Dr. Alexander W. Jahng is a gastroenterologist in Orange, California and is affiliated with multiple hospitals in the area, including UC Irvine Medical Center and Loma Linda University Medical Center. He received his medical degree from University of California, Irvine, School of Medicine and has been in practice between 11-20 years. Dr. Alexander W. Jahng accepts Medicare, Aetna, Blue Cross, United Healthcare - see other insurance plans accepted.