Dr. Donna Diaz is an obstetrician-gynecologist in Columbus, Ohio and is affiliated with multiple hospitals in the area, including Mount Carmel St. Ann's and OhioHealth Riverside Methodist Hospital. She received her medical degree from Penn State College of Medicine and has been in practice for 28 years. She is one of 61 doctors at Mount Carmel St. Ann's and one of 79 at OhioHealth Riverside...