MCP Healthcare Server

A Model Context Protocol (MCP) server that bundles healthcare data tools for use with Claude Desktop, Cursor, and other MCP clients.

Tools (10 total)

ICD-10-CM Diagnosis Codes (74,260 codes from CMS 2025)

| Tool | Description | |------|-------------| | icd10_lookup | Look up an ICD-10-CM code by code string (e.g., E11.9) | | icd10_search | Search codes by keyword (e.g., "diabetes", "chest pain") | | icd10_validate | Check if a code exists in the 2025 code set |

NPI Provider Registry (live NPPES queries)

| Tool | Description | |------|-------------| | npi_search | Search providers by name, specialty, city, state, ZIP | | npi_lookup | Look up a provider by 10-digit NPI number |

NDC Drug Directory (111,655 FDA products)

| Tool | Description | |------|-------------| | ndc_lookup | Look up a drug by NDC code (e.g., 0002-1433-80) | | ndc_search | Search drugs by name, generic name, or manufacturer | | ndc_search_ingredient | Search drugs by active ingredient |

DEA Number Validation (algorithm-based)

| Tool | Description | |------|-------------| | dea_validate | Validate a DEA number using the official checksum algorithm | | dea_generate_test | Generate a valid test DEA number for development |

Setup

Prerequisites

• Node.js 18+
• The ICD-10 and NDC data files from sibling API directories

Install

cd mcp-healthcare
npm install
npm run link-data   # creates symlinks to ICD-10 and NDC data files

Claude Desktop Configuration

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "healthcare": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-healthcare/src/index.js"]
    }
  }
}

Cursor Configuration

Add to .cursor/mcp.json in your project:

{
  "mcpServers": {
    "healthcare": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-healthcare/src/index.js"]
    }
  }
}

Data Sources

| Dataset | Source | Update Frequency | |---------|--------|-----------------| | ICD-10-CM | CMS (Centers for Medicare & Medicaid) | Annually (October) | | NDC | FDA National Drug Code Directory | Weekly | | NPI | NPPES Registry (live API) | Real-time | | DEA | Checksum algorithm (no dataset) | N/A |

Transport

This server uses stdio transport (stdin/stdout), which is the standard for local MCP integrations with Claude Desktop and Cursor. No HTTP server is started.

Architecture

The server imports pure business logic extracted from four Express-based REST APIs:

• src/tools/icd10.js — ICD-10 code lookup, search, validation (loads 6MB JSON dataset)
• src/tools/ndc.js — NDC drug lookup and search (loads 53MB JSON dataset)
• src/tools/npi.js — NPI provider search via live NPPES API
• src/tools/dea.js — DEA number validation (pure algorithm, no dataset)

Data files are symlinked from sibling API directories to avoid duplication.