William Sherwin Phipps, M.D.
Clinical Pathology/Laboratory Medicine Physician · Seattle, WA
William Sherwin Phipps, M.D. is a clinical pathology/laboratory medicine physician with a practice address in Seattle, Washington, and NPI 1376907345, issued on Apr 6, 2016. Check the license (Washington MD61021137, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- William Sherwin Phipps
- Credential
- M.D.
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- MD61021137 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 9TH Ave, Seattle, WA 98104
- Phone
- (206) 520-5000
- Enumerated
- Apr 6, 2016
- Record last updated
- May 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 1376907345 WA
- Medicare enrollment
- Enrolled (PECOS I20200512001535); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2016
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 58 in Washington → Look up another NPI →
Also registered at 325 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Aaf, PA-CMedical Physician Assistant1558394171
- Sheida Aalami, M.D.Internal Medicine Physician1730573296
- Collette AbbottHospitalist Physician1306208293
- Akrm Abdalrahman, MD, MSCritical Care Medicine (Anesthesiology) Physician1801374905
- Martin Abdo, COUNSELORCounselor1821202904
- Nauzley Abedini, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1043637408
Verify William Sherwin Phipps in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61021137Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Sherwin Phipps among 58 clinical pathology/laboratory medicine physician records in Washington
William Sherwin Phipps, M.D. is one of 58 clinical pathology/laboratory medicine physician records with a practice address in Washington. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 17% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2016 · median 2009 among the 24 with a school on file
- Record last updated2020 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in Washington
There are 58 clinical pathology/laboratory medicine physician records in Washington.
All 58 in Washington → Every provider in Seattle → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- Maryam Asif, MBBSSeattle, WA 981041578099552
- Geoffrey Baird, MD, PHDSeattle, WA 981041407868953
- Thomas Ma, MDSeattle, WA 981041689171563
- Maria TretiakovaSeattle, WA 981041427341791
- Cristina Figueroa Villalba, MDSeattle, WA 981051427631811
- Marla Fenske, MDSeattle, WA 981011962427831
- Christopher Gault, M.D.Seattle, WA 981011437412590
- Donald Guinee, MDSeattle, WA 981011427079128
Common questions
What is William Sherwin Phipps, M.D.'s NPI number?
William Sherwin Phipps, M.D.'s National Provider Identifier (NPI) is 1376907345, issued on Apr 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Sherwin Phipps, M.D. located?
The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify William Sherwin Phipps, M.D.'s license?
NPPES lists Washington license number MD61021137, 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.
What is William Sherwin Phipps, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.