# `io.usefulapi/nppes-npi-registry` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/io.usefulapi/nppes-npi-registry
- JSON: https://anlyon.dev/api/v1/servers/io.usefulapi/nppes-npi-registry
- Version: 1.16.3 (active)
- Publisher: io.usefulapi (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Repository: https://github.com/m190/usefulapi-mcp
- Metadata from the official MCP Registry, synced 2026-10-21T19:23:31.915Z

Title and description, as the publisher wrote them:

```untrusted-server-text
NPPES NPI Registry MCP by usefulapi
Look up US healthcare providers and organisations by NPI.
```

Scanned 2026-10-21T19:41:09.194Z over streamable-http.

**4 tools: 4 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 0 | ask |
| Only reads | read | 4 | allow |

## Findings

No check matched anything in these tool definitions.


## Only reads (4)

Looks things up and changes nothing. Claude Code: allow.

### `nppes_lookup_npi`

- The name "nppes_lookup_npi" says "lookup": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Look up a single healthcare provider by their exact 10-digit National Provider Identifier (NPI). Returns the full registry record: basic info, addresses, taxonomies/specialties, identifiers and other names. NPPES Read API v2.1.
```

### `nppes_search`

- The name "nppes_search" says "search": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Full-power search of the NPPES NPI Registry across ANY combination of criteria — individual name, organization name, NPI number, taxonomy/specialty, and location. Use nppes_search_individuals / nppes_search_organizations for the common cases; use this when you need mixed or advanced criteria. The API requires at least one meaningful search parameter. NPPES Read API v2.1.
```

### `nppes_search_individuals`

- The name "nppes_search_individuals" says "search": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Search for INDIVIDUAL healthcare providers (NPI-1: doctors, nurses, therapists, etc.) by name, specialty (taxonomy) and/or location. Provide at least one meaningful criterion beyond a location. Name fields support a trailing '*' wildcard (min 2 chars before it). NPPES Read API v2.1.
```

### `nppes_search_organizations`

- The name "nppes_search_organizations" says "search": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Search for ORGANIZATION healthcare providers (NPI-2: hospitals, clinics, group practices, pharmacies, labs, etc.) by organization name, specialty (taxonomy) and/or location. The organization_name field supports a trailing '*' wildcard (min 2 chars before it). NPPES Read API v2.1.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `nppes-npi-registry`:

```json
{
  "permissions": {
    "allow": [
      "mcp__nppes-npi-registry__nppes_lookup_npi",
      "mcp__nppes-npi-registry__nppes_search_individuals",
      "mcp__nppes-npi-registry__nppes_search_organizations",
      "mcp__nppes-npi-registry__nppes_search"
    ],
    "ask": [],
    "deny": []
  }
}
```