Dr. Castro, MD, MMSc is an Associate Professor of Medicine at Harvard Medical School and Director of the Gynecologic Oncology Program at the MGH Cancer Center. Dr. Castro is a translational oncologist with experience leveraging nanotechnology and molecular imaging for solid tumor detection and serial profiling. He also directs the Cancer Program within the MGH Center for Systems Biology. He serves on the steering committee for the National Cancer Institute Liquid Biopsy Consortium. Dr. Castro graduated from the University of California, Berkeley and received his medical degree from the UCSF School of Medicine where he also completed his Internal Medicine residency training. Dr. Castro completed an adult oncology fellowship from the Dana-Farber/Mass General Brigham Cancer Care program. During this period, he also received a MMSc from Harvard Medical School. Dr. Castro has received funding from the National Institutes of Health, Department of Defense, Robert Wood Johnson Foundation, and Ovarian Cancer Research Fund, among various other sources. He has also been the recipient of the CDI/ECOR Physician Scientist Development Award.