Joshua U. Klein

About

Dr. Joshua U. Klein is a board-certified reproductive endocrinologist who co-founded Extend Fertility in New York City, where he leads the medical practice as chief clinical officer and serves as medical director of the embryology laboratory. He is also an assistant professor of obstetrics, gynecology and reproductive science at the Icahn School of Medicine at Mount Sinai. He received his medical degree from Harvard, trained in obstetrics, gynecology and reproductive biology at Massachusetts General and Brigham and Women's Hospitals, and completed his reproductive endocrinology and infertility fellowship at Columbia University. Before Extend Fertility, he was medical director of Reproductive Medicine Associates of New York's Brooklyn office. He holds board certification in both obstetrics and gynecology and reproductive endocrinology and infertility, and has published research and lectured widely on fertility preservation.

Education

Certifications

• –Board Certified, Obstetrics and Gynecology
• –Board Certified, Reproductive Endocrinology and Infertility
• –Fellow, American College of Obstetricians and Gynecologists (FACOG)