Otis W. Brawley, M.D., MACP, FRCP(L), FASCO, FAACR, FACE is the Bloomberg Distinguished Professor of Oncology and Epidemiology at Johns Hopkins University. He is an authority on cancer screening and prevention. His work also focuses on how to close racial, economic, and social inequalities in the prevention, detection, and treatment of cancer. It is concentrated on the appropriate practice of evidence-based medicine, efficiency in healthcare and the waste that occurs when there is not orthodox interpretation of science. Dr. Brawley was chief medical and scientific officer of the American Cancer Society from 2007 to 2018. Brawley is a Fellow of the Royal College of Physicians (London), a Fellow of the American Society of Clinical Oncology, a Fellow of the Academy of the American Association for Cancer Research, and a Fellow of the American College of Epidemiology. He is one of less than two thousand physicians ever to be named a Master of the American College of Physicians. He is an elected member of the National Academy of Medicine