NPI provider/organization registry lookup API

Looks up real US healthcare providers and organizations in the NPPES registry by name (distinct from NPI check-digit validation): returns NPI, name, provider type, and practice city/state. Answers 'Find the NPI for Mayo Clinic', 'Look up provider by name'.

Price$0.01per request

MethodPOST

Route/v1/health/clinical-npi-lookup

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache86400s public

healthclinicalnpinppesproviderregistryhealthcarelookupnlm

API URLhttps://x402.hexl.dev/v1/health/clinical-npi-lookup

Integration docs

Example request

{
  "name": "mayo clinic",
  "type": "org",
  "max": 2
}

Example response

{
  "query": "mayo clinic",
  "type": "org",
  "totalMatches": 239,
  "returned": 2,
  "results": [
    {
      "npi": "1083249577",
      "name": "MAYO CLINIC",
      "city": "ROCHESTER",
      "state": "MN",
      "providerType": "Clinical Laboratory"
    },
    {
      "npi": "1164758868",
      "name": "MAYO CLINIC",
      "city": "ROCHESTER",
      "state": "MN",
      "providerType": "Hospice"
    }
  ],
  "disclaimer": "Informational reference/terminology data only — NOT medical advice. Verify against authoritative sources and a qualified professional before any clinical, billing, or treatment decision."
}

Input schema

{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "type": {
      "type": "string",
      "enum": [
        "individual",
        "org"
      ],
      "default": "individual"
    },
    "max": {
      "type": "integer",
      "minimum": 1,
      "maximum": 30,
      "default": 10
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}