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Our Staff
Reproductive Biology Associates was established by Dr. Hilton Kort and Dr. Joe Massey in 1983 as Georgia's first IVF center. Our physicians boast more than 150 years of cumulative experience in the diagnosis and personalized treatment of infertility.
PHYSICIANS
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. Read more...
Daniel B. Shapiro, M.D. joined Reproductive Biology Associates in 1995. A native of Miami, Florida, he graduated Magna cum laude, Phi Beta Kappa from Bowdoin College in Brunswick, Maine. He then went on to medical school at Emory University School of Medicine in Atlanta and it was during this training that Dr. Shapiro first became interested in reproductive medicine by doing a research project with RBA in 1987. Read more...
Andrew A. Toledo, M.D. became a member of the Reproductive Biology Associates team in 1990, and is the current CEO. He has treated infertile couples in the Atlanta area for over twenty years. His interest in the field of reproductive endocrinology and infertility began in medical school, when he had the opportunity to participate in an ongoing study of the psychological aspects of infertility. This interest flourished during his obstetrics and gynecology residency, after his work on the use of estrogen in damaged fallopian tubes was awarded first prize during Resident Research Presentations in 1980. Read more....
Scott M. Slayden, M.D. joined Reproductive Biology Associates in January 2001. Dr. Slayden is board-certified in Obstetrics and Gynecology, Reproductive Endocrinology and Infertility by the American Board of Obstetrics and Gynecology. Read more...
Robert J. Straub, M.D. joined Reproductive Biology Associates in August 2003. Dr. Straub is a member of numerous medical societies, some of which are The American Board of Obstetrics and Gynecology, The American Society of Reproductive Medicine (ASRM), and The Society of Reproductive Endocrinology and Infertility. Though a native of New York, Dr. Straub received his B.A. from Davidson College in North Carolina. He then retuned to New York City and earned his medical degree from New York University. Following medical school, he completed a four-year residency in Obstetrics and Gynecology and was Chief Resident at Lenox Hill Hospital. Read More...
Pavna K. Brahma, M.D., joined Reproductive Biology Associates in the fall of 2010 after completing her fellowship in Reproductive Endocrinology and Infertility at Emory University. Originally from Michigan, Dr. Brahma earned her undergraduate degree in Biopsychology and Cognitive Science at the University of Michigan. She then received her medical degree from The University of Michigan Medical School where she earned the J. Robert Willson award for excellence in Obstetrics and Gynecology. Motivated by her interest in reproductive medicine and women’s health, she completed her four-year residency in Obstetrics and Gynecology at the University of Michigan Hospitals. During residency, she developed strong clinical and research interests in polycystic ovary syndrome, endocrine pathways, and ovarian aging. Her sincere desire to help couples achieve their dreams of parenthood motivated Dr. Brahma to pursue a fellowship in Reproductive Endocrinology and Infertility. Read More...
Michael A. Witt, M.D. (Male Infertility and Urology)
Michael A. Witt, M.D. joined Reproductive Biology Associates in 1995 and specializes in the treatment of male infertility, sexual function and urology. Dr. Witt is a Fellow of the American College of Surgeons, a Diplomat of the American Urology Association, a member of the American Society for Reproductive Medicine (ASRM) and the American Society of Andrology. He is also active in both the Georgia and Atlanta Urological Societies. Dr. Witt is board-certified in urology by the American Board of Urology. Read more...
SCIENTISTS
Zsolt Peter Nagy, Ph.D. (Embryology)
Zsolt Peter Nagy, born in Hungary, joined Reproductive Biology Associates as Scientific and Laboratory Director in August 2002. He brings to RBA vast experience and expertise in performing and supervising assisted reproduction procedures. Dr. Nagy has performed and coordinated numerous scientific projects, and most recently has contributed to improvements in oocyte cryopreservation that led to the establishment of the first highly efficient donor egg cryo-bank in the United States. Read more...
