CEO

Karin Humphrey

A visionary builder with a passion for redefining healthcare, Karin has spent her career transforming cost management and scaling some of the most influential brands in pharmacy benefits. As CEO of Expion Health, she leads with bold purpose—driving innovation, shaping growth strategies, and championing a smarter, more sustainable future for pharmacy. With deep expertise across the PBM landscape, Karin empowers teams and clients alike to think bigger, move faster, and unlock meaningful change. She graduated Cum Laude from the University of Nevada, Las Vegas and holds an MBA with a focus on strategic leadership.

President, Service & Growth

Chris Westbrook

Chris drives Expion Health’s strategy for innovation, client success, and business expansion. A dynamic leader with deep roots in the pharmacy benefits space—including key roles at OptumRx—Chris brings a rare blend of strategic vision and relationship-driven leadership. He’s passionate about scaling what works, evolving what’s next, and delivering smarter, more impactful solutions for clients. At the core of his work is a belief that meaningful partnerships fuel meaningful progress. Chris holds an MBA from the University of Georgia.

Chief Transformation Officer

D.S. Suresh Kumar

A proven technology leader for over 20 years, Suresh has led strategy, innovation, and product development to help payors and providers reduce the cost of care and increase patient engagement. Suresh drives transformation by fostering a culture that is collaborative, curious, and passionate about technology. He holds a Bachelors of Engineering degree from the Birla Institute of Technology and Sciences.

Chief Financial Officer

Jeff Jollon

Jeff brings over two decades of financial leadership experience in the healthcare and pharmacy benefits management sectors to his role as Chief Financial Officer at Expion Health. Prior to joining Expion, Jeff served as a senior finance executive at Capital Rx, where he played a pivotal role in scaling financial operations and driving strategic growth initiatives. His extensive background includes leading financial planning and analysis, optimizing operational efficiencies, and implementing robust financial controls in complex healthcare environments. At Expion Health, Jeff oversees all financial functions, including corporate finance, strategic planning, and investor relations, ensuring the company's fiscal health aligns with its mission to transform healthcare cost management. He holds a Bachelor of Science in Business Administration from the University of Southern California and an MBA from the University of California, Los Angeles.

Head of Clinical & Analytic Strategy

Michelle Kamprath

Michelle transforms complex pharmacy data into strategic advantage through a clinical lens. With deep industry experience and a pharmacy-first mindset, she leads the development of impactful analytics and reporting solutions that drive clinical insights and deliver client value. Prior to Expion Health, Michelle spent 16 years at Optum Rx in key leadership roles spanning client strategy, clinical analytics, and trend insights. She holds an MBA from the University of Central Florida and an MS in Pharmacy Outcomes & Policy from the University of Florida.