07/08/2025
"After 20 years of leadership, John Marshall, MD will be stepping down as the division chief of Medical Oncology at MedStar Georgetown University Hospitall. Dr. Marshall will remain in practice with our GI oncology disease group and will continue to serve as the chief medical officer of the Lombardi Comprehensive Cancer Center.
During his tenure, our cancer services have expanded in support of our mission, including through the number of patients served, the advancement of cancer treatments, and through clinical research expansion. Dr. Marshall pioneered the integration of precision medicine into everyday oncology practice. In 2009 he founded the Otto J. Ruesch Center for the Cure of GI Cancers, and in 2015 launched the Precision Oncology Alliance to harness molecular profiling for better patient outcomes. Beyond his many scientific achievements, Dr. Marshall’s leadership brought compassion and an unwavering focus on patient-centered care.
We are pleased to announce that Stephen Liu, MD, associate professor of Medicine and director of Thoracic Oncology at the Georgetown Lombardi Comprehensive Cancer Center, will be taking over as division chief of Medical Oncology on Aug. 15, 2025. Dr. Liu has been with MedStar Georgetown since 2013. Dr. Liu graduated cm laude from Johns Hopkins University before receiving his medical degree at the University of Maryland. He completed internal medicine training at the University of Pennsylvania and completed a fellowship in hematology and oncology at the University of Southern California, after which he received further specialized training in genomic medicine at the Translational Genomics Research Institute (TGen). He has led early-phase drug development efforts in thoracic malignancies, authored papers in New England Journal of Medicine, Journal of Clinical Oncology, Lancet Oncology, and more, and earned numerous teaching awards for his mentoring. He currently leads the Thoracic Oncology section and the Phase I Developmental Therapeutics group in Lombardi.
We are excited to support Dr. Liu as he builds on Dr. Marshall’s legacy and leads our mission to deliver tomorrow’s treatments today.
Please join us in thanking Dr. Marshall for his extraordinary service and in welcoming Dr. Liu to his new leadership role." MedStar Georgetown University Hospital