Dr. Hahn is the William Rosenberg Professor of Medicine in the Department of Medical Oncology at Dana-Farber Cancer Institute and Harvard Medical School and an Institute Member of the Broad Institute of MIT and Harvard. He serves as an Executive Vice President and the Chief Operating Officer at the Dana-Farber Cancer Institute.

Dr. Hahn has made numerous discoveries that have informed our current
molecular understanding of cancer. His laboratory has pioneered the use of integrated functional genomic approaches to identify and validate cancer targets. The tools, models and approaches that his laboratory has developed are widely used worldwide to discover and validate molecularly targeted cancer therapies.

Dr. Hahn has served as the President of the American Society for Clinical
Investigation and has been elected to the Association of American Physicians and the National Academy of Medicine. Dr. Hahn has been the recipient of many honors and awards including the Wilson S. Stone Award from M.D. Anderson Cancer Center for outstanding research in cancer (2000), a Howard Temin Award from the National Cancer Institute (2001), the Ho-Am Prize in Medicine (2010), the Richard and Hinda Rosenthal Award from AACR (2015) and the Claire and Richard Morse Award (2019). He has been elected to the American Society of Clinical Investigation, American Association of Physicians, the National Academy of Inventors and the National Academy of Medicine.