Gennadiy Bakis is a Gastroenterology physician affiliated with Oregon Health & Science University. OpenAlex indexes 58 publications with 1,328 citations (h-index 13).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
1111 NE 99th Ave Ste 301
Portland, OR 972209442
Telephone
503-963-2707Provider last certified this registry record 26 Feb 2026.
Industry payments
5 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Boston Scientific CorporationProgram year20251 payment
- Boston Scientific CorporationProgram year20244 payments
- Olympus Corporation of the AmericasProgram year20238 payments
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Cancer & immunology
96.9%Integrin Receptor Antagonist96.9%Vedolizumab100%Part B, office-administered≥12 patientsMetabolism & gastrointestinal
3.1%Osmotic Laxative2.6%Gavilyte-G59%Peg-3350 And Electrolytes24%Gavilyte-C17%Part D≥57 patientsProton pump inhibitor0.4%Omeprazole100%Part D≥12 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Understanding Post-Esophagectomy Complications and Their Management: The Early Complications
Journal of Clinical Medicine
2023 - S3343 McKittrick-Wheelock Syndrome: Chronic Diarrhea Due to a Giant Tubulovillous Adenoma With Endoscopic Management
The American Journal of Gastroenterology
2023
Similar KOLs
Other experts from the same institution or the same specialty.
Eric Orwoll, MD
Oregon Health & Science University
Aaron Caughey, MD
Oregon Health & Science University
Tomasz Beer, MD
Oregon Health & Science University
John Nutt, MD
Oregon Health & Science University
A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”