Dr. John W. Roark Jr graduated from the University of California, Los Angeles David Geffen School of Medicine in 1977. He works in Oakland, CA and 1 other location and specializes in Gastroenterology and Internal Medicine. Dr. Roark Jr is affiliated with Alta Bates Summit Medical Center Herrick Campus, John Muir Medical Center Walnut Creek and Alta Bates Summit Medical Center. He speaks English and Spanish.
Years in Practice: 38 Years
Languages Spoken: English, Spanish
Medical School: University of California, Los Angeles David Geffen School of Medicine
Graduation Date: 1977
Specialties: Gastroenterology, Internal Medicine
*This physician has multiple office locations. See Appointments for details.