About • Leadership Our leadership. Executive Action Committee W. Michael Long Chairman and Chief Executive Officer, Essence Group Holdings Corporation and Lumeris Ben Grabski Chief Financial Officer Jeff Smith Chief Commercial Officer, Population Health Gail Halterman Chief Legal Officer Debbie Zimmerman, MD Corporate Chief Medical Officer, Lumeris and Essence Healthcare Jeff Carroll Chief Revenue Officer Jean-Claude Saghbini Chief Technology Officer Leadership John Fryer Senior Vice President, Head of Growth and Market Development, Lumeris | President, Tribus Valerie Simon Senior Vice President, Chief of Marketing and Communications Ben Alexander, MD Senior Vice President, Digital Health and Analytics Julie Hammes Senior Vice President, People and Culture Joe Satorius Senior Vice President, Strategic Initiatives & ACO Programs Martha Butler Senior Vice President, Plan Operations Board of Directors W. Michael Long Chairman and Chief Executive Officer, Essence Group Holdings Corporation and Lumeris James Blackledge Chairman & CEO of Mutual of Omaha John Burbank Managing Member and Chief Investment Officer, Passport Capital Denis A. Cortese, MD President and Chief Executive Officer Emeritus, Mayo Clinic Director, Healthcare Delivery and Policy Program, Arizona State University Charles “Chuck” Cory Director, Lumeris L. John Doerr Partner, Kleiner Perkins Caufield & Byers Matt Downs Managing Director, Sandbox Industries David Feinberg, M.D. President and Chief Executive Officer, Cerner Richard Jones Board Member