Profile Information


Dr. Zimmermann completed his residency at Yale University and his fellowship at the Mayo Clinic. He also completed a residency in psychiatry which uniquely qualifies him to provide individualized care with emphasis on psychological aspects of infertility treatment. He is well versed in all aspects of reproductive endocrinology and assisted reproductive techniques. As a native of Germany he attracts many patients from Europe, who seek the treatment modality of egg donation mostly unavailable there using his ability to communicate in German, Spanish, and French. As director of the Audubon Reproductive Endocrinology and Infertility Clinic at Columbia University Medical Center, Dr. Zimmermann has shown a long term commitment to help economically disadvantaged couples have children. Dr. Zimmermann has been active in basic research since his arrival at Columbia University in 1994 and was awarded an NIH research grant (R01), which allowed him to study how formation of new blood vessels help to make the ovary and uterus the two most dynamic organs of the body. Dr. Zimmermann has special interest in ovarian physiology and ovarian aging. He has used this knowledge to help women preserve their fertility through egg cryopreservation.

Education & Research

Board Certified: Obstetrics & Gynecology, Reproductive Endocrinology & Infertility
Medical School: University of Hamburg, Germany
Residency Training: Yale-New Haven Hospital, New Haven, CT
Fellowship Training: Mayo Clinic, Rochester, Minnesota

PubMed Publications

Areas of Focus

For My Patients