NPPES file of Aug 9, 2026

Patrick S. Chan, M.D.

Anesthesiology Physician · Seattle, WA

Patrick S. Chan, M.D. is an anesthesiology physician with a practice address in Seattle, Washington, and NPI 1780973594, issued on Apr 1, 2011. Check the license (Washington ML60222323, 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
1780973594
Name
Patrick S. Chan
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
ML60222323 WA
Self-reported in NPPES; status is on the state search
Practice location
1959 NE Pacific St, Seattle, WA 98195
Phone
(206) 543-2773
Enumerated
Apr 1, 2011
Record last updated
Aug 3, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20151209003125); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2011
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.
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Also registered at 1959 NE Pacific St

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

  1. Benjamin AaronsonPsychologist1497108880
  2. Laith Abandeh, MDPediatric Radiology Physician1609404243
  3. Rebecca AbayInternal Medicine Physician1528565520
  4. Gifti Abbo, MDStudent in an Organized Health Care Education/Training Program1316688989
  5. Nandini AbburiNeurology Physician1730618349
  6. Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656

Verify Patrick S. Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license ML60222323
    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.

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Bills Medicare through one group practice

  1. Pacific Anesthesia PCEdmonds, WA

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

Patrick S. Chan among 1,701 anesthesiology physician records in Washington

Patrick S. Chan, M.D. is one of 1,701 anesthesiology physician records with a practice address in Washington. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.

  • NPI issued2011 · 67% of these records are older, 31% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2011 · median 2007 among the 1,103 with a school on file
  • Record last updated2011 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

694 anesthesiology physician records list a practice address in Seattle

They are 694 of the 41,956 NPPES records with a practice address in Seattle, and 1,701 anesthesiology physician records in Washington.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Aparna Ananth, M.D.Seattle, WA 981951477590909
  2. Michael Bialos, MDSeattle, WA 981951245212703
  3. Todd Cannon, MDSeattle, WA 981951497868749
  4. Charles Crowder, MD, PHDSeattle, WA 981951063430585
  5. Chi Dau, MDSeattle, WA 981951134234842
  6. Denise Joffe, M.D.Seattle, WA 981951437196052
  7. Raymond Kwik, MDSeattle, WA 981951285743898
  8. John Lang, MDSeattle, WA 981951790713840

Common questions

What is Patrick S. Chan, M.D.'s NPI number?

Patrick S. Chan, M.D.'s National Provider Identifier (NPI) is 1780973594, issued on Apr 1, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Patrick S. Chan, M.D. located?

The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 543-2773. Providers update this record themselves, so call before visiting.

How can I verify Patrick S. Chan, M.D.'s license?

NPPES lists Washington license number ML60222323, 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.

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.