NPPES file of Aug 9, 2026

William Lewis Dienst, M.D.

Family Medicine Physician · Tonasket, WA

William Lewis Dienst, M.D. is a family medicine physician with a practice address in Tonasket, Washington, and NPI 1942244223, issued on Jun 16, 2006. Check the license (Washington MD00025927, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942244223
Name
William Lewis Dienst
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD00025927 WA
Self-reported in NPPES; status is on the state search
Practice location
203 S. Western Avenue, Tonasket, WA 98855
Phone
(509) 486-2151
Enumerated
Jun 16, 2006
Record last updated
Jan 21, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(509) 486-3119
Medicaid ID
1017052 WA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 203 S. Western Avenue

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Priscilla Degraff, N.P.Nurse Practitioner1639157811

Verify William Lewis Dienst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00025927
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

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12 family medicine physician records list a practice address in Tonasket

They are 12 of the 83 NPPES records with a practice address in Tonasket, and 5,534 family medicine physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other family medicine physician records in Washington

  1. Shawn Aaron, MDLongview, WA1578560710
  2. John Abano, M.D.Shoreline, WA1891929857
  3. Sarah Abbot, DOKirkland, WA1033555180
  4. Arthur Abbott, M.D.Seattle, WA1255488847
  5. Dale Abbott, MDBurlington, WA1760453534
  6. Michael Abbott, MDEast Wenatchee, WA1336179928
  7. Richard Abbott, M.D.Mount Vernon, WA1689835803
  8. Charlee Abboud, DOTacoma, WA1174152169
  9. Suad AbdelazizSeattle, WA1306423421
  10. Joonis Abdulkhader, M.D.Seattle, WA1518154335

Common questions

What is William Lewis Dienst, M.D.'s NPI number?

William Lewis Dienst, M.D.'s National Provider Identifier (NPI) is 1942244223, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Lewis Dienst, M.D. located?

The NPPES record lists a practice address at 203 S. Western Avenue, Tonasket, WA, 98855. Phone: (509) 486-2151. Providers update this record themselves, so call before visiting.

How can I verify William Lewis Dienst, M.D.'s license?

NPPES lists Washington license number MD00025927, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.