Meet Our Clinical Fellows

Fellows are physicians who have completed four years of training in Obstetrics and Gynecology and are further specializing in Reproductive Endocrinology & Infertility. They are involved in performing ultrasound monitoring as well as procedures such as saline sonograms, intrauterine inseminations, and egg retrievals. All of the senior physicians at UCSF CRH are dedicated to training the next generation of exceptional fertility doctors.

Jacob Christ

Clinical Fellow

Jacob Christ obtained his Bachelor of Science from Cornell University and Medical Degree from the Cleveland Clinic Lerner College of Medicine where he completed a Fulbright fellowship studying polycystic ovary syndrome (PCOS) in the Netherlands. He subsequently completed residency training in obstetrics and gynecology at the University of Washington in Seattle, WA. Jacob is a member of the American Society of Reproductive Medicine androgen excess special interest group and is involved in ongoing research on health outcomes among patients with PCOS.  

Jacob Christ

Clinical Fellow

Jacob Christ obtained his Bachelor of Science from Cornell University and Medical Degree from the Cleveland Clinic Lerner College of Medicine where he completed a Fulbright fellowship studying polycystic ovary syndrome (PCOS) in the Netherlands. He subsequently completed residency training in obstetrics and gynecology at the University of Washington in Seattle, WA. Jacob is a member of the American Society of Reproductive Medicine androgen excess special interest group and is involved in ongoing research on health outcomes among patients with PCOS.  

Brett Stark

Clinical Fellow

Dr. Brett Stark, MD, MPH is a board-certified Obstetrician and Gynecologist. Brett Stark obtained his master's in public health from Harvard University and his Medical Degree from Georgetown University. He subsequently completed residency training in obstetrics and gynecology at UCSF. Brett's clinical interests include LGBTQ+ family building and access to fertility care.

Brett Stark

Clinical Fellow

Dr. Brett Stark, MD, MPH is a board-certified Obstetrician and Gynecologist. Brett Stark obtained his master's in public health from Harvard University and his Medical Degree from Georgetown University. He subsequently completed residency training in obstetrics and gynecology at UCSF. Brett's clinical interests include LGBTQ+ family building and access to fertility care.

Kaia Schwartz

Clinical Fellow

Kaia Schwartz is proud to join the UCSF team as a clinical fellow in Reproductive Endocrinology and Infertility. She is coming to San Francisco from Cleveland, OH after completing her OBGYN residency at Cleveland Clinic. Kaia is thrilled to pursue her passion for helping individuals and couples achieve their dream of starting a family. Beyond her professional pursuits, Kaia is looking forward to hiking, camping, and exploring the beautiful landscape of Nothern California. Additionally, Kaia eagerly anticipates cultivating a garden in her backyard to complement her passion for home cooking. 

Kaia Schwartz

Clinical Fellow

Kaia Schwartz is proud to join the UCSF team as a clinical fellow in Reproductive Endocrinology and Infertility. She is coming to San Francisco from Cleveland, OH after completing her OBGYN residency at Cleveland Clinic. Kaia is thrilled to pursue her passion for helping individuals and couples achieve their dream of starting a family. Beyond her professional pursuits, Kaia is looking forward to hiking, camping, and exploring the beautiful landscape of Nothern California. Additionally, Kaia eagerly anticipates cultivating a garden in her backyard to complement her passion for home cooking. 

Bahar Yilmaz

Clinical Fellow

Bahar Yilmaz is thrilled to join the incredible team at UCSF as a clinical fellow in Reproductive Endocrinology and Infertility. Following her graduation from Koc University School of Medicine in Istanbul, Turkey, she joined the Bulun Lab at Northwestern University to conduct research on abnormalities in endometrial cells that potentially contribute to diseases like endometriosis. Subsequently, she completed her OBGYN residency at Northwestern University in Chicago, IL. She eagerly anticipates collaborating with patients to help them achieve their goals and aspirations while acquiring invaluable knowledge from respected leaders in this field during her fellowship. On a personal note, Bahar takes pleasure in dancing, cherishing moments in nature with her family, and looks forward to exploring the wonders of Northern California.

Bahar Yilmaz

Clinical Fellow

Bahar Yilmaz is thrilled to join the incredible team at UCSF as a clinical fellow in Reproductive Endocrinology and Infertility. Following her graduation from Koc University School of Medicine in Istanbul, Turkey, she joined the Bulun Lab at Northwestern University to conduct research on abnormalities in endometrial cells that potentially contribute to diseases like endometriosis. Subsequently, she completed her OBGYN residency at Northwestern University in Chicago, IL. She eagerly anticipates collaborating with patients to help them achieve their goals and aspirations while acquiring invaluable knowledge from respected leaders in this field during her fellowship. On a personal note, Bahar takes pleasure in dancing, cherishing moments in nature with her family, and looks forward to exploring the wonders of Northern California.

Zeynep Koc

Clinical Fellow

Zeynep Koc obtained her Bachelor of Science from the Pennsylvania State University and completed her Medical Degree at Marshall University. She subsequently completed residency in Obstetrics and Gynecology at the Penn State Milton S. Hershey Medical Center before practicing as a generalist OB/GYN for two years. Outside of her passion for helping patients to realize their family planning goals, Zeynep enjoys traveling and dancing and looks forward to discovering the unique culinary and art scene offered by the vibrant Northern California community.

Zeynep Koc

Clinical Fellow

Zeynep Koc obtained her Bachelor of Science from the Pennsylvania State University and completed her Medical Degree at Marshall University. She subsequently completed residency in Obstetrics and Gynecology at the Penn State Milton S. Hershey Medical Center before practicing as a generalist OB/GYN for two years. Outside of her passion for helping patients to realize their family planning goals, Zeynep enjoys traveling and dancing and looks forward to discovering the unique culinary and art scene offered by the vibrant Northern California community.