3 Best Gastroenterologists in San Bernardino, CA

“ Dr. J. Robert Evans graduated from Thomas Jefferson University Medical College. He completed his internship and residency at Loma Linda University Medical Center. Dr. J. Robert Evans is board-certified in Internal Medicine and Gastroenterology. He specializes in performing colonoscopy, proctosigmoidoscopy, and sigmoidoscopy procedures. He is a compassionate doctor who understands his patients' conditions and gives them the best possible treatment. He has affiliations with Community Hospital San Bernardino and St. Bernardine Medical Center. ”

“ 2026 Highlights: Dr. Won Jo is board-certified in gastroenterology and has over 15 years of clinical experience. He completed his M.D. degree at the University of California, San Diego. Dr. Won Jo performed his internship and residency at Tufts-New England Medical Center in Boston, Massachusetts. Dr. Won Jo completed his fellowship training in gastroenterology and hepatology at Massachusetts General Hospital. Dr.Won Jo was engaged in colon cancer research and taught at Harvard Medical School during his fellowship. Dr. Won Jo has several publications in national journals regarding the genetics and treatment of colon cancer. ”

“ Dr. Khaled Selim is board-certified by the American Board of Internal Medicine. He graduated from Cairo University Faculty of Medicine. Dr. Khaled Selim completed his Internal Medicine residency at St. Joseph's Regional Medical Center. He completed his gastroenterology and hepatology fellowship at Keck School of Medicine of the University of Southern California. Dr. Khaled Selim has expertise in performing gastrointestinal endoscopies, liver transplants, paracentesis, and preventive medicine. He is bilingual and can speak English and Arabic fluently. Dr. Khaled Selim practices at Loma Linda University Transplantation Institute. ”