Zitao Liu, MD, PhD, FACOG, is a distinguished reproductive endocrinologist and fertility specialist whose career sits at the intersection of rigorous science and deeply compassionate care. Board-certified in Obstetrics and Gynecology, Dr. Liu is a leading advocate for mild stimulation in assisted reproductive technology (ART), believing that the most effective treatments are also the most personalized. He brings a rare combination of extensive laboratory research and broad clinical experience to every patient relationship, crafting individualized care plans that reflect both scientific precision and genuine understanding.

Dr. Liu’s extensive research and clinical experience have driven his contributions to innovative fertility solutions. He developed the Mild-Stim protocol, was part of the pioneering research team behind the world’s first live birth via nuclear transfer in oocytes, and has built neural network-based AI tools to enhance the accuracy and safety of controlled ovarian stimulation. His work doesn’t simply advance fertility medicine — it reshapes what patients can hope for.

Beyond the clinic, Dr. Liu channels the same discipline and determination into long-distance running. He has completed full marathons (26.2 miles) across some of the world’s most iconic cities — Boston, New York City, Chicago, Tokyo, Berlin, Houston, Las Vegas, Changchun, and Qingyuan, among others — and has pushed further still, conquering 100-mile ultramarathons including the Old Dominion, Grindstone, and Doi Inthanon races. For Dr. Liu, the miles logged on the road mirror the philosophy he brings to medicine: that endurance, intention, and the courage to keep moving forward are what ultimately define the quality of any journey — personal or otherwise.