David B. Agus (/ˈeɪgəs/) is an American physician and author who serves as a professor of medicine and engineering at the University of Southern California Keck School of Medicine and Viterbi School of Engineering and the Founding Director and CEO of USC’s Lawrence J. Ellison Institute for Transformative Medicine. He is also the cofounder of several personalized medicine companies and a contributor to CBS News on health topics.