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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 175 years of cumulative experience in the diagnosis and personalized treatment of infertility.

PHYSICIANS

Dorothy Mitchell-Leef, M.D.

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.

Video of Dorothy Mitchell-Leef, M.D.

Daniel B. Shapiro, M.D

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.

Dr. Shapiro completed fellowship training in Reproductive Endocrinology and Infertility at the University of Connecticut School of Medicine in 1995. Since graduating from fellowship, he has authored and/or co-authored over 50 scientific papers. He is an invited speaker on a number of topics in reproductive medicine and was recently faculty for a post-graduate course at ASRM. He is nationally and internationally known for his work with GnRH antagonists in IVF treatment and has consulted with other practices regarding the efficient use of these drugs.

With the advances made in egg freezing by RBA's lab, under Dr. Peter Nagy, Dr. Shapiro led the effort to establish a working clinical model for RBA's egg bank. Since the opening of the frozen egg bank for egg donation in 2007, Dr. Shapiro has acted as its clinical manager. Prior to this and currently, Dr. Shapiro also serves as RBA's medical director. In addition to his work in ovulation induction for IVF, Dr. Shapiro has interest in the management of PCOS, endometriosis and reproductive surgery.

Dr. Shapiro is board-certified in both Obstetrics and Gynecology and Reproductive Endocrinology/Infertility. He is a member of the American Society for Reproductive Medicine (ASRM), the American College of Obstetrics and Gynecology (ACOG), and the Society of Reproductive Endocrinologists.

Dr. Shapiro is married with three children. In his spare time he enjoys water sports, skiing, Scrabble with his children, and playing bit parts in community theater.

Video of Daniel B. Shapiro, M.D

Andrew A. Toledo, M.D.

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.

A native of Tampa, Florida, Dr. Toledo received his medical degree in 1979 from the University of South Florida. He completed his residency in Obstetrics and Gynecology in 1983, as well as his fellowship in Reproductive Endocrinology and Infertility in 1985 at the University of Louisville. He came to Atlanta in 1985 after joining the Department of Gynecology and Obstetrics at Emory University, and was Co-director of the Reproductive Endocrinology Section at the Emory Clinic until he left to join Reproductive Biology Associates in 1990.

Dr. Toledo is board-certified in Reproductive Endocrinology and Obstetrics and Gynecology by the American Board of Obstetrics and Gynecology. He is a member of numerous medical societies, including the American Society of Reproductive Medicine (ASRM), the Society of Reproductive Endocrinologists, and the Society of Reproductive Surgeons. Dr. Toledo served as President of the Georgia Obstetrical and Gynecological Society (2003-2004) and the Atlanta Obstetrical and Gynecological Society (2005-2006). He is currently the Legislative Chair of the Georgia Obstetrical and Gynecological Society and is very active in the legislative process.

Dr. Toledo's scientific interests span all areas of reproductive medicine, with a particular focus on advanced reproductive technologies, reproductive surgery, and recurrent pregnancy loss. He has published over thirty-six peer-reviewed articles and has been honored in Atlanta Magazine as one of "Atlanta's Top Docs" in 1999, 2001, and 2003. The Guide to Top Doctors named him one of the "Top Doctors in America" in 2002 and 2003, as well as one of "America's Top Obstetricians and Gynecologists" by the Consumer Research Council of America in 2004, 2005 and 2007. He was also named one of the Best Doctors in America by his peers for 2007-2008 and included as one of the physicians in The Best of the U.S. listings in 2008. Dr. Toledo was recently awarded RESOLVE's 2009 Hope Award for Advocacy, based on his years of commitment to supporting access to care for infertility patients both in Georgia and throughout the U.S.

Dr. Toledo has four children. He and his wife enjoy many activities, including running, weight-training, swimming, golf and tennis.

Video of Andrew A. Toledo, M.D.

Scott M. Slayden, M.D.

Scott M. Slayden, M.D. joined RBA in January 2001. He is board-certified in OB/GYN and Reproductive Endocrinology and Infertility. Dr. Slayden is a member of American College of Obstetrics and Gynecology (ACOG), the American Society of Reproductive Medicine (ASRM), and the Georgia OB/GYN Society. Dr. Slayden has over 20 years of experience in the infertility field and 10 years prior experience providing obstetrical care and delivering babies.

Originally a native of Coral Gables, Florida, Dr. Slayden moved to Atlanta and graduated high school from Pace Academy. He obtained a B.S. in Biology from Vanderbilt University in 1985, where he originally planned to obtain a pHD in marine biology and reproductive physiology. Experiences gained during his job as an undergraduate research assistant at the newly formed Vanderbilt IVF program eventually changed this plan. This one turn of events led to a true calling and career in reproductive medicine.

Dr. Slayden obtained his M.D. in 1990 from Tulane University School of Medicine in New Orleans, Louisiana. In 1994, He completed his OB/GYN residency training at the Medical University of South Carolina in Charleston. Afterwards, Dr. Slayden completed his fellowship in Reproductive Endocrinology and Infertility at the University of Alabama at Birmingham. During this time he received extensive experience with in vitro fertilization (IVF), ovulation induction, infertility surgery, and treatment of female endocrine disorders, including PCOS. Prior to joining RBA, Dr. Slayden was Assistant Professor of Obstetrics & Gynecology in the Division of Reproductive Endocrinology, Infertility and Genetics at the Medical College of Georgia, Augusta. In 2001, he decided to move beyond the university setting to join the RBA team and be closer to his extended family.

At RBA, Dr. Slayden draws from extensive experience providing state of the art infertility treatment at all levels for patients with infertility and recurring pregnancy loss. He is passionate about educating patients regarding the reasons behind their reproductive issues. A patient-centered approach with customized care and discussion of all treatment options is key. His interests include all areas of fertility treatment with a special interest in pre- implantation genetic diagnosis (PGD) using comparative genomic hybridization (CGH), and treatment of pa- tients with diminished ovarian reserve (DOR) with decreased AMH. Dr. Slayden has many years of experience counseling patients about egg donation options and elective fertility preservation (oocyte banking). His greatest professional satisfaction comes with the daily privilege of helping couples reach their family building goals.

Out of the office, Dr. Slayden enjoys spending time with his wife and their three children. Any time spent on a lake or beach is always cherished. He also enjoys landscaping, fixing old cars, photography and watching his college football team hopefully win a few games.

Video of Scott M. Slayden, M.D.

Robert Straub, M.D.

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.

Dr. Straub was then selected to complete a very competitive three year subspecialty Fellowship in Reproductive Endocrinology and Infertility at The Center for Reproductive Medicine and Infertility at Cornell University in Manhattan under the direction of the internationally renowned, Zev Rosenwaks, M.D. During his fellowship, Dr. Straub was an Assistant Attending at The Weill Cornell Medical Center and received intense training in infertility management consisting of ovulation induction and in-vitro fertilization, management of endometriosis and polycystic ovarian syndrome, endocrine disorders, and endoscopic surgery (laparoscopy and hysteroscopy). Dr. Straub has been published in peer reviewed medical journals on numerous occasions, on topics such as ovulation induction and ovarian apoptosis (cell death). Currently, Dr. Straub serves as a board member for the Georgia Obstetrics and Gynecology Society (GOGS).

Robert's second passion is his family. He and his wife have four children. Whenever he has the chance, Robert enjoys golfing, mountain biking, and restoring antique furniture. Dr. Straub sees patients in the Cumming and Fayetteville offices as well as our Main Office in Dunwoody.

Video of Robert Straub, M.D.

Pavna Brahma, M.D.

Pavna K. Brahma, MD joined the RBA team of physicians in the fall of 2010 after completing her fellowship in Reproductive Endocrinology and Infertility at Emory University. Dr. Brahma is a native of Michigan where she completed her undergraduate education and earned her degree in medicine at the University of Michigan. Motivated by her interest in reproductive medicine and women's health, she then completed a four-year residency in obstetrics and gynecology at the University of Michigan Hospital. Her sincere desire to help couples achieve their dream of parenthood led her to pursue a fellowship in Reproductive Endocrinology and Infertility at Emory University.

Dr. Brahma has won numerous awards and accolades including the J. Robert Willson award for Excellence in Obstetrics and Gynecology, a prize paper award at the 2009 annual meeting of the American Society of Reproductive Medicine, and the basic Science Research Award from the Department of Obstetrics and Gynecology at Emory University.

Dr. Brahma's primary clinical and research interest include polycystic ovarian syndrome, diminished ovarian reserve, premature ovarian insufficiency, and in vitro fertilization therapy. She is board certified in obstetrics and gynecology from the American College of Obstetrics and Gynecology and is also board eligible for the Reproductive Endocrinology and Infertility sub-specialty as well.

On a more personal note, Dr. Brahma and her husband Barun have two young children. Her personal interest include spending time with her family, traveling and jogging.

Video of Pavna Brahma, M.D.

 

Monica Best, M.D.

Monica W. Best, MD, joined Reproductive Biology Associates in the fall of 2013 after completing her fellowship in Reproductive Endocrinology and Infertility at the Emory University School of Medicine. Dr. Best earned her undergraduate Bachelor of Science degree in Biology from the University of Michigan where she graduated with honors and with multiple academic awards to her credit. Dr. Best is a native of St. Louis and returned to Missouri for medical school where she was awarded a full academic scholarship to attend the University of Missouri School of Medicine. It was during medical school that Dr. Best became interested in research in reproductive medicine. She was awarded the prestigious Fulbright Scholarship where she researched and later published work on the novel rapid non-genomic actions of sex steroids at the University of Pisa in Pisa, Italy.

Dr. Best completed her residency in Obstetrics and Gynecology at the University of Chicago School of Medicine. During residency, her interest in Reproductive Endocrinology and Infertility blossomed. She was involved in recurrent pregnancy loss clinical research and presented this work at the national ASRM meeting in 2009. It was also during this time that Dr. Best realized her love of teaching residents and medical students. She was elected and served as the Chief Academic Resident of her residency class. She continues to strive to connect with her patients and serves as a compassionate physician educator while addressing the challenges involved in evaluation and treatment of infertility.

Dr. Best went on to receive excellent training in basic reproductive endocrinology, ovulation induction, in vitro fertilization, and minimally invasive surgery during her fellowship at Emory University School of Medicine. Dr. Best has published in peer reviewed journals, authored book chapters, and presented her research nationally. She is a member of numerous medical societies to include the American Congress of Obstetricians and Gynecologists and the American Society of Reproductive Medicine. Her clinical interests encompass all aspects of male and female infertility with specific focus on recurrent pregnancy loss, polycystic ovary syndrome, premature ovarian insufficiency, diminished ovarian reserve, endometriosis, fertility preservation and oocyte cryopreservation.

Helping patients achieve their dreams of having children is her continuous reward. Dr. Best is married and enjoys spending time with family, traveling, and participating in medical outreach both domestically and abroad.

Carlene Elsner, M.D. (Not seeing new patients)

Carlene Elsner, M.D., F.A.C.O.G., has worked in the field of infertility since 1973. She is Subspecialty Board Certified by the Division of Reproductive Endocrinology of the American Board of Obstetrics and Gynecology. She was the first board certified reproductive endocrinologist in Atlanta and is a founding partner of Reproductive Biology Associates. She is a charter member of the Society for Reproductive Endocrinology and of the Society for Assisted Reproductive Technology. Dr. Elsner is also a Fellow of the American College of Obstetrics and Gynecology. Additional memberships include: the American Society for Reproductive Medicine, The Reproductive Biology Special Interest Group, the South Atlantic Association of Obstetrics and Gynecology, and the Georgia Obstetrics and Gynecology Society.

Dr. Elsner has been selected by the American Fertility Association to be the 2009 recipient of the Joyce M. Vargyas M.D. Visionary Award. She has been honored as one of "Atlanta's Top Docs" by Atlanta Magazine and chosen as one of America's Top Obstetricians and Gynecologists by the Consumer Research Council of America every year from 2002-2009. She has also been chosen for inclusion in the Global Who's Who.

Dr. Elsner is a native of Columbus, GA. She received her B.S. from the University of Georgia and her M.D. from the Medical College of Georgia. She did an internship at Eugene Talmadge Memorial Hospital in Augusta, GA. Dr. Elsner completed a four year residency and was Chief Resident in Obstetrics and Gynecology at the University of Florida School of Medicine. She served as a Postdoctoral Research Fellow in Reproductive Biology at the Division of Reproductive Biology of the Department of Obstetrics and Gynecology at the Hospital of the University of Pennsylvania. She completed a fellowship in Reproductive Endocrinology at UCLA Harbor Medical Center and was on the Faculty of the Bowman Gray School of Medicine of Wake Forest University.

In 1970, Dr. Elsner became interested in reproductive endocrinology when she served a preceptorship with Professor G.I.M. Swyer at the Fertility and Endocrine Clinics at the University College Hospital Medical School in London, England. Since that time, Dr. Elsner has conducted research on a variety of topics including hormone receptors, the endocrinology of pregnancy, disorders of the menstrual cycle, including the premenstrual syndrome and dysmenorrhea, ovulation, invitro fertilization (IVF), and oocyte cryopreservation. She has authored or coauthored scores of scientific articles in British and American medical journals and several book chapters on these and other subjects.

Dr. Elsner's current research interests are focused on the development of oocyte cryopreservation for egg banking for egg donation programs and also for fertility preservation. Other interests include the use of preimplantation genetic diagnosis for recurrent pregnancy loss, advanced maternal age, and IVF failure. Dr. Elsner is a strong advocate for women's reproductive health issues. She answers questions about fertility in the Fertile Thoughts column of the Divine Caroline website. She is a frequent speaker for educational programs for practicing physicians, residents, and particularly for patients. She has been active in the resident training program for the Department of Obstetrics and Gynecology of the Medical College of Central Georgia and for Emory University School of Medicine. Dr. Elsner is married and has two adult daughters. She enjoys spending time with her family. She also likes to ski, golf, and travel. After hours, she is active in a variety of community service organizations which benefit the Shepherd Center, the High Museum, the Atlanta Women's Foundation, the Atlanta Opera, and the Shakespeare Festival at Oglethorpe University.

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.

Dr. Witt received his medical degree from Oregon Health Sciences University in Portland, Oregon. He completed his residency at Boston University Hospital and male infertility fellowship at Baylor College of Medicine. Prior to joining Reproductive Biology Associates, Dr. Witt was an assistant professor in the Department of Surgery at the Emory University School of Medicine.

Dr. Witt's major areas of research interest include: advanced techniques in sperm retrieval, vasal reconstruction, applications of ultrasound in the infertile male, and fertility in spinal cord injury. He has published over twenty articles in medical journals and written numerous medical text chapters on the treatment of male infertility. Dr. Witt has participated in many patient education seminars and has been featured on the Learning Channel and CNN in stories relating to infertility. Atlanta Magazine has honored Dr. Witt as one of "Atlanta's Top Docs".

Dr. Witt and his wife have four children, which never leaves a dull moment. Both he and his wife manage to find time for their hobbies. Dr. Witt is an avid runner and has completed more than twenty five marathons and two Ironman triathlons. His wife is a professional harpist and Dr. Witt enjoys supporting his wife's harp career.

Video of Michael A. Witt, M.D.

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, coordinated and supervised several research projects that have been awarded with national or international grants. Most recently he, with his team, contributed to significant improvements in oocyte cryopreservation using vitrification technology, which led to the establishment of the first highly-efficient donor egg cryo-bank in the United States. The same novel approach now offers a long awaited option for women to preserve their fertility for medical or for social reasons.

Dr. Nagy graduated summa cum laude from the Semmelweis Medical University of Budapest in 1986.

He was awarded a Masters degree in Biomedical Sciences from the Free University of Brussels (VUB) in 1991. He went on to obtain a degree in Hospital medicine management at the VUB in 1993, and in 1998 was awarded a Ph.D. degree in biomedical science at VUB. In 1997 he completed his training and obtained a Specialist degree in OB/GYN. In 2003, Dr. Nagy obtained the degree of High Complexity Laboratory Director (HCLD) by the American Board of Bioanalysis (ABB).

His professional career in assisted reproduction started at the Department of Reproductive Medicine (Brussels University) in 1989, employed as a medical scientist on the team that first developed intracytoplasmic sperm injection (ICSI), a novel insemination method, now utilized world-wide. Prior to joining the team at Reproductive Biology Associates, he was Scientific Director in Sao Paulo, Brazil, and at the European Hospital in Rome, Italy (1997-2001). During the last two decades, Dr. Nagy was frequently invited to perform international consultations to help improving efficiency of IVF Clinics, including to set up several ICSI laboratories at different points of the world.

Dr. Nagy is a member of several national and international professional societies, including the American Society for Reproductive Medicine (ASRM), the European Society for Human Reproduction and Embryology (ESHRE), and serves on various committees of these societies. He has been an invited speaker on hundreds of medical and scientific meetings over the last 15 years. Dr. Nagy has organized and/or chaired over 100 congresses, symposia, and workshops since 1991. He is a scientific reviewer for several peer-reviewed medical journals and Associate Editor of two highly ranked scientific journals: Human Reproduction and Reproductive Biomedicine. Dr. Nagy has authored or co-authored over 200 articles published in peer- reviewed medical and scientific journals, as well written or edited several books and book chapters.

Here are the three most recent books published, Edited by Dr. Nagy and his colleagues.

Video of Zsolt Peter Nagy, Ph.D.


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