Dr. Lewis-Hall is a pioneer in medicine, having spent more than 40 years on the frontlines of healthcare as a clinician, researcher, and leader in the biopharmaceutical and life sciences industries. Most recently, at Pfizer, Inc, Dr. Lewis-Hall served more than ten years on the executive leadership team as Executive Vice President, Chief Medical Officer, and later Chief Patient Officer. Her tenure at Pfizer was devoted to ensuring the safe, effective, and appropriate use of medicines and vaccines produced by the pharmaceutical giant, from the first clinical trial to its last use.