Dr. Borst is the Director of GYN /Oncology at Banner Good Samaritan Regional Medical Center and a Clinical Assistant Professor University of Arizona College of Medicine. He specializes in the treatment of ovarian cancer, cervical cancer, uterine cancer, endometrial cancer and other gynecologic malignancies in the Phoenix metro area. His professional associations include the American College of Obstetricians and Gynecologists, American Medical Association, Maricopa County Medical Society and Society of GYN Oncologists.