Gastroenterology in Seattle, Washington
Data updated monthly · Last refresh September 2026
163 Gastroenterology providers practice in Seattle, and 43% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Seattle
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Stephen Rulyak, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 329-1760 Dr. Steven Lewis, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 365-4492 Dr. Steven Lin, MD, MPHSeattle, WA · No drug or device payments recorded (2025) ·
(206) 326-3000 Dr. Steven Wegley, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 365-4492 Dr. Sum Lee, MD PHDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 764-2364 Dr. Susan Mccormick, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 223-6600 Dr. Teresa BrentnallSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 598-4377 Dr. Timothy Zisman, MD, MPHSeattle, WA · $136 in drug and device payments (2025) · Telehealth ·
(206) 223-2319 Dr. Toan Nguyen, M.D.Seattle, WA · $294 in drug and device payments (2025) ·
(206) 764-2285 Dr. Vikram Anand, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 223-2319 Dr. Wataru Tamura, MDSeattle, WA · $533 in drug and device payments (2025) · Telehealth ·
(206) 365-4492 Dr. William Grady, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5307 Dr. Yutaka Tomizawa, M.D.Seattle, WA · $260 in drug and device payments (2025) · Telehealth ·
(206) 744-7050 Conditions Gastroenterology providers in Seattle, Washington commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
Common questions
How many Gastroenterology providers are in Seattle, Washington?There are 163 Gastroenterology providers with active NPI records practicing in Seattle, according to federal NPPES data refreshed monthly.
How many Gastroenterology providers in Seattle received drug or device company payments?70 of 163 (43%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Gastroenterology providers in Seattle treat?Gastroenterology providers in Seattle commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Seattle Gastroenterology across Washington
