Ian Holmes, MD

Areas of Focus: 
Pancreatobiliary Disease
Endoscopic Ultrasound (EUS)
Endoscopic Retrograde Cholangiopancreatography (ERCP)
Endoscopic Mucosal Resection
Barrett's Esophagus

About Me

Everyone deserves to thoroughly understand their condition and treatment options. My goal as a specialist is to provide my patients with the knowledge and confidence to make informed decisions about their health

- Ian Holmes, MD

Dr. Holmes was drawn to Gastroenterology because of the longitudinal relationships with patients, the exciting advances in the field of therapeutic endoscopy, and the intellectual challenge of taking care of several interlinked organ systems. 

Dr. Holmes completed a therapeutic endoscopy fellowship at Thomas Jefferson University Hospital in Philadelphia, where he received advanced training in therapeutic EUS, ERCP, stenting of the gastrointestinal tract, endoscopic suturing, double-balloon enteroscopy, Barrett's ablation, and other skills.

Dr. Holmes likes living in Portland because of the amazing food scene and the proximity to the great outdoors. When he isn't working, Dr. Holmes enjoys hiking with his wife and son, camping, skiing, and watching his beloved Northwest sports teams. 

My Work

Hospitals Served: 
Providence Portland Medical Center
Areas of Focus: 
Pancreatobiliary Disease
Endoscopic Ultrasound (EUS)
Endoscopic Retrograde Cholangiopancreatography (ERCP)
Endoscopic Mucosal Resection
Barrett's Esophagus
Small Bowel Enteroscopy
General Gastroenterology

Education & Honors

Board Certification: 
  • Gastroenterology, Board Certified
  • Internal Medicine, Board Certified
Education & Training: 
  • Fellowship, Advanced Endoscopy, Thomas Jefferson University Medical Center, Philadelphia, PA, 2021
  • Fellowship, Gastroenterology & Hepatology, University of California, San Francisco, San Francisco, CA, 2020
  • Internship & Residency, Stanford University Medical Center, Palo Alto, CA, 2017
  • MD, Weill Cornell Medical College, New York, NY, 2014
  • BS, Haverford College, Haverford, PA , 2010
  • Gastrointestinal Endoscopy Top Reviewer, Clinical Reviewer Category, 2021
  • Gastrointestinal Endoscopy Top Reviewer, New and Mentee Reviewer Category, 2020
  • Yale/Stanford Johnson & Johnson Global Health Scholars Program
  • Alpha Omega Alpha Honor Medical Society
  • Sarah O'Laughlin Foley Prize, Clinical Medicine
  • Portland Monthly Magazine, "Top Doctors," 2023
  • Holmes I, Triadafilopoulos G, Jensen K, Friedland S. How good is good enough? Lymph node metastasis after endoscopic resection of a rectosigmoid polyp. Dig Dis Sci. 2015 Jul 2. PMID 26134989
  • Holmes I, Kim HG, Yang DH, Friedland S. Avulsion is superior to argon plasma coagulation of visible residual neoplasia during EMR of colorectal polyps (with videos.) Gastrointest Endosc. 2016 Apr 11. PMID 27080417
  • Holmes I, Friedland S. Endoscopic mucosal resection versus endoscopic submucosal dissection for large polyps: A western colonoscopist’s view. Clin Endosc. 2016 Sep;49(5):454-456. PMID 27561263
  • Holmes I, Hing T, Friedland S. Combining endoscopic submucosal dissection and endoscopic mucosal resection to treat neoplasia in Barrett's esophagus. Surg Endo. 2016 Dec;30(12):5330-5337. PMID 27071930
  • Holmes I, Kim HG, Yang DH, Friedland S. Response. Gastrointest Endosc. 2017 Jul;86(1):251-252. PMID 28610865
  • Yang J, Chen YI, Friedland S, Holmes I et al. Lumen-apposing stents versus plastic stents in the management of pancreatic pseudocysts: a large, comparative, international, multicenter study. Endoscopy. 2019 Nov; 51(11): 1035-1043. PMID 30536255
  • Chen YI, Yang J, Friedland S, Holmes I et al. Lumen apposing metal stents are superior to plastic stents in pancreatic walled-off necrosis: a large international multicenter study. Endosc Int Open. 2019 Mar;7(3):E347-E354. PMID 30834293
  • Holmes I, Ko MS, Kouanda A, Singh A, Nett A, Kathpalia P. Epiphrenic diverticula: an added source of complexity in achalasia management. Neurogastroenterol Motil. 2020 Mar;32(3) PMID 31777144
Other Activities: 
  • Member, American Gastroenterological Association
  • Member, American Society of Gastrointestinal Endoscopy
  • Member, American College of Gastroenterology