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Gastroenterologists in Oregon

Data updated monthly · Last refresh October 2026

277 Gastroenterology providers practice in Oregon, including 123 (44%) offering telehealth. The largest concentration is in Portland. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

277providers
123telehealth
Portlandtop city

Gastroenterology by city in Oregon

Choose a city to see providers there.

Gastroenterology in Portland135 providers
Gastroenterology in Springfield21 providers
Gastroenterology in Tualatin18 providers
Gastroenterology in Salem17 providers
Gastroenterology in Clackamas14 providers
Gastroenterology in Bend14 providers
Gastroenterology in Oregon City10 providers
Gastroenterology in Medford9 providers
Gastroenterology in Hillsboro8 providers
Gastroenterology in Roseburg8 providers
Gastroenterology in Corvallis7 providers
Gastroenterology in Tigard2 providers
Gastroenterology in Milwaukie2 providers
Gastroenterology in Eugene2 providers
Gastroenterology in Hermiston2 providers
Gastroenterology in Gresham2 providers
Gastroenterology in Mcminnville1 providers
Gastroenterology in Albany1 providers
Gastroenterology in Newport1 providers
Gastroenterology in Ashland1 providers
Gastroenterology in Newberg1 providers
Gastroenterology in Lebanon1 providers

Gastroenterology providers in Oregon

Listed by city, largest first. 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. Weitian Liu, MD, PHD
Hillsboro, OR · No drug or device payments recorded (2025) · (800) 813-2000
Dr. Terrance Hill, MD
Lebanon, OR · No drug or device payments recorded (2025) · (541) 451-6380
Dr. Kimya-anhcina Nguyen, DO
Mcminnville, OR · No drug or device payments recorded (2025) · (503) 434-6688
Dr. Adam Mougey, M.D.
Medford, OR · No drug or device payments recorded (2025) · (541) 779-8367
Dr. Alan Posner, MD
Medford, OR · No drug or device payments recorded (2025) · (360) 241-3366
Dr. Anthony Haulk, MD
Medford, OR · No drug or device payments recorded (2025) · (541) 779-8367
Dr. Gregory Winters, MD
Medford, OR · $69 in drug and device payments (2025) · (541) 789-8367
Dr. Kris Jacobson, MD
Medford, OR · No drug or device payments recorded (2025) · (541) 779-8367
Dr. Paul Schleinitz, MD
Medford, OR · No drug or device payments recorded (2025) · (541) 779-8367
Dr. Peter Adesman, MD
Medford, OR · $68 in drug and device payments (2025) · (541) 779-8367
Dr. Richard Hebert, MD
Medford, OR · No drug or device payments recorded (2025) · (541) 779-8367
Dr. Vinshi Khan, M.D.
Medford, OR · $81 in drug and device payments (2025) · Telehealth · (443) 739-7887
Dr. Anne Breitinger, MD
Milwaukie, OR · No drug or device payments recorded (2025) · (503) 215-5895
Dr. Jonathan Hattenhauer, D.O.
Milwaukie, OR · No drug or device payments recorded (2025) · (503) 215-5895
Dr. Patrick Maveety, M.D.
Newberg, OR · No drug or device payments recorded (2025) · (503) 554-1111
Dr. Nazmul Hoque, MD
Newport, OR · $317 in drug and device payments (2025) · Telehealth · (541) 265-8309
Dr. Brian Applebaum, M.D.
Oregon City, OR · $27 in drug and device payments (2025) · Telehealth · (503) 692-3750
Dr. Chun-yang Chang, MD
Oregon City, OR · No drug or device payments recorded (2025) · Telehealth · (503) 692-3750
Dr. Jaime Scott, MD
Oregon City, OR · $116 in drug and device payments (2025) · (503) 692-3750
Dr. Michael Sheffield, MD
Oregon City, OR · No drug or device payments recorded (2025) · (503) 692-3750
Dr. Monina Pascua, MD
Oregon City, OR · $96 in drug and device payments (2025) · Telehealth · (503) 692-3750
Dr. Paul Anderson, M.D.
Oregon City, OR · No drug or device payments recorded (2025) · Telehealth · (503) 692-3750
Dr. Steven Mason, MD
Oregon City, OR · No drug or device payments recorded (2025) · (503) 692-3750
Dr. Thomas Huber, MD
Oregon City, OR · No drug or device payments recorded (2025) · (503) 723-6525
Dr. William Ferrin, MD
Oregon City, OR · No drug or device payments recorded (2025) · (503) 657-5555
Dr. Zibing Woodward, M.D.
Oregon City, OR · $250 in drug and device payments (2025) · Telehealth · (503) 692-3750
Dr. Adam Silverblatt, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 297-8081
Dr. Aditi Reddy
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-4373
Dr. Ajay Singhvi, M.D.
Portland, OR · $144 in drug and device payments (2025) · Telehealth · (503) 963-2707
Dr. Alan Kaynard, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 297-8081
Dr. Alan Savoy, MD
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 963-2707
Dr. Albert Khine, M.D.
Portland, OR · $809 in drug and device payments (2025) · Telehealth · (503) 221-0161
Dr. Amnon Sonnenberg, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 220-8262
Dr. Amy Wang, MD
Portland, OR · $125 in drug and device payments (2025) · Telehealth · (503) 297-8081
Dr. Amy Zhu, MD
Portland, OR · $70,452 in drug and device payments (2025) · Telehealth · (503) 963-2707
Dr. Andy Barnett, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-0924
Dr. Anil Sharma, M.D.
Portland, OR · $13,794 in drug and device payments (2025) · Telehealth · (503) 297-8081
Dr. Anna Sasaki, MD, PHD
Portland, OR · No drug or device payments recorded (2025) · (503) 220-8262
Dr. Anne Wang, MD
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 963-2707
Dr. Anthony Razzak, M.D.
Portland, OR · $24 in drug and device payments (2025) · Telehealth · (503) 963-2707
Dr. Arnab Mitra, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7127
Dr. Atif Zaman, MD
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-4373
Dr. Barry Schlansky, M.D.
Portland, OR · No drug or device payments recorded (2025) · (800) 813-2000
Dr. Betty Kim, MD
Portland, OR · $125 in drug and device payments (2025) · Telehealth · (503) 963-2707
Dr. Branden Tarlow, MD
Portland, OR · $180 in drug and device payments (2025) · Telehealth · (503) 963-2707
Dr. Brent Lee, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 297-8081
Dr. Brintha Enestvedt, MD
Portland, OR · $50 in drug and device payments (2025) · Telehealth · (503) 297-8081
Dr. Caitlin Citti, M.D.
Portland, OR · $174 in drug and device payments (2025) · (503) 494-4373
Dr. Charles Gabbert
Portland, OR · $703 in drug and device payments (2025) · Telehealth · (503) 963-2707
Dr. Christopher Carter, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 297-8081

Conditions Gastroenterology providers in 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.

Common questions

How many Gastroenterology providers are in Oregon?

There are 277 Gastroenterology providers with active NPI records practicing in Oregon, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Oregon offer telehealth?

Yes. 123 of the 277 Gastroenterology providers in Oregon (about 44%) report offering telehealth services in CMS data.

Which cities in Oregon have the most Gastroenterology providers?

Portland (135), Springfield (21), Tualatin (18) have the highest concentration of Gastroenterology providers in Oregon.

How many Gastroenterology providers in Oregon received drug or device company payments?

125 of 277 Gastroenterology providers in Oregon (45%) 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 Oregon treat?

Gastroenterology providers 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 counts and profiles 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.

Do most Gastroenterologists in Oregon work in independent practices or large health systems?

Among 175 Gastroenterologists in Oregon enrolled in Medicare, 3% bill through a solo or small practice with fewer than 10 clinicians, 18% through a mid-size group of 10 to 99, and 79% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Oregon work at?

According to CMS facility affiliation records, the Oregon hospitals where the most Gastroenterologists hold privileges are Ohsu Hospital and Clinics in Portland; Providence Portland Medical Center in Portland; Providence St Vincent Medical Center in Portland.

Related reading on HealthcareDiscovery.AI

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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. Are you a Gastroenterology in Oregon? Get featured.