Winifred Mak, MBBS, PhD

Assistant Professor of Obstetrics, Gynecology, and Reproductive Sciences; Director, Early Recurrent Pregnancy Loss Program

Departments & Organizations

Obstetrics, Gynecology & Reproductive Sciences: Reproductive Endocrinology & Infertility: Yale Fertility Center | Reproductive Sciences: Discovery to Cure Internship

Office of Student Research

Stem Cell Center, Yale

Yale Medical Group


Dr. Winifred Mak is an Assistant Professor of Obstetrics and Gynecology at Yale University and Director of Early Recurrent Pregnancy Loss Program. She obtained both of her medical degree and PhD in Genetics from the University of London, UK. She completed her Residency in Obstetrics and Gynecology at Cedars-Sinai medical center, Los Angeles followed by a fellowship in Reproductive Endocrinology and Infertility at the University of Pennsylvania. After graduating from fellowship, she was recruited to Yale University to be one of the Women’s Reproductive Health Research (WRHR) scholars. The WRHR program is a nationwide prestigious NIH funded physician-scientist training program specific for Obstetrician/Gynecologist. Therefore, as well as caring for patients, she also has an active research program at the Yale Stem Cell Center. Her clinical interests include all aspects of Infertility, polycystic ovarian syndrome and especially recurrent pregnancy loss. Her research interests include the role of a translational regulator, Pumilio, in primordial folliculogenesis and oogenesis, epigenetics of placenta development, placental stem cells, embryo implantation and pregnancy outcomes of Assisted Reproductive Technologies such as IVF.

Education & Training

PhD University of London (2004)
MBBS University of London (1997)
Fellowship University of Pennsylvania
Residency Cedars-Sinai Medical Center, Los Angeles
Residency St. Mary's Hospital
Residency Addenbrooke's Hospital
Board Certification AB of Obstetrics & Gynecology (2014)

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Contact Info

Winifred Mak, MBBS, PhD
Patient Care Location
Yale Reproductive Endocrinology and Infertility150 Sargent Drive, Ste 2nd Floor
New Haven, CT 06511
Office Location
Farnam Memorial Building
310 Cedar Street, Ste 329G

New Haven, CT 06510
Mailing Address
Yale Obstetrics, Gynecology & Reproductive SciencesPO Box 208063
New Haven, CT 06520-8063

Mak lab