S. Zev Williams, MD, PhD

Iris Insogna, MD earned her BA at Yale University in Anthropology and Theatre Studies, then went on to earn her medical degree and master of bioethics at the University of Pennsylvania. She completed her residency in Obstetrics and Gynecology at Harvard Medical School's Brigham and Women's Hospital and Massachusetts General Hospital. She stayed on to complete her fellowship in Reproductive Endocrinology and Infertility at Harvard Medical School/Brigham and Women's Hospital. She is committed to providing personalized, compassionate care to each patient. Her research interests include bioethics, improving access to care, LGBTQIA+ fertility, and third party reproduction, including the use of donor egg, donor sperm and gestational carriers. She is interested in embryo development and preimplantation genetic testing as well.

Lauren Bishop, MD is an Assistant Professor of Obstetrics and Gynecology in the Division of Reproductive Endocrinology and Infertility at Columbia University Irving Medical Center. Dr. Bishop received her undergraduate degree from Fordham University before earning her medical degree at Ross University. She continued her medical training in Obstetrics and Gynecology at Georgetown University and Medstar Washington Hospital Center, where she led medical student education in her chief year. During this time she was awarded the Georgetown University Hospital S.P.I.R.I.T award for demonstrating compassion and commitment to patient care. She then completed her fellowship training in Reproductive Endocrinology and Infertility at the National Institutes of Health in Bethesda, Maryland. Dr. Bishop is a board-certified Fellow of the American College of Obstetricians and Gynecologists, and a member of the American Society for Reproductive Medicine and Society for Reproductive Investigation. She has published on diminished ovarian reserve and assisted reproductive technology in peer reviewed journals, and has presented her research at national and international conferences. Dr. Bishop is devoted to helping couples achieve their dreams of completing their family. She offers of full range of fertility treatments including ovulation induction, IVF, oocyte and sperm donation, and preimplantation genetic testing. She has a special interest in fertility preservation, and patients with diminished ovarian reserve, endometriosis, and ovulatory disorders. Dr. Bishop firmly believes in a patient centered model of care, and personalizes each treatment plan to her patients’ unique needs.

Alex Robles, MD earned his medical degree from Weill Cornell Medical College and went on to complete his residency in Obstetrics and Gynecology at the Weill Cornell Medical Center, NewYork-Presbyterian Hospital where he served as chief resident in his final year. He then completed his fellowship in Reproductive Endocrinology and Infertility at Columbia University Irving Medical Center, NewYork-Presbyterian Hospital. Dr. Robles is an active member of the American Society for Reproductive Medicine (ASRM) and is also board certified in Obstetrics and Gynecology. He has a special interest in nutrition, lifestyle, and holistic patient care. In addition, he is a first-generation Latino-American and is fluent in Spanish. Dr. Robles is devoted to providing compassionate, patient-centered care and to helping his patients realize their goals of growing their families.