How to Verify a Dental License in Washington Before You Hire

Washington splits the job in two.

The Dental Quality Assurance Commission (DQAC) — established by RCW 18.32.0351 — regulates dentists, while the Washington State Department of Health (DOH) issues and administers the credentials, and runs the online search you will actually use to verify them.

DOH credentials dental assistants, dental hygienists, dentists, expanded function dental auxiliaries (EFDAs), dental anesthesia assistants and dental therapists, each with its own profession page.

One wrinkle: dental hygienists are not governed by DQAC — hygiene is a separate DOH program, so hygiene credential questions go to DOH, not the Commission.

This page is the Washington chapter of our guide to how to verify a dental license — the national process lives there.

Here it's what Washington's own lookup shows, and which permits you confirm outside it.

The search is DOH's Provider Credential Search, which now runs in DOH's HELMS system; the Department says you can search by credential number, individual name or business name (the old search address redirects to the HELMS license search).

For a dentist hire, match the credential number on the application to the record, then read the detail page: since the March 24, 2026 HELMS launch, provider pages include credential-specific information such as endorsements and the count of open and closed enforcement cases.

Sedation is the separate check on the dentist side.

Washington dentists need a DQAC permit of authorization to administer moderate sedation with enteral agents, moderate sedation with parenteral agents, or deep sedation/general anesthesia — and a general anesthesia permit covers both moderate sedation levels without a separate permit.

Whether HELMS displays those permits as endorsements has not been confirmed, so ask a sedation-trained candidate for a copy of the permit and confirm it is current before you schedule sedation cases.

How a candidate earns a Washington license is the other side of the desk — our guide to dentist licensure requirements in Washington covers it.

Hygienists verify in the same search.

DOH credentials dental hygienists directly, so their record sits alongside a dentist's: run the same lookup and read the endorsements and enforcement counts the same way.

What you will not find behind a hygiene credential is DQAC — hygiene is a separate DOH program rather than a Commission-regulated profession, so hygiene questions go to DOH.

One caution: whether the search displays a hygienist's authorizations beyond the base credential was not confirmed in our research, so confirm any expanded-duty credential or permit with DOH rather than assuming the record shows it.

What Washington requires to become a hygienist, and what the license covers, is on our dental hygienist requirements in Washington page.

Assistants are registered through DOH (WAC 246-817-190), and the registration is what the search returns.

Washington's rules name no separate radiography credential to look up: under WAC 246-817-520, a supervising dentist may delegate placing, exposing and processing radiographs to a registered dental assistant under close supervision, provided the assistant has demonstrated the skills necessary to perform each task competently.

So for an assistant hire you verify the registration — the supervision and demonstrated competence are yours to confirm before the first x-ray.

The rest of the chairside team holds credentials of their own: DOH separately credentials expanded function dental auxiliaries, dental anesthesia assistants and dental therapists, each with its own profession page — so search each person rather than relying on one result for the room.

The dental anesthesia assistant credential carries a hard limit worth checking at hire: a dental anesthesia assistant may accept delegation only from an oral and maxillofacial surgeon or a dental anesthesiologist who holds a valid Washington general anesthesia permit.

If you hire one, the permit holder they will work under is part of the verification.

The full duty and delegation picture for Washington assistants is on our dental assistant requirements in Washington page.

Discipline is where Washington's search does real work.

DOH says the site provides true and correct copies of legal disciplinary actions taken after July 1998, unless prohibited by law — records it considers certified by the Department of Health.

Since the HELMS launch, provider pages also show the count of open and closed enforcement cases, so read it for every finalist, not just the candidates you have doubts about.

Board discipline also has a federal shadow.

When a state dental board acts on a dentist's professional competence or conduct — revoking, suspending or restricting a license, censuring, reprimanding, placing the dentist on probation, or accepting a license surrender — it must report the action to the National Practitioner Data Bank, and NPDB regulations count a state Board of Dentistry among its reporters.

A practice that cannot query the data bank directly still has a route: any practitioner can run a self-query, the NPDB does not send self-query responses to third parties, and the practitioner may share theirs with whomever they choose — so ask your dentist finalist for one.

Our guide to NPDB queries covers eligibility and the self-query in depth.

And for a candidate who has practiced outside Washington: licenses are issued and verified state by state — our research found no national dental license lookup — so run the other state's board lookup too.

Update speed varies board to board — save the last-updated date with your result.

A verification is only worth what you can prove.

For each credential — base license, sedation permit, assistant registration — save the date you ran the search, the name or credential number you entered, and a screenshot or PDF of what the provider page showed.

Run the check close to the start date rather than at first contact, and re-run it before you renew an employment agreement — a printout from two years ago says nothing about today.

Re-checking is cheap, too: DOH points employers with high-volume credential checks to the state Open Data Portal, which uses the same source information as the Provider Credential Search and is updated daily.

The license file folds into the rest of your screen: references, your other background checks, and the federal exclusion list — if your practice bills Medicaid or CHIP, a person excluded by HHS-OIG can receive no payment from federal health care programs, so our guide to OIG exclusion checks covers when and how.

Restrictive covenants come up at the same stage: if your associate is arriving from another Washington practice, check what the state allows before you draft — our guide to non-competes in Washington covers how the state treats them.