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OF PO Box# 1959Seattle, WA 98195
Phone+1 206-598-4882
Fax+1 206-520-5620
Dr. Hagopian is on Doximity
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Education & Training
University of WashingtonFellowship, Endocrinology, Diabetes, and Metabolism, 1989 - 1994- University of WashingtonResidency, Internal Medicine, 1987 - 1989
University of Chicago Division of the Biological Sciences The Pritzker School of MedicineClass of 1987
Certifications & Licensure
CA State Medical License 1993 - Present
WA State Medical License 1989 - 2026
Publications & Presentations
PubMed
- Family history of type 2 diabetes delays development of type 1 diabetes in TEDDY children with islet autoimmunity.Riitta Veijola, Roy N Tamura, Joanna L Clasen, Helena Elding Larsson, Katharina Warncke
Diabetologia. 2025-12-08 - A type 1 diabetes genetic risk score discriminates between type 1 diabetes and type 2 diabetes in a Chinese population.Jingyi Hu, Guozhi Jiang, Jiabi Qin, Shuoming Luo, Baoqi Fan
Diabetologia. 2025-09-01 - The impact of ancestry on performance of type 1 diabetes genetic risk scores: high discrimination performance is maintained in African ancestry populations, but popula...Steven Squires, Jean Claude Katte, Dana Dabelea, Catherine Pihoker, Jasmin Divers
Medrxiv. 2025-07-17
Journal Articles
- Temporal Development of the Gut Microbiome in Early Childhood from the TEDDY StudyRichard E Lloyd, Marian Rewers, William Hagopian, Ramnik J Xavier, Nature
- The Human Gut Microbiome in Early-Onset Type 1 Diabetes from the TEDDY StudyRamnik J Xavier, Marian J Rewers, William A Hagopian, Nature
- The Environmental Determinants of Diabetes in the Young (TEDDY) Study: 2018 UpdateMarian Rewers, Desmond Schatz, William Hagopian, Current Diabetes Reports
Press Mentions
New Data Shed Light on Type 1 Diabetes Male PredominanceAugust 16th, 2024- Combined Risk Score Predicts Type 1 Diabetes in BabiesAugust 10th, 2020
- New Test Better Predicts Which Babies Will Develop Type 1 DiabetesAugust 7th, 2020
Grant Support
- Whole Protein Arrays to Detect Antimicrobial Antibodies Associated with Triggering and Progression of Islet Autoimmunity in TEDDYARIZONA STATE UNIVERSITY-TEMPE CAMPUS2024–2027
- The Environmental Determinants Of Diabetes In YOUTH: Washington Clinical CenterNational Institute Of Diabetes And Digestive And Kidney Diseases2008–2011
- Phase II Multiple-Dose Treatment Of Type 1 Diabetes MellitusNational Center For Research Resources2007
- Diabetes Evaluation In Washington (Dew-It) Clinical Cen*National Institute Of Diabetes And Digestive And Kidney Diseases2003–2007
- Phase II Multiple-Dose Treatment Of Type 1 Diabetes Mellitus With Ala-AlaNational Center For Research Resources2006
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