Professional Directory

Mark P. Leondires, MD

Illume Fertility


761 Main Avenue Suite 200






Mark Leondires

Dr. Mark P. Leondires, Medical Director of Illume Fertiltity and, is board-certified in Reproductive Endocrinology & Infertility and Obstetrics and Gynecology.

For two consecutive years, Dr. Leondires has been selected through a peer-review process for Best Doctors in America, which represents the top five percent of physicians across the country. He is also a Castle Connelly “Top Doctor” for his work in the field of reproductive endocrinology.

Dr. Leondires received his undergraduate degree in biochemistry from Colby College. He earned his medical degree from the University Of Vermont College Of Medicine and completed his residency in Obstetrics and Gynecology at Maine Medical Center. This was followed by a fellowship in Reproductive Endocrinology at the National Institutes of Health in Bethesda, Maryland. Upon completion of his training he served as the Director of Assisted Reproductive Technologies at the Combined Federal Program for Reproductive Endocrinology.

Dr. Leondires serves on RESOLVE’s Physicians Council. Read why Dr. Leondires chooses to personally support RESOLVE at–partnerships/why-donate/physicians-council.html.