Gene Bakis MD

Gene Bakis MD

TEL: 503-963-2707
FAX: 503-963-2802

Dr. Bakis enjoys that in gastroenterology, the successful treatment of patients requires the integration of a patient’s story, exam and lab findings, imaging, endoscopic, and pathologic findings. He strongly believes that therapeutic endoscopy is a team sport in which colleagues in surgery, radiology, pathology, anesthesia, primary care, nursing, and other gastroenterologists trust and rely on each other to provide the best care for patients. 

Dr. Bakis has 15 years of experience in therapeutic endoscopy at specialty medical centers. He trained with one of the pioneers of Endoscopic Retrograde Cholangiopancreatography (ERCP) in the United States and continued to practice during a rapid expansion of endoscopic possibilities. He was able to introduce new techniques such as therapeutic endoscopic ultrasound, endoscopic vacuum therapy, and endoscopic submucosal dissection at these specialty medical centers. 

Dr. Bakis enjoys the variety of cultural and natural opportunities that Oregon offers. Outside of work, he can be found spending time with his family and dogs. He speaks Ukrainian and Russian.

Volunteer Activities

Oregon Food Bank

Other Activities

Member, American Society for Gastrointestinal Endoscopy


Fellowship, Advanced Interventional Endoscopy, Maine Medical Center, Portland, ME, 2010 

Fellowship, Gastroenterology, State University of New York, Buffalo, NY, 2009 

Internship and Residency, Department of Medicine, University of Massachusetts, Worcester, MA, 2005 

MD, Albany Medical College, Albany, NY, 2002 

BS, Physics, Brooklyn College of the City University of New York, Brooklyn, NY, 1997 




Portland Monthly Magazine “Top Doctors”


Paniccia A, Polanco PM, Boone BA, Wald AI, McGrath K, Brand RE, Khalid A, Kubiliun N, O’Broin-Lennon AM, Park WG, Klapman J, Tharian B, Inamdar S, Fasanella K, Nasr J, Chennat J, Das R, DeWitt J, Easler JJ, Bick B, Singh H, Fairley KJ, Sarkaria S, Sawas T, Skef W, Slivka A, Tavakkoli A, Thakkar S, Kim V, Vanderveldt HD, Richardson A, Wallace MB, Brahmbhatt B, Engels M, Gabbert C, Dugum M, El-Dika S, Bhat Y, Ramrakhiani S, Bakis G, Rolshud D, Millspaugh G, Tielleman T, Schmidt C, Mansour J, Marsh W, Ongchin M, Centeno B, Monaco SE, Ohori NP, Lajara S, Thompson ED, Hruban RH, Bell PD, Smith K, Permuth JB, Vandenbussche C, Ernst W, Grupillo M, Kaya C, Hogg M, He J, Wolfgang CL, Lee KK, Zeh H, Zureikat A, Nikiforova MN, Singhi AD. Prospective, Multi-Institutional, Real-Time Next-Generation Sequencing of Pancreatic Cyst Fluid Reveals Diverse Genomic Alterations That Improve the Clinical Management of Pancreatic Cysts. Gastroenterology. 2023 Jan;164(1):117-133.e7. doi: 10.1053/j.gastro.2022.09.028. Epub 2022 Oct 6. 

Dolan JP, Kaur T, Diggs BS, Luna RA, Sheppard BC, Schipper PH, Tieu BH, Bakis G, Vaccaro GM, Holland JM, Gatter KM, Conroy MA, Thomas CA Jr, Hunter JG. Significant understaging is seen in clinically staged T2N0 esophageal cancer patients undergoing esophagectomy. Dis Esophagus. 2016 May;29(4):320-5. doi: 10.1111/dote.12334. Epub 2015 Feb 24. 

Sonnenberg A, Bauerfeind P, Bakis G. Cost-utility advantage of interventional endoscopy. Surg Endosc. 2023 Feb;37(2):1031-1037. doi: 10.1007/s00464-022-09599-8. Epub 2022 Sep 12. 

Sonnenberg A, Enestvedt BK, Bakis G. Management of Suspected Choledocholithiasis: A Decision Analysis for Choosing the Optimal Imaging Modality. Dig Dis Sci. 2016 Feb;61(2):603-9. doi: 10.1007/s10620-015-3882-7. Epub 2015 Sep 23. 

Foster BR, Jensen KK, Bakis G, Shaaban AM, Coakley FV. Revised Atlanta Classification for Acute Pancreatitis: A Pictorial Essay. Radiographics. 2016 May-Jun;36(3):675-87. doi: 10.1148/rg.2016150097