DirectoryMCP serversPayments & finance

NPI Who: MCP server (Payments & finance) in 2026

US health care providers by NPI, name or phone, with payments, Medicare, OIG and facility data.

Verified working on 2026-10-27 Rank 18 of 77 in Payments & finance. Source: MCP Registry record, checked 2026-10-27.

Key facts

TypeMCP server, remote (streamable HTTP)
CategoryPayments & finance
Endpointhttps://npiwho.com/mcp
Registry nameio.github.npiwho/npiwho
Version (registry)1.0.0
Published in registry2026-10-25
Registry record updated2026-10-25
Repositoryhttps://github.com/npiwho/mcp
Websitehttps://npiwho.com/developers/mcp
AuthenticationNone needed for initialize and tools/list (checked anonymously)
Latest checkUp on 2026-10-27, 209 ms to initialize
Tools listed6
Checks passed1 of 1 daily checks
Last verified working2026-10-27
Sourcehttps://registry.modelcontextprotocol.io/v0/servers/io.github.npiwho%2Fnpiwho/versions/latest (pulled 2026-10-27)

Tools (6)

lookup_provider, search_providers, lookup_phone, nearby_providers, list_facilities, data_sources

Verification history

One probe a day: initialize, then tools/list, nothing else. Last 1 checks: 10-27 up

Install

Claude Code
claude mcp add --transport http npiwho https://npiwho.com/mcp
Claude (claude.ai, Desktop)

Settings > Connectors > Add custom connector. Name: NPI Who. URL: https://npiwho.com/mcp

Cursor
{
  "mcpServers": {
    "npiwho": {
      "url": "https://npiwho.com/mcp"
    }
  }
}

Save as ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).

ChatGPT

Settings > Connectors > Advanced > Developer mode, then Create. Name: NPI Who. MCP server URL: https://npiwho.com/mcp. Authentication: No authentication.

Custom connectors need a plan with Developer mode; menu names change between releases.

Hermes Agent
mcp_servers:
  npiwho:
    url: "https://npiwho.com/mcp"

Add to ~/.hermes/config.yaml, then run /reload-mcp.

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NPI Who: MCP server (Payments & finance) in 2026 · Vibe Shipped