Willy Trejo Gan, MD
Neurology Physician · Seattle, WA
Willy Trejo Gan, MD is a neurology physician with a practice address in Seattle, Washington, and NPI 1568101145, issued on Jun 1, 2022. Check the license (Washington MD.MD.70123807, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Willy Trejo Gan
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- MD.MD.70123807 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 520-5000
- Enumerated
- Jun 1, 2022
- Record last updated
- Jun 23, 2026
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 489 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Willy Trejo Gan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD.MD.70123807Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average neurology physician in 2024
33 Medicare Part D claims for 16 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Willy Trejo Gan among 489 neurology physician records in Washington
Willy Trejo Gan, MD is one of 489 neurology physician records with a practice address in Washington. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 98% of them.
- NPI issued2022 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Washington
There are 489 neurology physician records in Washington.
All 489 in Washington → Every provider in Seattle → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Rosalind Chuang, M.D.Seattle, WA 981951366558751
- Barbara DistadSeattle, WA 981951942385745
- Thomas Grabowski, MDSeattle, WA 981951033104252
- Lee-Loung Liou, MD, PHDSeattle, WA 981951013022151
- Natalia Murinova, M.D.Seattle, WA 981951548259237
- Shawn Murphy, MD PHDSeattle, WA 981951639160534
- Patricia Oakes, MDSeattle, WA 981951760582993
- Nicole PhillipsSeattle, WA 981951881709863
Common questions
What is Willy Trejo Gan, MD's NPI number?
Willy Trejo Gan, MD's National Provider Identifier (NPI) is 1568101145, issued on Jun 1, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Willy Trejo Gan, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Willy Trejo Gan, MD's license?
NPPES lists Washington license number MD.MD.70123807, 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.
How much does Willy Trejo Gan, MD prescribe under Medicare Part D?
In 2024, Willy Trejo Gan, MD had 33 Medicare Part D claims for 16 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
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.