Jonathan M. Ellen, M.D.
President and Physician-in-Chief
All Children’s Hospital Johns Hopkins Medicine

Dr. Jonathan Ellen
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As president and vice dean of All Children’s Hospital Johns Hopkins Medicine, Dr. Jonathan Ellen is leading the transformation of All Children’s from a regional pediatric referral center to an academic children’s hospital and national leader in research, teaching and patient care.

Under Dr. Ellen’s visionary leadership, All Children’s Hospital Johns Hopkins Medicine launched an innovative new pediatric residency program and new fellowships, established the Johns Hopkins All Children’s Heart Institute and expanded programs dedicated to patient safety and quality. He forged collaborations among physicians at All Children’s Hospital in St. Petersburg and the Johns Hopkins Children’s Center in Baltimore, leading to new clinical and translational research spanning both campuses.

At the same time, Dr. Ellen has worked with leaders of the University of South Florida Morsani College of Medicine to strengthen the ACH-USF affiliation and their combined efforts in pediatric education and research. He is teaming up with a variety of community hospitals and providers in the Tampa Bay region and beyond to expand pediatric networks that ensure optimal care for children with complex and chronic medical conditions.

A proponent of community-based health initiatives, Dr. Ellen expanded All Children’s population health efforts with a focus on structural change to impact asthma, obesity and infant mortality. He pioneered this type of approach as a leader of the Adolescent Medicine Trials Network for HIV/AIDS Intervention, serving as principal investigator for Connect to Protect®, a community coalition-based program. His past research focused on preventing sexually transmitted infections, including HIV, in adolescents and the structural and environmental factors associated with disease transmission, and he received more than $25 million in research awards from the CDC, NIH and other agencies.

Dr. Ellen joined the Johns Hopkins University School of Medicine in 1999. He was named vice dean for All Children’s Hospital in 2011 and president of All Children’s Hospital in 2012. Previously he led the Center for Child and Community Health at Johns Hopkins and was director of the Department of Pediatrics and Neonatology at Johns Hopkins Bayview Medical Center. Dr. Ellen is a professor of pediatrics at the JHU School of Medicine and a professor of epidemiology and population, family and reproductive health in the Bloomberg School of Public Health. He has trained more than 40 pre- and post-doctoral fellows in adolescent medicine and public health and authored more than 200 peer-reviewed scientific articles, reviews, editorial and book chapters.

After graduating from the University of Pennsylvania, he received his medical degree from Temple University and completed an internship and residency in pediatrics at Children’s Hospital of Philadelphia. Dr. Ellen completed a fellowship in adolescent medicine at the University of California, San Francisco (UCSF), followed by fellowships in sexually transmitted diseases at UCSF, the San Francisco Department of Public Health, and the Centers for Disease Control and Prevention.

Dr. Ellen lives in St. Petersburg. He and his wife, attorney Margaret de Lisser, have a son and a daughter.