William Hagopian, MD
NPI 1841380706 · Endocrinology, Diabetes & Metabolism Physician · Seattle, WA
William Hagopian, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Seattle, WA (NPI 1841380706).
Provider details
- NPI number
- 1841380706
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00026590 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,296 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-13
- Last updated
- 2012-09-05
Frequently asked questions
- What is William Hagopian's NPI number?
- William Hagopian's National Provider Identifier (NPI) is 1841380706, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hagopian's specialty?
- William Hagopian is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is William Hagopian located?
- William Hagopian's practice location on file with NPPES is University of Washington Medical Ctr, Seattle, WA 98195-6176.
- What is William Hagopian's phone number?
- The practice phone number listed in the NPPES registry for William Hagopian is (206) 598-4882.
- Is William Hagopian's NPI active?
- Yes — William Hagopian's NPI (1841380706) is active in the NPPES registry as of the last update on 2012-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.