Nima Motamedi, MD

503-692-3750
Areas of Focus: 
Colon Cancer Prevention & Screening
Gastroesophageal Reflux Disease (GERD)
Diseases of the Liver & Biliary Tract
Inflammatory Bowel Disease (IBD)
Disorders of the Stomach & Small Bowel

About Me

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.

- Nima Motamedi, MD

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. 

Other Interests: 

As a Portland native, 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.

My Work

Dr. Motamedi specializes in gastroenterology as well as hepatology (liver disease). His areas of focus include colon cancer prevention and screening, GERD and IBD. 

Hospitals Served: 
Legacy Meridian Park Medical Center
Providence Newberg Medical Center
Providence Willamette Falls Medical Center
Specialties: 
Areas of Focus: 
Colon Cancer Prevention & Screening
Gastroesophageal Reflux Disease (GERD)
Diseases of the Liver & Biliary Tract
Inflammatory Bowel Disease (IBD)
Disorders of the Stomach & Small Bowel
Liver Disease

Education & Honors

Board Certified: 
Gastroenterology - Board Eligible
Education & Training: 
  • 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
Honors: 
  • Resident of the Year (2012-2013)
  • Alumni Merit Medical School Scholarship
Publications: 
  • 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.
Other Activities: 
  • Member, American College of Gastroenterology (ACG)
  • Member, American Society for Gastrointestinal Endoscopy (ASGE)
  • Member, American Gastroenterological Association (AGA)