William A. Hagopian, MD
Endocrinology, Diabetes & Metabolism Physician · Seattle, WA
William A. Hagopian, MD is an endocrinology, diabetes & metabolism physician with a practice address in Seattle, Washington, and NPI 1841380706, issued on Oct 13, 2006. Check the license (Washington MD00026590, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- William A. Hagopian
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- MD00026590 WA
Self-reported in NPPES; status is on the state search - Practice location
- University OF Washington Medical Ctr, Seattle, WA 98195
- Phone
- (206) 598-4882
- Enumerated
- Oct 13, 2006
- Record last updated
- Sep 5, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 1841380706 WA
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 224 in Washington → Look up another NPI →
Also registered at University OF Washington Medical Ctr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William A. Hagopian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00026590Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $6,296.30
8 payments; by number, the most common kind was travel and lodging; the largest payer was Sanofi-Aventis U.S. LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William A. Hagopian among 224 endocrinology, diabetes & metabolism physician records in Washington
William A. Hagopian, MD is one of 224 endocrinology, diabetes & metabolism physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Washington
There are 224 endocrinology, diabetes & metabolism physician records in Washington.
All 224 in Washington → Every provider in Seattle → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- William Bremner, MDSeattle, WA 981951518042316
- Peter CapellSeattle, WA 981951245315043
- Alan ChaitSeattle, WA 981951932299898
- Nicole Ehrhardt, M.D.Seattle, WA 981951558467506
- Richard FailorSeattle, WA 981951831289784
- Karen Foster-SchubertSeattle, WA 981951124118054
- Jay HeineckeSeattle, WA 981951477643328
- Christine Lee, MDSeattle, WA 981951851303598
Common questions
What is William A. Hagopian, MD's NPI number?
William A. Hagopian, MD's National Provider Identifier (NPI) is 1841380706, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William A. Hagopian, MD located?
The NPPES record lists a practice address at University OF Washington Medical Ctr, Seattle, WA, 98195. Phone: (206) 598-4882. Providers update this record themselves, so call before visiting.
How can I verify William A. Hagopian, MD's license?
NPPES lists Washington license number MD00026590, 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.