International Egg Bank (IEB) is a premier international egg donation, matching and state-of-the-art banking facility. Offering several oocyte programs  for intended parents,  IEB offers the convenience and luxury of working within your timeline. With competitive pricing and several program offerings, IEB fits every need.

Meet Our Staff

Dr. Amos Madanes

One of the few board-certified reproductive endocrinologists in Illinois, Dr. Amos Madanes has been helping infertile couples since 1979. Over the course of his career, he has developed several revolutionary assisted-reproduction procedures and has thus, come to be internationally known as an innovator and leader in the field of reproductive endocrinology. In fact, he is responsible for the first pregnancy ever in the United States from a non-surgical intra-tubal insemination procedure. The incredible results of this technique have brought new hope to couples, particularly those dealing with male-factor infertility.

Dr. Madanes earned his Doctor of Medicine degree from Tel Aviv University in Israel. After completing specialty training at Tufts University in Boston, he underwent two additional years of reproductive endocrinology training at Harvard University School of Medicine and Tufts.


Dr. Jehoshua Dor

Professor Jehoshua Dor is the director of the Center of Reproductive Medicine and Infertility at the Sheba Medical Center in Tel-Aviv, Israel. He is also a Professor of Obstetrics and Gynecology at the Sacker School of Medicine at the Tel Aviv University. In 1981, Dr. Dor delivered the first IVF baby in Israel. From 1999 to 2001 he was acting as the Elected Chairman of the Israel Fertility Association. Dr. Dor delivered the first baby following transplantation of cryopreseved ovarian tissue back to the ovary in 2005. In 2008, he delivered the first babies (twins) in Israel following treatment of IVM (in-vitro maturation).

Prof. Dor has authored over 130 original scientific papers and is well recognized for his contribution to the field of reproductive endocrinology and assisted reproductive technologies.



Dr. Irit Granot

Dr. Irit Granot has over 20 years of experience directing the world’s top in vitro fertilization (IVF) laboratories, including Kaplan Medical Center’s. She has served as head of the IVF and andrology labs at Herzliya Medical Center in Israel since 2014. Dr. Granot is also a member of the Advisory Board of the Israeli Ministry of Health on IVF labs, as well as a member of the Israeli Fertility Research Association.

Dr. Granot has continuously adopted and incorporated the most advanced technologies such as vitrification of oocytes and embryos, PGD/PGS for day-3 embryos as well as for blastocysts, and using time-laps-embryoscope system for embryo culture. In addition to her clinical work, Dr. Granot has been conducting clinical and basic research in collaboration with The Weizmann Institute of Science on different topics in reproduction. Additionally, she has authored numerous scientific publications, regularly collaborating with the Journal of Assisted Reproduction and Genetics.

Dr. Granot earned her PhD from the Hebrew University of Jerusalem and was a post-doc fellow at The Weizmann Institute of Science, Rehovot.


Rebecca Mateski, MS, MEd

International Egg Bank’s Laboratory Coordinator, Rebecca Mateski, has over 18 years of laboratory and management experience. She is an expert in the areas of embryology and andrology, with extensive knowledge of sperm, oocyte and embryo freezing protocols.

Mrs. Mateski was educated at the University of Illinois, where she received a Master’s degree in Molecular Endocrinology and published many research papers. She has also received a M.Ed. Secondary Education degree in Biology from St. Francis University. The latter has provided her with a significant background in planning and working within a structured, time-sensitive management system.