Dr. Calvin M. Duong is an internist in Colton, California and is affiliated with multiple hospitals in the area, including Foothill Presbyterian Hospital and Kaiser Permanente Fontana and Ontario Medical Centers. He received his medical degree from University of Southern California School of Medicine and has been in practice for more than 20 years. Dr. Calvin M. Duong has expertise in treating gastroenteritis, diabetes, among other conditions - see all areas of expertise. Dr. Calvin M. Duong accepts Medicare, Blue Cross, Kaiser - see other insurance plans accepted.