Ralf C. Zimmermann, MD

Associate Professor
Reproductive Endocrinology & Infertility

Director, Audobon Reproductive Endocrinology and Infertility Clinic

To schedule an appointment: (646) 756-8282

Practice Location(s)

Center for Women’s Reproductive Care – Columbus Circle

1790 Broadway, 2nd & 4th FL

(between 57th & 58th St)

New York, NY 10019


Dr. Zimmermann is well versed in all aspects of reproductive endocrinology and assisted reproductive techniques and has a special interest in psychological aspects of infertility treatment. In addition to completing a residency in Obstetrics and Gynecology at Yale University and a fellowship at the Mayo Clinic, he also completed a residency in psychiatry, which uniquely qualifies him to provide individualized care focused on psychological aspects of infertility treatment. Dr. Zimmermann has many years of experience in the field of reproductive medicine. He has developed a deep understanding and appreciation of the many ways a family can be defined, including same-sex couples, single parenting and having a child later in life. A native of Germany, he attracts many European patients, who seek the treatment modality of egg donation, (mostly unavailable there) and who appreciate his fluency in German, Spanish and French. Working as director of Columbia University Medical Center’s Audobon Clinic of Reproductive Medicine, Dr. Zimmermann demonstrates his long-standing commitment to help economically disadvantaged couples have children. A National Institutes of Health grant facilitated Dr. Zimmermann to pursue in basic research interests: to study how formation of new blood vessels help to make the ovary and uterus the two most dynamic organs in the female body. Dr. Zimmermann has special interest is in ovarian physiology and ovarian aging. He has used this knowledge to help women preserve their fertility through egg cryopreservation (freezing).


Board Certified: Obstetrics & Gynecology, Reproductive Endocrinology & Infertility
Medical School: University of Hamburg, Germany
Residency Training: St. Elisabeth Hospital Oberhausen, Germany; University of Hamburg; Yale University School of Medicine, New Haven, CT
Fellowship Training: Mayo Clinic, Rochester, MN