Meet our forward-thinkers.

Mark Knickrehm

Chairman and
Chief Executive Officer

Greg Adler

Senior Vice President, Implementation Practice

Bill Allison

Chief Client Officer

Claudia Barlow

Chief People Officer

Jesse Bradford

Senior Vice President & General Manager, Data Analytics

Kathy Bristow

Senior Vice President, Population Health Management

Gary Call, M.D.

Chief Medical Officer

Mike Connolly

Chief Operating Officer

Steve Costalas

Chief Legal Officer

Deb Das

President, India Operations and Global Delivery

Greg Fischer

Senior Vice President, Coordination of Benefits and Payment Integrity

Joe Fraser

Senior Vice President,
Mid-East Sector Client Leader

Nathan Funk

Chief Growth Officer

Peter Gray

Senior Vice President,
New England Sector Client Leader

Rich Johnson

Senior Vice President,
Midwest Sector Client Leader

Jaffry Mohammed

Chief Delivery &
Transformation Officer

Philip Poley

Senior Vice President, South Sector Client Leader

Rick Pope

Senior Vice President,
Mid-Atlantic Sector Client Leader

Colleen Ritchie

Chief Customer Experience Officer

Den Roenfeldt

Chief Assurance Officer

Karen Shields

Strategic Advisor

Ron Singh

Senior Vice President, Cost Containment Services

Stephanie Uder

Senior Vice President, Pharmacy

Chris Van Vlack

Senior Vice President,
West Sector Client Leader

Fred Wettergren

Senior Vice President,
Account Operations

Susan Worthy

Chief Marketing Officer