Meet the leaders behind Lumeris.
Physician-first. Tech-forward. Always human.
At Lumeris, transformation starts with a leadership team that knows healthcare from every angle. Founded by a primary care physician, our team combines clinical expertise with cutting-edge technology and product innovation to build solutions that work in the exam room—not just the boardroom.
They bring AI intelligence with a bedside manner, ensuring our platforms support the human relationships at the heart of great care. Together, they’re charting a path to a future where primary care works better for doctors, patients, and health systems alike.
Executive committee

David Carmouche, MD
Executive Vice President & Chief Clinical Transformation Officer

Jane Carpenter
Chief Communications Officer

John Fryer
Chief Growth & Corporate Development Officer

Ben Grabski
Chief Financial Officer

Gail Halterman
Chief Legal Officer

Julie Hammes
Chief People Officer

W. Michael Long
Chairman & Chief Executive Officer, Lumeris Group Holdings Corporation

Jean-Claude Saghbini
Chief Technology Officer & President of Technology Services

Mary Snyder
President & Chief Operating Officer, Lumeris Value-Based Care Enablement
Board of directors

John Burbank
Founder, Nimble Partners

Chuck Cory
Independent Director, Lumeris

Denis A. Cortese, MD
Foundation Professor and Director, Center for Healthcare Delivery and Policy Program, Arizona State University

L. John Doerr
Chairman, Kleiner Perkins

Matt Downs
Managing Director, Sandbox Industries

Lakshmi Halasyamani, MD
Chief Clinical Officer, Endeavor Health

Richard Jones
Board Member

W. Michael Long
Chairman & Chief Executive Officer, Lumeris Group Holdings Corporation