Dr. Diehl received her M.D. degree at the University of Michigan Medical School in 1994 and completed her General Surgery residency, critical care fellowship, and breast care fellowship, also at the University of Michigan. Dr. Diehl is a member of the American College of Surgeons and a member of numerous societies including the American Medical Association, the American College of Surgeons, Association for Women Surgeons, American Society of Breast Surgeons, American Society of Breast Disease, Society of Surgical Oncology, Association for Academic Surgery, and American Society of Clinical Oncology. Dr.Diehl's clinical interests focus is treatment of elderly breast cancer patients, hormonal therapy in the prevention and treatment of breast cancer and screening and peri-operative care of geriatric patients.