# FindADoctor.si · United States

Find US doctors with evidence your AI agent can check. Search by condition, procedure and location, then review the sources and dates behind each doctor through MCP or the HTTP API.

No sign-up. Short lists are free; full evidence has a daily allowance.

> **Not medical advice.** In an emergency, call 911.

## Connect your agent

- MCP (Streamable HTTP): `https://api.findadoctor.si/mcp`. The same address serves New Zealand: decide the country first, then pass `country` (`US` or `NZ`) when searching; left out, it is the United States.
- HTTP API: `GET https://api.findadoctor.si/api/v1/search`, described in [openapi.json](https://api.findadoctor.si/openapi.json)
- MCP server card: [https://api.findadoctor.si/mcp/server-card](https://api.findadoctor.si/mcp/server-card)
- In Claude: Customize → Connectors → + Add → Add custom connector, paste the MCP URL ([Claude's guide](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp)). In ChatGPT, where your plan and workspace allow it: Plugins → + → Add custom MCP server ([OpenAI's guide](https://developers.openai.com/plugins/deploy/connect-chatgpt)). Sign-in details: [Quickstart](/us/docs/).
- How to use the service, for agents: [/llms.txt](/llms.txt)
- Full documentation: [/us/docs/](/us/docs/) ([Markdown](/us/docs/index.md))

Tools:

- `search_doctors`
- `get_doctor`
- `lookup_terms`
- `list_procedures`
- `list_specialties`
- `about_database`

## What's inside

- about 1.2 million US physicians in the federal NPI registry, with specialty and practice locations.
- 81 procedure groups with Medicare 2024 volumes, ranked against other doctors' Medicare volumes.
- about 280,000 doctors with facts from their hospital system's own website; what each page lists varies. For about 82,000 of them the page lists focus areas, shown as standard MeSH terms.

Sources: U.S. federal registries and CMS Medicare files, plus facts from doctors' own hospital-website profiles. Data version public-2026-10-13.2. Coverage by field: [data page](/us/docs/data/).

## How an agent uses it

1. **Search** with `search_doctors`: a free short list for a condition, procedure or place, with what the evidence holds for each doctor.
2. **Open the evidence** with `get_doctor`: focus as standard MeSH terms, Medicare procedure volumes and their ranks, Medicare opt-out and exclusion warnings. Each different doctor opened counts toward a daily allowance.
3. **Confirm with the practice** by phone or on the practice's site: insurance, new-patient status and the booking number are confirmed there, not here.

## What it is not

- **Not a quality rating.** Results are ordered by evidence of focus and experience, such as Medicare volumes, not by outcomes. No private ratings or rankings are used. Details: [data page](/us/docs/data/).
- **Insurance is not checked here.** Insurer lists from hospital pages are shown as leads to confirm.
- **Facts are dated.** Evidence lines name their source and date. Call before you go.

## For agents reading this page

- [/llms.txt](/llms.txt): how to use the service, in Markdown
- [openapi.json](https://api.findadoctor.si/openapi.json): HTTP API, OpenAPI 3.1, with parameters and response fields
- [MCP server card](https://api.findadoctor.si/mcp/server-card)
- [/.well-known/ai-catalog.json](/.well-known/ai-catalog.json): this domain's agent entry points
- [/.well-known/api-catalog](/.well-known/api-catalog): API catalog (RFC 9727)
- Every page has a Markdown version at `index.md` under its address.

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Web page: https://findadoctor.si/us/ · FindADoctor.si · data version public-2026-10-13.2 · Not medical advice; in an emergency, call 911.