Koskamo

NPILayer MCP

An official MCP server provided by NPILayer that enables AI agents like ChatGPT and Claude to query U.S. healthcare provider data. It supports looking up providers by NPI, searching by name or specialty, and finding providers near a specific location using ZIP codes or coordinates, leveraging CMS NPPES data.

Visit NPILayer

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.

NPILayer MCP logo, by NPILayerVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by NPILayer
You need:Log into your NPILayer account (or create one — the free plan needs no credit card)Get a key from your dashboard the same way you would for the REST APIproviders_near — the geographic search — always requires a credential, either kind
MCP endpoint (Streamable HTTP)
https://npilayer.com/mcp
Vendor documentation

What its tools do

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

Read-only (3)

3 of 3 have a description · 3 of 3 declare behavior hints · 1 of 3 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 npilayer.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Look up a single provider by 10-digit NPI
  • Search providers by name, location, or specialty
  • Find providers within a radius of a ZIP code

Source and maintenance

Vendor evidenceRegistry 1.0.1
mcp-registry: com.npilayer/npilayer@1.0.1Project website

Protocol and capabilities

Server
npilayer 1.0.0
MCP protocol negotiated in check
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {}
}

Server-provided instructions

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

NPILayer exposes U.S. healthcare provider data from the public CMS NPPES dataset: lookup_npi, search_providers, and providers_near. An NPI record identifies a provider or organization; it does not indicate licensure, credentialing, network participation, insurance acceptance, or that a provider is currently practicing at a listed location. For deeper integration (authentication, rate limits, full endpoint reference), see https://npilayer.com/docs/.

Tools

3 advertised

lookup_npi — Look up an NPI
Advertised by the server during the last successful anonymous check.
Advertised read-only

Look up a single U.S. healthcare provider or organization by its 10-digit National Provider Identifier (NPI), from CMS NPPES data. An NPI record identifies a provider; it does not indicate licensure, credentialing, network participation, or current practice status.

lookup_npi input schema
{
  "type": "object",
  "required": [
    "npi"
  ],
  "properties": {
    "npi": {
      "type": "string",
      "pattern": "^[0-9]{10}$",
      "description": "A 10-digit National Provider Identifier, e.g. \"1932586781\"."
    }
  },
  "additionalProperties": false
}
lookup_npi output schema
{
  "type": "object",
  "required": [
    "data",
    "meta"
  ],
  "properties": {
    "data": {
      "type": [
        "object",
        "null"
      ],
      "properties": {
        "npi": {
          "type": "string"
        },
        "name": {
          "type": [
            "object",
            "null"
          ],
          "description": "Set for individuals only."
        },
        "status": {
          "enum": [
            "active",
            "deactivated"
          ],
          "type": "string"
        },
        "entity_type": {
          "enum": [
            "individual",
            "organization"
          ],
          "type": "string"
        },
        "last_updated": {
          "type": [
            "string",
            "null"
          ]
        },
        "enumeration_date": {
          "type": [
            "string",
            "null"
          ]
        },
        "practice_address": {
          "type": [
            "object",
            "null"
          ]
        },
        "primary_taxonomy": {
          "type": [
            "object",
            "null"
          ]
        },
        "deactivation_date": {
          "type": [
            "string",
            "null"
          ]
        },
        "organization_name": {
          "type": [
            "string",
            "null"
          ],
          "description": "Set for organizations only."
        }
      }
    },
    "meta": {
      "type": "object",
      "properties": {
        "source": {
          "type": "string"
        }
      }
    }
  }
}
lookup_npi annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
search_providers — Search providers
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search U.S. healthcare providers and organizations by name, location, or specialty, from CMS NPPES data. Provide at least one filter; an empty search returns an arbitrary page of providers rather than a meaningful result.

search_providers input schema
{
  "type": "object",
  "required": [],
  "properties": {
    "zip": {
      "type": "string"
    },
    "city": {
      "type": "string"
    },
    "name": {
      "type": "string",
      "description": "Matches first name, last name, or organization name."
    },
    "page": {
      "type": "integer",
      "default": 1,
      "minimum": 1
    },
    "limit": {
      "type": "integer",
      "default": 25,
      "maximum": 100,
      "minimum": 1
    },
    "state": {
      "type": "string",
      "description": "Two-letter state code, e.g. \"MI\"."
    },
    "taxonomy": {
      "type": "string",
      "description": "An exact NUCC taxonomy code, e.g. \"207RC0000X\"."
    },
    "last_name": {
      "type": "string"
    },
    "specialty": {
      "type": "string",
      "description": "A plain-language specialty, e.g. \"cardiology\"."
    },
    "first_name": {
      "type": "string"
    },
    "entity_type": {
      "enum": [
        "individual",
        "organization"
      ],
      "type": "string"
    },
    "organization": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
search_providers output schema
{
  "type": "object",
  "required": [
    "data",
    "meta"
  ],
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "npi": {
            "type": "string"
          },
          "city": {
            "type": [
              "string",
              "null"
            ]
          },
          "name": {
            "type": "string"
          },
          "state": {
            "type": [
              "string",
              "null"
            ]
          },
          "status": {
            "type": "string"
          },
          "specialty": {
            "type": [
              "string",
              "null"
            ]
          },
          "entity_type": {
            "type": "string"
          }
        }
      }
    },
    "meta": {
      "type": "object",
      "properties": {
        "page": {
          "type": "integer"
        },
        "count": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        },
        "has_more": {
          "type": "boolean"
        }
      }
    }
  }
}
search_providers annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
providers_near — Find providers near a location
Advertised by the server during the last successful anonymous check.
Advertised read-only

Find U.S. healthcare providers within a radius of a ZIP code or coordinate, from CMS NPPES data. Provide either "zip", or both "lat" and "lng". Distance is measured from each provider's primary practice location to the ZIP centroid (not an exact street address), since NPILayer's geography is ZIP-based.

providers_near input schema
{
  "type": "object",
  "required": [],
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude, used with \"lng\" instead of \"zip\"."
    },
    "lng": {
      "type": "number",
      "description": "Longitude, used with \"lat\" instead of \"zip\"."
    },
    "zip": {
      "type": "string",
      "description": "A 5-digit ZIP code to search around."
    },
    "page": {
      "type": "integer",
      "default": 1,
      "minimum": 1
    },
    "limit": {
      "type": "integer",
      "default": 25,
      "maximum": 100,
      "minimum": 1
    },
    "radius": {
      "type": "number",
      "default": 25,
      "description": "Radius in miles."
    },
    "taxonomy": {
      "type": "string",
      "description": "An exact NUCC taxonomy code, e.g. \"207RC0000X\"."
    },
    "specialty": {
      "type": "string",
      "description": "A plain-language specialty, e.g. \"cardiology\"."
    },
    "entity_type": {
      "enum": [
        "individual",
        "organization"
      ],
      "type": "string",
      "description": "Restrict to individual providers or organizations, e.g. to exclude group practices from \"find a cardiologist\" results."
    }
  },
  "additionalProperties": false
}
providers_near output schema
{
  "type": "object",
  "required": [
    "data",
    "meta"
  ],
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "npi": {
            "type": "string"
          },
          "city": {
            "type": [
              "string",
              "null"
            ]
          },
          "name": {
            "type": "string"
          },
          "state": {
            "type": [
              "string",
              "null"
            ]
          },
          "status": {
            "type": "string"
          },
          "specialty": {
            "type": [
              "string",
              "null"
            ]
          },
          "entity_type": {
            "type": "string"
          },
          "distance_miles": {
            "type": "number"
          }
        }
      }
    },
    "meta": {
      "type": "object",
      "properties": {
        "page": {
          "type": "integer"
        },
        "count": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        },
        "center": {
          "type": "object"
        },
        "radius_miles": {
          "type": "number"
        }
      }
    }
  }
}
providers_near annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

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 (2 of 2 answered).

  1. 2026-11-07: 2 of 2 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
729 ms
95th percentile latency
729 ms

Maintenance history

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

  • · probe · passed · 729 ms · metadata changed · 3 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 npilayer-mcp https://npilayer.com/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 npilayer-mcp --url https://npilayer.com/mcp

Cursor

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

Cline

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

VS Code

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

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://npilayer.com/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": {
    "npilayer-mcp": {
      "serverUrl": "https://npilayer.com/mcp"
    }
  }
}

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