Nima Motamedi MD

Nima Motamedi MD

TEL: 503-692-3750
FAX: 503-691-2324

“I believe patient education serves as the foundation of patient-doctor relationships. It allows me to build relationships and provide high quality care through shared decision making, integrating my patients’ values and preferences.”

Dr. Motamedi chose gastroenterology because he saw the impact he could have in preventing serious illnesses like cancer and treating chronic illnesses like inflammatory bowel disease and cirrhosis. The field allows him to work with his hands to fix urgent problems like ulcer bleeds and to foster long-term relationships with patients. 

As a lifelong Portland resident, Dr. Motamedi enjoys living here because of the friendly, family-oriented people who give it a special atmosphere and have cultivated a culture that emphasizes fun activities and good food. In his free time, Dr. Motamedi likes spending time with his family, playing and watching basketball, hiking, swimming and anything that involves water.

Other Activities

Member, American College of Gastroenterology (ACG)

Member, American Society for Gastrointestinal Endoscopy (ASGE)

Member, American Gastroenterological Association (AGA)


Fellowship, Gastroenterology, University of Southern California, Los Angeles, CA, 2018

Chief Residency, Internal Medicine, University of Southern California, Los Angeles, CA, 2015

Residency, Internal Medicine, University of Southern California, Los Angeles, CA, 2014

MD, University of Miami, Miami, FL, 2011

BS, Biochemistry, and Biophysics, Oregon State University, Corvallis, OR, 2005




Portland Monthly Magazine, “Top Doctors”, 2022

Resident of the Year (2012-2013)

Alumni Merit Medical School Scholarship


Motamedi, N, Kaplowitz, N, Dara, L. 2017. Clinical Considerations of Drug-Induced Hepatotoxicity. In: McQueen, C. (ed.) Comprehensive Toxicology. Third Edition. Netherlands: Elsevier.

Buxbaum J, Roth N, Motamedi N, Lee T, Leonor P, Salem M, Gibbs D, Vargo J. Anesthetist-Directed Sedation Favors Success of Advanced Endoscopic Procedures. Am J Gastroenterol, 2017; 112(2)290-96.

Hou LA, Laine L, Motamedi N, Sahakian A, Lane C, Buxbaum J: Optimal Timing of Endoscopic Retrograde Cholangiopancreatography in Acute Cholangitis. J Clin Gastroenterol. Accepted for publication.

Roth N, Motamedi N, Skay A, Van Dam J. High variability in serial pancreatic cyst fluid characteristics suggests that longer intervals of surveillance may be warranted. Digestive Disease Week, May 2017, Chicago, IL, USA.