Dr. Duc Q Nguyen specializes in internal medicine in Fontana area. Dr. Duc Q Nguyen, MD has a medical practice at 9961 Sierra Avenue, Fontana CA, and has over 42 years of experience in the field of medicine. He graduated from his medical school with his medical degree in 1975. Dr. Nguyen is accepting new patients at his medical office and practice location in Fontana, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.