NPPES file of Aug 9, 2026

William Kimball Mellor, M.D.

Family Medicine Physician · Colfax, WA

William Kimball Mellor, M.D. is a family medicine physician with a practice address in Colfax, Washington, and NPI 1144200460, issued on Jan 20, 2006. Check the license (Washington MD00024848, 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
1144200460
Name
William Kimball Mellor
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD00024848 WA
Self-reported in NPPES; status is on the state search
Practice location
1210 W Fairview St, Colfax, WA 99111
Phone
(509) 397-4717
Enumerated
Jan 20, 2006
Record last updated
Oct 14, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
1044718 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 1210 W Fairview St

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

  1. Gary Candelaria, D.O.Family Medicine Physician1972583722
  2. Morganne Hamann, PAMedical Physician Assistant1679308464
  3. Keith Haugen, M.D.Family Medicine Physician1104806959
  4. Mark Houghton, ARNPNurse Practitioner1760182984
  5. Bryan Johnson, M.D.Internal Medicine Physician1346220670
  6. Jeffrey Jones, M.D.Internal Medicine Physician1639159882

Verify William Kimball Mellor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00024848
    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 Colfax

They are 12 of the 69 NPPES records with a practice address in Colfax, 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 Kimball Mellor, M.D.'s NPI number?

William Kimball Mellor, M.D.'s National Provider Identifier (NPI) is 1144200460, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Kimball Mellor, M.D. located?

The NPPES record lists a practice address at 1210 W Fairview St, Colfax, WA, 99111. Phone: (509) 397-4717. Providers update this record themselves, so call before visiting.

How can I verify William Kimball Mellor, M.D.'s license?

NPPES lists Washington license number MD00024848, 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.