Dr. Klein graduated with honors from the University of Michigan. Following his undergraduate education, he received his Doctorate of Medicine from the Albert Einstein College of Medicine and completed residency training in Obstetrics and Gynecology at The George Washington University Medical Center. During residency, he was recognized for his surgical skills and was awarded the Society of Laparoendoscopic Surgeons resident achievement award. Dr. Klein developed an interest in reproductive disorders and subsequently completed a fellowship in Reproductive Endocrinology and Infertility at Columbia -Presbyterian Medical Center. He has received many academic awards during his studies and training, including the prestigious Ortho-McNeil Pharmaceutical Education Award.

While at Columbia University, Dr Klein pursued research on novel reagents for clinical use in IVF and infertility treatments. This innovative work culminated in national recognition, presentations at international meetings, and collaboration with a global pharmaceutical company. He has published both basic research and clinical reports in peer-reviewed journals as well as chapters in textbooks on a wide range of reproductive topics including IVF, reproductive aging and egg donation. Dr. Klein has been recognized as a Top Reproductive Endocrinologist and infertility specialist in Westchester Magazine’s Top Doctors every year since 2007. His areas of expertise include treatment infertility, IVF, egg donation, polycystic ovarian syndrome, endometriosis, recurrent pregnancy loss and reproductive surgery. He is a member of the American College of Obstetrics and Gynecology, the American Society for Reproductive Medicine, and the Society for Reproductive Endocrinology and Infertility.