Dr. Lewin has worked on the Pharmacy on Demand platform since 2013, when he served as a subject matter expert for the Defense Advanced Research Projects Agency (DARPA). Prior to joining On Demand Pharmaceuticals, Dr. Lewin was the chief pharmacist for the Johns Hopkins critical care & surgery pharmacy for 11 years, with overall responsibility for the department’s clinical and operational activities, clinical research, drug supply chain/procurement and management functions. Dr. Lewin is an associate professor of anesthesiology & critical care medicine at the Johns Hopkins University School of Medicine.  Dr. Lewin earned his PharmD degree from the Temple University School of Pharmacy, his MBA from the Johns Hopkins University Carey School of Business, and completed a PGY1 and PGY2 critical care residency at the Medical University of South Carolina.