Guy I. Sydney, MD
Fellow, Department of Internal Medicine
Clinical Fellow
Dr. Sydney matriculated into the Investigative Medicine Program in 2025. He earned his medical degree from European University Cyprus School of Medicine and subsequently joined the Children’s Hospital of Philadelphia as a Visiting Researcher. He completed his internal medicine residency at Southern Illinois University School of Medicine and is currently a research-track fellow in the Section of Endocrinology and Metabolism. His PhD research, conducted under the mentorship of Dr. Kevan Herold, focuses on immunologic mechanisms underlying the pathogenesis of type 1 diabetes.