Dr. Warren D. Johnston has been practicing medicine for 39 years. Dr. Johnston graduated from the University of Rochester School of Medicine and Dentistry in 1975. He practices medicine in Orange, CA and specializes in Cardiovascular Disease. Dr. Johnston is affiliated with Hoag Memorial Hospital and Saint Joseph Hospital Of Orange. He speaks English and Spanish.
Years in Practice: 39 Years
Languages Spoken: English, Spanish
Medical School: University of Rochester School of Medicine and Dentistry
Graduation Date: 1975
Specialties: Cardiovascular Disease