Gastroenterology in Clackamas, Oregon
Data updated monthly · Last refresh September 2026
14 Gastroenterology providers practice in Clackamas. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Clackamas
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. Amit Sadana, MDClackamas, OR · $362 in drug and device payments (2025) ·
(503) 652-2880 Dr. Averill Guo, MDClackamas, OR · $3,607 in drug and device payments (2025) ·
(503) 571-8240 Dr. Ben Bryant, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 571-8240 Dr. Caroline Tadros, M.D.Clackamas, OR · $17 in drug and device payments (2025) ·
(503) 652-2880 Dr. David Clarke, MDClackamas, OR · No drug or device payments recorded (2025) ·
(503) 571-8240 Dr. Elaine Gossman, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 571-8240 Dr. Frank Yeh, MDClackamas, OR · $699 in drug and device payments (2025) ·
(800) 813-2000 Dr. Janice ChoClackamas, OR · No drug or device payments recorded (2025) ·
(507) 284-2511 Dr. Jeffrey Olson, M.D.Clackamas, OR · $90 in drug and device payments (2025) · Telehealth ·
(503) 571-9134 Dr. Kamran Aghaie, MDClackamas, OR · No drug or device payments recorded (2025) ·
(503) 570-8240 Dr. Noel Lee, MDClackamas, OR · No drug or device payments recorded (2025) ·
(800) 813-2000 Dr. Ronald Hapke, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 571-8240 Dr. Theodore Tollivoro, M.D.Clackamas, OR · $277 in drug and device payments (2025) ·
(800) 813-2000 Dr. Timothy Burke, D.O.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 722-9155 Conditions Gastroenterology providers in Clackamas, Oregon 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 Clackamas, Oregon?There are 14 Gastroenterology providers with active NPI records practicing in Clackamas, according to federal NPPES data refreshed monthly.
What conditions do Gastroenterology providers in Clackamas treat?Gastroenterology providers in Clackamas 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 Clackamas Gastroenterology across Oregon