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Washington License Verification API

Verify Washington providers in one call against the Washington Department of Health, with federal NPI and OIG screening built in.

Start free → 100 verifications
No credit card required. One API call returns license status, NPI identity, and OIG exclusion screening.

One call, normalized

Skip per-board formats and portals. Submit a provider, get a single clean JSON response.

Federal screening built in

NPPES identity and OIG exclusion checks run nationwide on every verification.

Signed certificate

Every check returns a tamper-evident, SHA-256 signed certificate, retained seven years.

Live Washington license data

VeriflowAPI verifies Washington professional licenses against the Washington Department of Health, returning physicians, nurses, and behavioral and allied health credentials. Every check also runs nationwide federal screening, so you get license status, NPI identity, and OIG exclusion in a single response.

Example request

# One call verifies license + NPI + OIG
POST https://api.veriflowapi.com/v1/verify

{
  "first_name": "Jane",
  "last_name": "Provider",
  "state": "WA"
}

# Response
{
  "verified": true,
  "status": "active",
  "state": "Washington",
  "license_number": "...",
  "expiry_date": "2027-05-31",
  "oig_excluded": false,
  "sources_checked": ["NPPES", "OIG", "Washington Department of Health"],
  "certificate_hash": "sha256_..."
}

FAQ

Does VeriflowAPI verify Washington medical licenses?

Yes. Washington is live today. We verify license status and expiry against the Washington Department of Health, plus nationwide NPPES and OIG screening on every check.

How current is the data?

Mirrored state data refreshes daily; live-scrape states are checked per query with a 24-hour cache. Each certificate records exactly when the source was read.

What does a failed check look like?

The response is explicit: status, oig_excluded, and disciplinary flags are separate fields, and unsupported states return an unsupported_state status rather than fabricated data.

Verify Washington providers in one call

Start with 100 free verifications. No credit card. Read the docs or explore coverage.

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