Dorothy Mitchell-Leef, M.D. joined Reproductive Biology Associates in 1991. She is board-certified by the American Board of Obstetrics and Gynecology. She is a past president and member of the Atlanta Obstetrical and Gynecological Society, a member of the American Society of Reproductive Medicine (ASRM), the American College of Obstetrics and Gynecology (ACOG), the Society of Reproductive Surgeons, and the South Atlantic Association of Obstetricians and Gynecologists. She is a founding member of the Society of Pediatric and Adolescent Gynecology.

A native of New York, Dr. Mitchell-Leef received her medical training from the University of Louisville in Kentucky, where she completed her internship and residency in Obstetrics and Gynecology and a fellowship in Reproductive Endocrinology and Infertility. Prior to joining RBA, Dr. Mitchell-Leef was an associate professor and Director of the Section of Reproductive Endocrinology and Infertility in the Department of Gynecology and Obstetrics at Emory University School of Medicine for ten years. Currently she is Clinical Associate Professor in the Department of OB/GYN at Emory University.

Dr. Mitchell-Leef was President of the Medical Association of Atlanta from 2000-2001. She serves on the Women's Health Series Board, as well as the continuing medical education subcommittee at Northside Hospital. Dr. Mitchell-Leef was the Editor of the gynecology section of the 2nd, 3rd, and 4th edition of the textbook: Medicine for the Practicing Physician. She is on multiple boards, including the Medical Association of Atlanta, the Medical Association of Georgia, and the Board of Governor's of the Buckhead Club. She has also served as President of the Women's Council for the American Society of Reproductive Medicine. Atlanta Magazine honored Dr. Mitchell-Leef as one of "Atlanta's Top Docs" in 1999 and 2001. She was named one of America's Top Obstetricians and Gynecologists by the Consumer Research Council of America from 2002-2009.

Dr. Mitchell-Leef was awarded the 2005 Aven Citizenship Cup Award by the Medical Association of Atlanta. This award was instituted 47 years ago to recognize physicians who play a significant role in civic affairs and to encourage continued community involvement. In May 2006, she was chosen the winner of the 2006 Atlanta Business Chronicle's Health Care Hero Award in the physician category. The Medical Association of Georgia has presented Dr. Mitchell-Leef the 2006 Hardman Cup Award. This award is presented only when an individual has done outstanding work or made an outstanding contribution to medicine or public health. She has recently been honored as one of the 2010 Womenetics POW Award winners, which is given to inspirational women in Atlanta’s business and non-profit community to honor innovative female leaders who forge new paths and build new environments for other women.

Dr. Mitchell-Leef's interests include IVF for fertility preservation in patients with carcinoma and leukemia, the effects of age on infertility, surgery for endometriosis, reconstructive surgery and myomectomies. She is especially interested in genetic evaluation for recurrent pregnancy loss. She has worked in coordination with Baylor University on endometriosis research in the area of genetics and protein markers.

Dr. Mitchell-Leef and her husband have two sons. She is currently the Ball Chair for the Shepherd Center Foundation. Her personal interests include gardening, photography, boating, and golf. She also enjoys mentoring young women who wish to pursue careers in medicine or nursing, and sponsors mentoring events for residents in Obstetrics and Gynecology.