John Lewin III, PharmD, MBA, FASHP, FCCM, FNCS, has joined ChristianaCare as Vice-President of Pharmacy Services. Lewin brings more than 25 years’ experience in pharmacy and healthcare to ChristanaCare.
In the new position, Lewin will lead all aspects of pharmacy strategy, operations and clinical services across the hospital system, advancing ChristianaCare’s commitment to safe, high-quality, patient-centered care.
Most recently, Lewin served as the Chief Medical Officer at On Demand Pharmaceuticals, where he led pharmacy, quality and regulatory initiatives and supported federal partnerships to improve medication access. Prior to that, Lewin spent 16 years at Johns Hopkins Hospital and Johns Hopkins University School of Medicine, where he held multiple leadership roles and led efforts to improve medication safety, streamline operations and strengthen collaboration across care teams.
Lewin holds a Doctor of Pharmacy from Temple University and an MBA from Johns Hopkins Carey Business School. He completed a PGY1 and a PGY2 critical care residency at the Medical University of South Carolina. A recognized leader in critical care pharmacy, he has authorized numerous publications and presented nationally and internationally.

