Jeffrey Wiegers

Jeffrey Wiegers serves as Chief Transformation Officer of Par Health, responsible for integration efforts, capturing synergies, and overseeing Environmental, Health, and Safety (EH&S) to support operational efficiency, quality excellence, and sustainable performance. 

Mr. Wiegers has over 25 years of leadership experience in quality and operations within complex pharmaceutical environments. Most recently, he served as Vice President of Quality and Global EH&S at Mallinckrodt Pharmaceuticals, managing a team of over 200 professionals across the U.S., Canada, and the EU, overseeing all cGXP activities and supporting the company’s strong compliance performance. His previous roles include Vice President of Quality Operations and Senior Director of Quality and Operations Integration.  

Mr. Wiegers holds a Bachelor of Science in Chemistry from the University of Illinois at Urbana–Champaign and is a former board member of the Missouri Valley Chapter of the Parenteral Drug Association (PDA).