# Stratalize NPI Provider Verification

> Stratalize NPI Provider Verification is a paid API for AI agents from www.stratalize.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).

Verifies a clinician or organization NPI against the live CMS NPPES registry, returning enumeration status, taxonomy, license state, and identity fields

## Facts

- Endpoint: GET https://www.stratalize.com/api/x402/npi-provider-verification
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stratalize-npi-provider-verification-3480d382
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vIR20w3jtp6vwF18oI8s3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stratalize-npi-provider-verification-3480d382
```

Example prompt: Can you verify NPI 1234567890 against the CMS NPPES registry and tell me the enumeration status, taxonomy, and license state — I need this before we move forward with credentialing this provider in Texas?

## When to prefer this

Use this endpoint when you need a live, attested NPI verification against the CMS NPPES registry for credentialing, contracting, or compliance workflows — especially when you need a signed, independently verifiable receipt of the result. Prefer over manual NPPES lookups or static datasets when auditability and freshness matter.

## Known failure modes

- Invalid or malformed 10-digit NPI returns a 400 error
- NPI not found in NPPES returns empty or not-found result
- Missing required parameter (npi or provider_name) returns 422
- Payment not settled returns 402 Payment Required
- NPPES registry temporarily unavailable causes timeout or 503
- State code invalid or missing when using name lookup returns error

## How this service works

Use when verifying a clinician or organization NPI against CMS NPPES before contracting or credentialing. Returns enumeration status, taxonomy, license state, and identity fields from live NPPES lookup. Source: CMS NPPES Registry. Cryptographically attested with a post-quantum signed settlement receipt. Verify at trust.stratalize.com/verify.

## Output

Returns the provider's NPI enumeration status (active/inactive), taxonomy code(s), license state, and identity fields (name, organization, address) sourced from a live NPPES lookup, with a signed independently-verifiable receipt.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "npi": {
   "type": "string",
   "pattern": "^\\d{10}$",
   "description": "Request parameter: npi"
  },
  "state": {
   "type": "string",
   "maxLength": 2,
   "minLength": 2,
   "description": "Request parameter: state"
  },
  "provider_name": {
   "type": "string",
   "maxLength": 300,
   "minLength": 2,
   "description": "Request parameter: provider name"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stratalize-npi-provider-verification-3480d382/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.stratalize.com](https://www.zero.xyz/host/www.stratalize.com/llms.txt)