William Marshall
Physician Assistant · Everett, WA
William Marshall is a physician assistant with a practice address in Everett, Washington, and NPI 1427834779, issued on Sep 4, 2023. Check the license (Washington PA61605637, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Marshall
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA61605637 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3927 Rucker Ave, Everett, WA 98201
- Phone
- (206) 860-5414
- Enumerated
- Sep 4, 2023
- Record last updated
- May 2, 2026
- Medicare enrollment
- Enrolled (PECOS I20241218002356); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 3927 Rucker Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hamed Al-Ghanim, MDFamily Medicine Physician1124039938
- Wendi Alexander, ARNPNurse Practitioner1689757874
Verify William Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA61605637Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Optum Care Washington PLLCEverett, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Marshall among 3,718 physician assistant records in Washington
William Marshall is one of 3,718 physician assistant records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 88% of them.
- NPI issued2023 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2024 · median 2017 among the 2,460 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
144 physician assistant records list a practice address in Everett
They are 144 of the 7,246 NPPES records with a practice address in Everett, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Everett → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Wayne Bjur, PACEverett, WA 982011578596631
- Leslie Chamberlain, PA-CEverett, WA 982011386661080
- Edyth Collins, P.A.Everett, WA 982011982632220
- Margaret Heller, PACEverett, WA 982011457317141
- Robert Hutchinson, P.A.-CEverett, WA 982011346293107
- Timothy Jones, PA-CEverett, WA 982011245284561
- Jonathan Maher, PA-CEverett, WA 982011154373140
- Jude Patton, PA-CEverett, WA 982011417920810
Common questions
What is William Marshall's NPI number?
William Marshall's National Provider Identifier (NPI) is 1427834779, issued on Sep 4, 2023. An NPI identifies a provider in billing; it is not a license.
Where is William Marshall located?
The NPPES record lists a practice address at 3927 Rucker Ave, Everett, WA, 98201. Phone: (206) 860-5414. Providers update this record themselves, so call before visiting.
How can I verify William Marshall's license?
NPPES lists Washington license number PA61605637, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity 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.