Patricia Allen, M.D. & Keri Gans, M.S., R.D., C.D.N. Patricia Yarberry Allen, M.D., director of the New York Menopause Center, is an Assistant Obstetrician and Gynecologist at New York-Presbyterian Hospital (1985-present), a board certified fellow of the American College of Obstetrics and Gynecology, a Clinical Assistant Professor of Obstetrics and Gynecology at Weill Cornell Medical College, Faculty Advisory to Weill Cornell Community Clinic, and a member of the North American Menopause Society. Keri Gans is a Registered Dietitian with a private practice in New York City and the author of The Small Change Diet (Gallery 2011). She is a past spokesperson for the Academy of Nutrition and Dietetics, and past president of the New York State Dietetic Association. Keri spends the majority of her time conducting individual nutrition counseling, public speaking, writing and consulting.