William G. Kaelin

William G. Kaelin, Jr., MD, is the 2019 Nobel Prize recipient in medicine or physiology. He was a medical oncology clinical fellow at the Dana-Farber Cancer Institute (DFCI), and a postdoctoral fellow in the laboratory of Dr. David Livingston, where he began his studies of tumor suppressor proteins. He became an independent investigator at the DFCI in 1992, and a Howard Hughes Medical Institute Investigator and Professor of Medicine at Harvard Medical School in 2002. The 2019 Nobel was awarded jointly to Kaelin, Sir Peter J. Ratcliffe and Gregg L. Semenza for their discoveries of how cells sense and adapt to oxygen availability.

Dr. Kaelin received his MD from Duke University and was a house officer and chief resident in internal medicine at Johns Hopkins Hospital.