Glossary

Primary-source license verification

Primary-source license verification means confirming a clinician's license directly with the issuing authority — the state licensing board and federal registries — rather than trusting a self-reported claim.

How it works

Verification checks the license number, status, and class against the state board and cross-checks identity against the NPPES NPI registry. The check is dated, so the claim has a knowable freshness.

Why it matters when choosing a therapist

Self-reported credentials can be outdated, lapsed, or overstated. A primary-source check with a date is the difference between 'they say they're licensed' and 'their license was confirmed with the board on this date.'

Informational, not legal, medical, or clinical advice — for guidance about your situation, consult a licensed professional. If you're in crisis, call or text 988 — free, 24/7. Text HOME to 741741 to reach a crisis counselor. In an emergency, call 911.

Related: NPI / NPPES · Last-verified date

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Last reviewed 2026-06-25.

Primary-source license verification — what it means | Kairn glossary · Kairn