Tracy Bohn Hemmerdinger, MD, is the medical director of obstetrics and gynecology (OB-GYN) at NewYork-Presbyterian Medical Group Hudson Valley and division chief of obstetrics and gynecology at NewYork-Presbyterian Hudson Valley Hospital. She is an assistant professor of obstetrics and gynecology at Columbia University Medical Center.

In her role, Dr. Hemmerdinger will continue to expand NewYork-Presbyterian Hudson Valley Hospital's obstetrics and gynecology division through provider recruitment and community outreach. In January 2021, the hospital opened its newly renovated Maternal & Newborn Care Unit, designed to provide an outstanding experience before, during and after childbirth and expand access to the hospital's team of leading specialists and expert care.

Dr. Hemmerdinger is a board-certified OB-GYN and has been a fellow of the American College of Obstetrics and Gynecology since 2008. She also served as a member of the NYC Health + Hospitals/Elmhurst Blood Utilization Committee. An accomplished academic researcher, Dr. Hemmerdinger has published in peer-reviewed journals, most recently on the topic of universal screening for SARS-CoV-2 infection among pregnant women.

The recipient of multiple awards and honors, Dr. Hemmerdinger has been awarded the NYC Health + Hospitals/Elmhurst's Elmmy Award, honoring exceptional service and care to patients. Passionate about training physicians, she also received the 2014-2015 Medical Student Teaching Award for outstanding teacher of obstetrics and gynecology from the Icahn School of Medicine at Mount Sinai, as selected by the medical students. After graduating from Icahn School of Medicine at Mount Sinai, Dr. Hemmerdinger served her residency At Mount Sinai Medical Center. She has served as a resident mentor from 2010-2020, before becoming a resident family mentor from 2020-2021.