HealthcareDiscovery.AI / Doctors / Washington / Gastroenterology

Gastroenterologists in Washington

Data updated monthly · Last refresh October 2026

536 Gastroenterology providers practice in Washington, including 222 (41%) offering telehealth. The largest concentration is in Seattle. 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.

536providers
222telehealth
Seattletop city

Gastroenterology by city in Washington

Choose a city to see providers there.

Gastroenterology in Seattle163 providers
Gastroenterology in Tacoma46 providers
Gastroenterology in Spokane37 providers
Gastroenterology in Everett31 providers
Gastroenterology in Vancouver27 providers
Gastroenterology in Olympia24 providers
Gastroenterology in Bellevue19 providers
Gastroenterology in Bellingham19 providers
Gastroenterology in Edmonds17 providers
Gastroenterology in Wenatchee14 providers
Gastroenterology in Kirkland14 providers
Gastroenterology in Yakima11 providers
Gastroenterology in Renton11 providers
Gastroenterology in Silverdale8 providers
Gastroenterology in Federal Way8 providers
Gastroenterology in Kennewick7 providers
Gastroenterology in Mount Vernon7 providers
Gastroenterology in Richland6 providers
Gastroenterology in Puyallup6 providers
Gastroenterology in Walla Walla6 providers
Gastroenterology in Burien6 providers
Gastroenterology in Issaquah5 providers
Gastroenterology in Moses Lake4 providers
Gastroenterology in Longview4 providers

Gastroenterology providers in Washington

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. Sandi Fields, MD
Vancouver, WA · No drug or device payments recorded (2025) · (360) 514-2000
Dr. Son Do, M.D.
Vancouver, WA · $1,052 in drug and device payments (2025) · Telehealth · (360) 576-5060
Dr. Todd La Rock, D.O.
Vancouver, WA · No drug or device payments recorded (2025) · (360) 514-7060
Dr. Vernon Hee, MD
Vancouver, WA · No drug or device payments recorded (2025) · (360) 397-1500
Dr. Carl Bauer, M.D.
Walla Walla, WA · No drug or device payments recorded (2025) · (509) 522-0100
Dr. Charles Hames, M.D.
Walla Walla, WA · No drug or device payments recorded (2025) · (509) 522-5825
Dr. James Harri, MD
Walla Walla, WA · No drug or device payments recorded (2025) · (509) 522-5825
Dr. Lawrence Zawatzky, M.D.
Walla Walla, WA · No drug or device payments recorded (2025) · (509) 525-3720
Dr. Leonard Philo, M.D.
Walla Walla, WA · $1,791 in drug and device payments (2025) · Telehealth · (509) 897-8200
Dr. Patrick Laing, M.D
Walla Walla, WA · No drug or device payments recorded (2025) · (509) 897-8200
Dr. Alan Smith, MD
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 663-8711
Dr. Gerald Bassett, MD
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 664-0530
Dr. Inku Hwang, M.D.
Wenatchee, WA · $15 in drug and device payments (2025) · Telehealth · (509) 663-8711
Dr. James Brown, MD
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 663-8711
Dr. Jason Lake, M.D.
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 663-8711
Dr. Jennifer Jorgensen, MD
Wenatchee, WA · No drug or device payments recorded (2025) · Telehealth · (509) 663-8711
Dr. Jennifer Newton, M.D.
Wenatchee, WA · No drug or device payments recorded (2025) · Telehealth · (509) 663-8711
Dr. Jonathan Dominguez, MD
Wenatchee, WA · $139 in drug and device payments (2025) · (509) 663-8711
Dr. Mitchell Cohen, MD
Wenatchee, WA · $163 in drug and device payments (2025) · (509) 663-8711
Dr. Owen Baldwin
Wenatchee, WA · No drug or device payments recorded (2025) · Telehealth · (509) 663-8711
Dr. Paul Ballinger, MD
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 663-8711
Dr. Remington Winter, MD
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 662-1511
Dr. Robert Ogburn, MD
Wenatchee, WA · No drug or device payments recorded (2025) · (509) 663-8711
Dr. Sowmya Palam, MD
Wenatchee, WA · $15 in drug and device payments (2025) · Telehealth · (509) 663-8711
Dr. Amarnath Ramakrishnan, MD
Yakima, WA · $604 in drug and device payments (2025) · Telehealth · (509) 248-6616
Dr. Christopher Bryan Tan, M.D.
Yakima, WA · $306 in drug and device payments (2025) · (509) 248-6616
Dr. Gonzalo Pandolfi, MD
Yakima, WA · $216 in drug and device payments (2025) · (509) 248-6616
Dr. Joseph Schmer, MD
Yakima, WA · No drug or device payments recorded (2025) · (509) 248-6616
Dr. Kevin Olden, MD
Yakima, WA · No drug or device payments recorded (2025) · (509) 248-6080
Dr. Nathan Alhalel, MD, MPH
Yakima, WA · No drug or device payments recorded (2025) · (509) 746-4125
Dr. Pornchai Leelasinjaroen, M.D.
Yakima, WA · $2,346 in drug and device payments (2025) · Telehealth · (509) 248-6616
Dr. Robert Williams, MD
Yakima, WA · No drug or device payments recorded (2025) · (509) 248-6616
Dr. Tejas Kirtane, M.D.
Yakima, WA · No drug or device payments recorded (2025) · (509) 249-6616
Dr. Thomas Pulliam, M.D.
Yakima, WA · No drug or device payments recorded (2025) · (509) 902-8857
Dr. Timothy Brown, MD
Yakima, WA · No drug or device payments recorded (2025) · (509) 248-6616
Dr. Gilbert Ong, MD
Zillah, WA · $170 in drug and device payments (2025) · (509) 314-6565

Conditions Gastroenterology providers in 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.

Common questions

How many Gastroenterology providers are in Washington?

There are 536 Gastroenterology providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Washington offer telehealth?

Yes. 222 of the 536 Gastroenterology providers in Washington (about 41%) report offering telehealth services in CMS data.

Which cities in Washington have the most Gastroenterology providers?

Seattle (163), Tacoma (46), Spokane (37) have the highest concentration of Gastroenterology providers in Washington.

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

234 of 536 Gastroenterology providers in Washington (44%) 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 Washington 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 Washington work in independent practices or large health systems?

Among 346 Gastroenterologists in Washington enrolled in Medicare, 4% bill through a solo or small practice with fewer than 10 clinicians, 16% through a mid-size group of 10 to 99, and 80% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Washington work at?

According to CMS facility affiliation records, the Washington hospitals where the most Gastroenterologists hold privileges are University of Washington Medical Ctr in Seattle; Tacoma General Allenmore Hospital in Tacoma; Swedish Medical Center in Seattle.

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 Washington? Get featured.