As Chief Medical Officer of Pfizer, Dr. Habtezion leads Pfizer's Worldwide Medical & Safety organization responsible for ensuring that patients, physicians, and regulatory agencies are provided with information on the safe and appropriate use of Pfizer medications and vaccines. She leads Pfizer’s Institute of Translational Equitable Medicine (ITEM), an initiative spanning key research, development, and medical activities to close gaps in health disparity by leveraging science, data, and translational expertise to integrate equity across Pfizer’s end-to-end pipeline. Previously she was a practicing physician, scientist, tenured and endowed Professor of Medicine at Stanford University, where she led a large translational research lab focused on understanding disease mechanisms in gastrointestinal diseases. She authored over a hundred high impact publications in top peer-reviewed journals and served in multiple national and international scientific study sections, editorial boards, and is an elected member of the American Society for Clinical Investigation, and the Association of American Physicians.