School of Medicine


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  • Ke-You (Yoyo) Zhang

    Ke-You (Yoyo) Zhang

    Clinical Assistant Professor, Pediatrics - Gastroenterology

    BioDr. Ke-You "Yoyo" Zhang is a board-certified pediatric transplant hepatologist and clinical assistant professor at Stanford University School of Medicine. She serves as Medical Director of both the Intestinal Transplant Program at Lucile Packard Children’s Hospital and the Vascularized Composite Tissue Transplant Program at Stanford Hospital. Dr. Zhang specializes in pediatric intestinal and liver transplantation, with research interests at the intersection of transplant immunology, stem cell therapeutics, and precision medicine.

    A graduate of the University of Connecticut School of Medicine, Dr. Zhang completed her pediatrics residency and fellowships in pediatric gastroenterology and transplant hepatology at Stanford. She has authored numerous peer-reviewed publications on topics including pediatric liver and intestinal transplantation, acute rejection, and pancreatitis, and she is a frequent invited speaker at international conferences. Dr. Zhang also directs clinical trials advancing novel therapies for intestinal transplant patients and holds leadership roles in national transplant and hepatology societies.

    Her work is recognized with the 2025 Early Career Clinical Excellence Award from Stanford's Department of Pediatrics. Dr. Zhang is deeply committed to improving outcomes and quality of life for children with complex gastrointestinal and liver diseases through innovative, multidisciplinary care.