Skip to Main Content


Mentored Faculty

Uterine Biology

  • Assistant Professor of Obstetrics, Gynecology & Reproductive Sciences

    Dr. Reshef Tal is Assistant Professor of Obstetrics and Gynecology and Reproductive Sciences at the Yale School of Medicine and a Women’s Reproductive Health Research (WRHR) Scholar. He obtained his M.D. and Ph.D. in Molecular Biology at Sackler School of Medicine in Tel-Aviv University, Israel. Following a postdoctoral research fellowship at the Lunenfeld Research Institute at the University of Toronto, he completed his residency in Obstetrics and Gynecology at Maimonides Medical Center, NY, followed by a fellowship in Reproductive Endocrinology and Infertility at Yale University School of Medicine. During his fellowship, Dr. Tal was accepted into the Women’s Reproductive Health Research (WRHR) scholar program, a National Institutes of Health (NIH)-funded physician-scientist career development program aimed at fostering the growth of young obstetrician-gynecologists into established, independent investigators in the field. His laboratory is focused on investigating the role of bone marrow-derived stem cells and immune cells in embryo implantation, pregnancy maintenance and uterine remodeling with the ultimate goal of developing new therapies for patients with infertility. His clinical interests include infertility, IVF, polycystic ovarian syndrome (PCOS), recurrent pregnancy loss (RPL) and endometrial pathologies including Asherman’s syndrome, thin endometrium and implantation failure.Dr. Tal is the recipient of many research awards including the New England Fertility Society/Ferring Fellow Research Award, the Society of Reproductive Endocrinology & Infertility (SREI)/American Society for Reproductive Medicine (ASRM) Fellow Research Award, Patterson Trust Fellow Award, Society for Reproductive Investigation (SRI) President's Plenary Award and the Albert S. McKern Award. Dr. Tal has published over 70 peer-reviewed scientific articles, authored 8 book chapters and also edited a book (Antimullerian Hormone: Biology, Role in Ovarian Function and Clinical Significance). In addition, he serves as an Associate Editor for the journal Reproductive Biology & Endocrinology (RB&E).

Cancer Biology

  • Assistant Professor of Obstetrics and Gynecology; Wellness committee, Obstetrics, Gynecology & Reproductive Sciences

    Gary Altwerger, M.D. is a Gynecologic oncologist in the department of Assistant Obstetrics, Gynecology and Reproductive Sciences at Yale University School of Medicine. Dr. Altwerger has a special interest in early uterine cancer detection, identification of predictive and prognostic biomarkers in precancerous lesions, and has been published in novel treatment techniques for gynecologic cancers. He is the currently the Supervising Physician for the Inpatient Gynecologic Oncology Physicians Assistants, and Assistant Director of Inpatient Gynecologic Oncology Services, and serves on the IRB committee reviewing cancer research protocols at Yale New Haven Hospital. Dr. Altwerger’s laboratory is working on identifying ways to target DNA repair pathways in advanced uterine cancer. He additionally is implementing novel surgical techniques for the treatment of early-stage gynecologic cancer. Dr. Altwerger is the PI on multiple rare gynecologic cancer protocols.

Pregnancy Sciences