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Pediatric Gastroenterology in Portland, Oregon

Data updated monthly · Last refresh September 2026

23 Pediatric Gastroenterology providers practice in Portland. Listings are drawn from federal public records and are not endorsements.

Pediatric Gastroenterology providers in Portland

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. Albert Shan, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 494-8311
Dr. Amanda Lee, M.D.
Portland, OR · No drug or device payments recorded (2025) · (954) 612-5896
Dr. Amy Tsai, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 216-6050
Dr. Anna Hunter, MD
Portland, OR · $26 in drug and device payments (2025) · (503) 494-1078
Dr. Annie Terry, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-1078
Dr. Ariel Porto, MD
Portland, OR · $816 in drug and device payments (2025) · (503) 418-5751
Dr. Emily Whitfield, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 418-5751
Dr. Gillian Lam, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 346-0640
Dr. Henry Lin, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 418-5751
Dr. Hillary Bashaw
Portland, OR · $10,921 in drug and device payments (2025) · (503) 418-5751
Dr. Jacqueline Try, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 346-0640
Dr. Kathryn Moyer, M.D.
Portland, OR · $183 in drug and device payments (2025) · (503) 281-5139
Dr. Kenneth Cox, MD
Portland, OR · No drug or device payments recorded (2025) · (650) 723-5070
Dr. Kent Rosenwald, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 276-6138
Dr. Kimberly Trieschmann, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 494-3186
Dr. Kristina Leinwand, D.O.
Portland, OR · $18,346 in drug and device payments (2025) · (503) 280-2898
Dr. Matthew Riley, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 281-5139
Dr. Melissa Sheiko, M.D.
Portland, OR · $48 in drug and device payments (2025) · (503) 281-5139
Dr. Mikelle Bassett, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 418-5751
Dr. Raghu Varier, D.O.
Portland, OR · $44 in drug and device payments (2025) · (503) 281-5139
Dr. Ramya Ramraj, M.D
Portland, OR · No drug or device payments recorded (2025) · (800) 813-2000
Dr. Sylvia Doan
Portland, OR · No drug or device payments recorded (2025) · (503) 418-5751
Dr. William Marshall, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 281-5139

Common questions

How many Pediatric Gastroenterology providers are in Portland, Oregon?

There are 23 Pediatric Gastroenterology providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.

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 Portland Pediatric Gastroenterology across Oregon

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.