NPPES file of Aug 9, 2026

Sean O. Keenan, M.D.

Molecular Genetic Pathology (Pathology) Physician · Seattle, WA

Sean O. Keenan, M.D. is a molecular genetic pathology (pathology) physician with a practice address in Seattle, Washington, and NPI 1447519228, issued on May 14, 2012. Check the license (Washington MD60855729, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1447519228
Name
Sean O. Keenan
Credential
M.D.
Primary taxonomy
Molecular Genetic Pathology (Pathology) Physician 207ZP0007X
License number
MD60855729 WA
Self-reported in NPPES; status is on the state search
Practice location
1124 Columbia St Ste 200, Seattle, WA 98104
Phone
(206) 576-6050
Enumerated
May 14, 2012
Record last updated
Oct 1, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(206) 215-5935
Medicaid ID
2105814 WA
Medicare enrollment
Enrolled (PECOS I20181207001732); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1124 Columbia St Ste 200

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

  1. Kristen Basnet, MDAnatomic Pathology & Clinical Pathology Physician1689012304
  2. Anna Berry, MDAnatomic Pathology & Clinical Pathology Physician1528023348
  3. Jey-Hsin ChenAnatomic Pathology Physician1336263896
  4. Yuxin Lu, M.D.Anatomic Pathology & Clinical Pathology Physician1073808010
  5. Yanelba Toribio, M.D.Anatomic Pathology & Clinical Pathology Physician1043448178

Verify Sean O. Keenan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60855729    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Cellnetix Pathology PLLCSeattle, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Molecular Genetic Pathology (Pathology) Physician providers in Washington

There are 10 molecular genetic pathology (pathology) physician records in Washington.

All 10 in Washington → Every provider in Seattle →

Other molecular genetic pathology (pathology) physician records in Washington

  1. Hani El Achkar, MDSeattle, WA1184453292
  2. Ilan Kirsch, MDSeattle, WA1780378851
  3. Eric Konnick, MDSeattle, WA1609190446
  4. Regina Kwon, MD, MPHSeattle, WA1437684677
  5. Abbye McEwen, M.D.Seattle, WA1578954665
  6. Vera PaulsonSeattle, WA1366886624
  7. Colin Pritchard, MDSeattle, WA1457550022
  8. Charles Sailey, M.D.Vancouver, WA1568506947
  9. Leonid Yermakov, MD, PHDSeattle, WA1245818004

Common questions

What is Sean O. Keenan, M.D.'s NPI number?

Sean O. Keenan, M.D.'s National Provider Identifier (NPI) is 1447519228, issued on May 14, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Sean O. Keenan, M.D. located?

The NPPES record lists a practice address at 1124 Columbia St Ste 200, Seattle, WA, 98104. Phone: (206) 576-6050. Providers update this record themselves, so call before visiting.

How can I verify Sean O. Keenan, M.D.'s license?

NPPES lists Washington license number MD60855729, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.