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NPI Registry (CMS NPPES) on looot

NPI Registry (CMS NPPES) gives your agent 2 jobs through looot: get health provider registry, search health provider registry. 2 endpoints run today, some of them free.

For humansFor agents

Category: Other
Access: No key needed: these endpoints are open, looot calls them for you
Price: some of them free
Jobs: 2 jobs, 2 endpoints

Choose NPI Registry (CMS NPPES) when

You need to get health provider registry: NPI Registry (CMS NPPES) is the only provider on looot that runs this job today.
You need to search health provider registry: NPI Registry (CMS NPPES) is the only provider on looot that runs this job today.
You want to start without any key: some of its endpoints are open and looot calls them for you.

Endpoints and jobs

Each endpoint runs through looot today. Where a job has a benchmark page, its link compares every provider on that job.

Look up one healthcare provider by NPI number
health.provider.registry.get
free
100% of 11 runs without an error, median 363 ms
Search US healthcare providers by name, specialty and place
health.provider.registry.search
free
not enough runs to rank

A minimal request

For Look up one healthcare provider by NPI number (npi-registry-get), free. Replace each <placeholder> with your value and send a new idempotency key per run.

MCP

Call the looot MCP tool "run" with:
{
  "endpointId": "npi-registry-get",
  "input": {
    "number": "<number>"
  },
  "idempotencyKey": "<a new id per run>"
}

REST

curl -X POST https://api.looot.ai/v1/runs \
  -H "Authorization: Bearer $LOOOT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"endpointId":"npi-registry-get","input":{"number":"<number>"},"idempotencyKey":"<a new id per run>"}'

CLI

looot run npi-registry-get --input '{"number":"<number>"}'

Response shape

looot has no stored output format for this endpoint yet, so no response shape is shown here. Run it once and read the answer.

How we measure

Run numbers are looot's own runs of each endpoint over the last 30 days: the share that completed without an error, and the median time to answer. An endpoint with fewer than 10 runs in that window shows "not enough runs to rank" and is never ranked. Prices are what looot charges per call or per result, fee included, read from the live catalog; you prepay credit and each call is charged when it runs.

Read 2026-11-10 23:06 UTC.

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