Dr. Mark P. Leondires is the Founder and Medical Director of Illume Fertility and Gay Parents To Be. Board certified in Obstetrics & Gynecology and Reproductive Endocrinology & Infertility, he serves on RESOLVE’s Physician Council, ASRM’s Diversity, Equity & Inclusion Task Force, and the board of The Nest Egg Foundation. Co-author of Building Your Family: The Complete Guide to Donor Conception, Dr. Leondires is a proud member of the LGBTQ+ community and a parent through IVF with egg donation and surrogacy.
Fertility Treatment | IVF | Advocacy | Success Rates
By:
Mark P. Leondires, M.D.
April 19th, 2026
At a glance → More than 100,000 babies were born through IVF in the U.S. in 2024, a new national record → IVF now accounts for nearly 3% of all U.S. births, or about 1 in 36 babies → Single embryo transfer is now standard for most patients, helping make IVF safer than in the past → National averages are helpful, but your age, diagnosis, ovarian reserve, clinic, lab, and treatment plan matter more As the founder of Illume Fertility, I’ve followed national IVF outcome data closely for decades. SART’s newest report matters not only because it set a record, but because it shows how fertility treatment is evolving and what that means for patients considering care today.
IVF | Advocacy | Affording Care
By:
Mark P. Leondires, M.D.
December 11th, 2025
Infertility affects millions of people every year, with about 1 in 5 couples in the United States experiencing difficulties getting pregnant or carrying a pregnancy to term. Unfortunately, military insurance coverage still does not fully cover the treatment of infertility connected to service-related injuries. Keep reading to learn about the military discounts we offer here at Illume Fertility and how they can help defray the cost of fertility treatment.
By:
Mark P. Leondires, M.D.
October 21st, 2024
Last updated August 8, 2025 Selecting a surrogacy agency is one of the most important steps on your family-building journey, but it can also be one of the most overwhelming parts of the process. In this guide, a surrogacy expert (and father through surrogacy himself) shares how to compare surrogacy agencies and find the best one for you.
LGBTQ+ Family Building | Surrogacy | Donor Conception | Egg Donor
By:
Mark P. Leondires, M.D.
April 24th, 2024
Last updated August 15, 2025 Choosing an egg donor is one of the first big decisions you'll need to make as a dad-to-be pursuing surrogacy. In this guide, we provide a comprehensive overview of the emotional, medical, and legal aspects to help you navigate the process of finding an ideal egg donor.