Onisis Stefas

CEO, VIVO Health

Onisis Stefas, PharmD serves as CEO, Vivo Health since March 2022 and  Vice President and Chief Pharmacy Officer at Northwell Health where he leads their Pharmacy Service Line. In that role, he developed the strategy and directs the implementation of programs, policies and procedures designed to integrate the health system’s pharmacy services. He also oversees the management, financial operations and development of Northwell’s central pharmacy and for-profit subsidiary Vivo Health, which includes PBM, specialty, mail order, retail and pharmacy consulting services.

Dr. Stefas joined Northwell Health in 2010 as director of pharmacy and clinical services at Long Island Jewish Forest Hills. He then assumed roles with progressive responsibilities, such as director of pharmacy for Vivo Health, senior director of pharmacy for North Shore University Hospital and vice president of pharmacy operations for the health system. Prior to joining Northwell, Dr. Stefas held numerous leadership positions at Fortune 500 companies, including CVS Caremark and the Target Corporation.

After graduating from the Albany College of Pharmacy with a Doctor of Pharmacy in 2002, Dr. Stefas went on to receive his Master in Business Administration from Hofstra University in 2010. He is a clinical assistant professor of pharmacy practice at St. John’s University, and holds a position on its Advisory Board.

Dr. Stefas is involved in several professional affiliations, including the American Society of Health System Pharmacists, New York State Council of Health System Pharmacists and the Long Island Society of Health System Pharmacists.