Dr. Mark S. Salem is a UCI Health gastroenterologist who specializes in the diagnosis and treatment of inflammatory bowel diseases (IBD) and related conditions.

Mark S. Salem, MD



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  • American Board of Internal Medicine, Gastroenterology
  • American Board of Internal Medicine, Internal Medicine
  • English
Medical School
University of Miami School of Medicine
LAC/USC Medical CenterInternal Medicine
University of Southern California/LAC + USC Medical CenterInternal Medicine
Baylor College of MedicineGastroenterology and Hepatology
Cedars-Sinai Medical CenterInflammatory bowel disease
Professional Positions
  • Assistant Professor — Division of Gastrenterology, Department of Medicine, UCI School of Medicine
More Information

Dr. Mark S. Salem is a board-certified UCI Health gastroenterologist who specializes in the treatment of inflammatory bowel diseases (IBD). His clinical interests include Crohn’s disease, ulcerative colitis, pouch-related disorders and extra-intestinal manifestations of IBD.

Salem earned his medical degree at the University of Miami Miller School of Medicine in Miami, Fla. He completed an internship and residency in internal medicine at LAC+USC Medical Center and the Keck School of Medicine at USC in Los Angeles, Calif., followed by a fellowship in gastroenterology and hepatology Baylor College of Medicine in Houston, Texas.

During his Baylor fellowship, he spent a month of IBD training at UC San Francisco School of Medicine as the Crohn’s and Colitis Foundation's Visiting IBD fellow. He also pursued additional IBD training at Cedars-Sinai Medical Center in Los Angeles, Calif.

Salem sees patients at the H.H. Chao Comprehensive Disease Center in Orange.

UCI Health Chao Family Comprehensive Digestive Disease Center
101 The City Drive South, Building 22C
Orange, CA 92868
Phone: 888-717-4463
Fax: 855-813-0240