Ezekiel Jonathan "Zeke" Emanuel (born September 6, 1957) is an American oncologist, bioethicist and senior fellow at the Center for American Progress. He is the current Vice Provost for Global Initiatives at the University of Pennsylvania and chair of the Department of Medical Ethics and Health Policy. Previously, Emanuel served as the Diane and Robert Levy University Professor at Penn. He holds a joint appointment at the University of Pennsylvania School of Medicine and the Wharton School and was formerly an associate professor at the Harvard Medical School until 1998 when he joined the National Institutes of Health.