William Guyer, PharmD

Chief Development Officer

Dr. Guyer joined Corcept as its Chief Development Officer in August 2021. He brings more than 30 years of medical and clinical experience to the role, including nearly 20 years in positions of increasing seniority at Gilead Sciences. From 2015-2021, he served as Senior Vice President of Gilead’s global Medical Affairs team, with responsibility for developing innovative strategies for advancing compounds from discovery to commercialization in a wide range of complex diseases, including infectious diseases, liver diseases, cancer and inflammatory disorders. His work included designing, implementing and supporting company- and investigator-sponsored studies, collaborative studies, real-world data generation and health outcomes research, as well as scientific and medical communications and education programs across Gilead’s entire portfolio of medications. Prior to joining Gilead, Dr. Guyer was the Director of the HIV Pharmacy and Outpatient Infusion Center Services for Kaiser Permanente in Southern California. He is a clinical pharmacist and holds a PharmD from the University of Southern California.