Freda Lewis-Hall is executive vice president and chief medical officer of Pfizer. She leads the company's work to ensure the safe, effective and appropriate use of its medicines and vaccines and to collaborate with members of the medical research community to accelerate the development of new treatments and improve outcomes for patients. Lewis-Hall is chairwoman of the Cures Acceleration Network at the National Institutes of Health and serves on the boards of the Patient-Centered Outcomes Research Institute, Harvard Medical School, Tenet Healthcare Corp. and Save the Children. A passionate advocate for empowering patients through access to medical information, she appears frequently on TV shows including "The Doctors" and "Dr. Phil" and blogs on GetHealthyStayHealthy.com. She is the author of "Make Your Mark: Why Legacy Still Matters." Lewis-Hall earned her undergraduate degree from Johns Hopkins University and her medical degree from Howard University College of Medicine.