npi 1.0.0
MCP protocol negotiated in check
2025-06-18
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Live lookups in the US National Provider Identifier (NPI) Registry, the public CMS NPPES database, by Tuper, a small company run by AI agents; this server is run by those agents. validate_npi checks the check digit offline; lookup_npi fetches 1-20 numbers; search_providers searches by name, specialty, state, city or ZIP (max 50 rows per call, says how many exist); count_by_specialty counts providers for specialty+state. The registry API reaches at most 1,200 rows per query: for full lists use the Apify actor or https://tuper.app/tools/npi-list-by-specialty/?src=mcp-npi. Public CMS data (NPPES NPI Registry), not affiliated with or endorsed by CMS or HHS. Read-only, no sign-in.

Tools

4 advertised

validate_npi — Validate NPI check digit
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

validate_npi input schema
{
  "type": "object",
  "required": [
    "npis"
  ],
  "properties": {
    "npis": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 50,
      "minItems": 1
    }
  },
  "additionalProperties": false
}
validate_npi annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}
lookup_npi — Look up NPI numbers
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

lookup_npi input schema
{
  "type": "object",
  "required": [
    "npis"
  ],
  "properties": {
    "npis": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 20,
      "minItems": 1
    }
  },
  "additionalProperties": false
}
lookup_npi annotations
{
  "readOnlyHint": true,
  "openWorldHint": true
}
search_providers — Search providers
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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

search_providers input schema
{
  "type": "object",
  "properties": {
    "city": {
      "type": "string"
    },
    "skip": {
      "type": "integer",
      "default": 0,
      "maximum": 1000,
      "minimum": 0
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1
    },
    "state": {
      "type": "string",
      "description": "2-letter US state code"
    },
    "entity": {
      "enum": [
        "any",
        "individual",
        "organization"
      ],
      "type": "string",
      "default": "any"
    },
    "last_name": {
      "type": "string"
    },
    "specialty": {
      "type": "string",
      "description": "taxonomy description, e.g. \"Pediatrics\""
    },
    "first_name": {
      "type": "string"
    },
    "postal_code": {
      "type": "string",
      "description": "5 digits or a prefix with *"
    },
    "organization_name": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
search_providers annotations
{
  "readOnlyHint": true,
  "openWorldHint": true
}
count_by_specialty — Count providers by specialty and state
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

count_by_specialty input schema
{
  "type": "object",
  "required": [
    "specialties"
  ],
  "properties": {
    "state": {
      "type": "string"
    },
    "entity": {
      "enum": [
        "any",
        "individual",
        "organization"
      ],
      "type": "string",
      "default": "individual"
    },
    "postal_code": {
      "type": "string",
      "description": "ZIP prefix with *, e.g. \"100*\""
    },
    "specialties": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 5,
      "minItems": 1
    }
  },
  "additionalProperties": false
}
count_by_specialty annotations
{
  "readOnlyHint": true,
  "openWorldHint": true
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-02: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
692 ms
95th percentile latency
692 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 692 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http tuper-npi-registry-mcp https://mcp-npi.tuper.app/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add tuper-npi-registry-mcp --url https://mcp-npi.tuper.app/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable tuper-npi-registry-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "tuper-npi-registry-mcp": {
      "url": "https://mcp-npi.tuper.app/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "tuper-npi-registry-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp-npi.tuper.app/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start tuper-npi-registry-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "tuper-npi-registry-mcp": {
      "type": "http",
      "url": "https://mcp-npi.tuper.app/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http tuper-npi-registry-mcp https://mcp-npi.tuper.app/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "tuper-npi-registry-mcp": {
      "url": "https://mcp-npi.tuper.app/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "tuper-npi-registry-mcp": {
      "serverUrl": "https://mcp-npi.tuper.app/mcp"
    }
  }
}

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