Dr. Joseph Y. Wu practices at Yorba Park Medical Group, Orange, California, specializing in Geriatrics and Internal Medicine. In addition to Dr. Wu's medical practice, he was the Assistant Clinical Professor and Director of the Western Medical Center for the Department of Family Medicine at the University of California Irvine. Dr. Wu is a member of the American College of Physicians, the California Medical Association and the Orange County Medical Association. Dr. Wu has held many positions in acute-care hospitals including Chairman of the Department of Medicine (Chapman General Hospital), Chief of Staff (Chapman General Hospital and Western Medical Center/Santa Ana), and Medical Director (Western Medical Center/Bartlett). Dr. Wu is certified by the American Board of Internal Medicine and Geriatrics. He holds a Bachelors of Arts Degree in Physiology from Southern Illinois University, completed his Doctorate of Medicine at Creighton University, followed by post-graduate training at UCI/Long Beach Veteran Administration Hospital.