Nancy Jeong-Sun Han, MD, is board certified both in internal medicine and gastroenterology. Dr. Han earned her medical degree from Ohio State University. She completed her internship and residency at Cedars Sinai Medical Center in Los Angeles. In addition, Dr. Han completed a fellowship at the Mayo Clinic in Arizona. Dr. Han chose gastroenterology as her specialty because she believes strongly that intestinal health contributes to a person's overall happiness and well-being. She emphasizes the importance of good nutrition, regular exercise, and stress reduction for attaining optimal health and a high level of energy. In her spare time, Dr. Han spends time with her family. She also runs, bikes, bakes, and reads novels. In addition to English, Dr. Han speaks Korean.