Dr. John A Fagan specializes in family practice in Rancho Cucamonga area. Dr. John A Fagan, MD has a medical practice at 10787 Laurel Street, Rancho Cucamonga CA, and has over 31 years of experience in the field of medicine. He graduated from University Of California, San Diego School Of Medicine with his medical degree in 1986. He is affiliated with numerous hospitals, including San Antonio Regional Hospital (CA) and more. Dr. Fagan is accepting new patients at his medical office and practice location in Rancho Cucamonga, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.