Marilyn Mayne, DO, FACOOG, is board certified in obstetrics and gynecology, and a Fellow of the American College of Osteopathic Obstetricians & Gynecologists. Dr. Mayne provides a broad variety of obstetric and gynecologic care including annual exams, family planning, prenatal and pregnancy services, and menopause management. She earned her medical degree from New York College of Osteopathic Medicine in Old Westbury in 2000 and completed a one-year internship at St. Joseph Hospital in Philadelphia before undertaking her obstetrics and gynecology residency training at Philadelphia College of Osteopathic Medicine. She next served in the United States Air Force as a flight commander, Medical Director of obstetrics/gynecology and Major in the Medical Corps based at Misawa Air Base in Japan. She has been practicing obstetrics and gynecology in Lake County since 2010.