PressRoom

Leadership



George Paz
Chairman & Chief Executive Officer

George Paz drives Express Scripts' strategy, ensuring our business model of alignment with clients’ best interests delivers better, more cost-effective health outcomes for millions of people. George joined Express Scripts in 1998 as Senior Vice President and Chief Financial Officer and became President in 2003. In 2005 he was named Chief Executive Officer and the following year was elected chairman of the board. He currently serves as a member of the board of directors for Honeywell, Inc. George holds a bachelor's degree in business administration and accounting from the University of Missouri - St. Louis and is a member of the American Institute of Certified Public Accountants.

Keith Ebling
Executive Vice President & General Counsel

Keith Ebling leads all legal and compliance matters, government affairs and business development opportunities at Express Scripts. He joined Express Scripts in 1996 and has served the company in numerous legal and business roles; in 2008 he was named Executive Vice President and General Counsel. Keith is a member of the American Health Lawyers Association and various bar associations, and he graduated with distinction from Saint Louis University School of Law. Additionally, Keith earned his MBA at the Olin School of Business at Washington University in St. Louis. Keith reports directly to George Paz.

Christine Houston
Senior Vice President - Operations

Chris Houston leads all core operations, including pharmacies, specialty operations, call centers and client services. She joined the company in 1997 and has held numerous leadership positions in information technology, our specialty pharmacy business and operations. Before being appointed to her current position, Chris most recently served as Senior Vice President of Supply Chain, where she oversaw Express Scripts’ contracting with pharmaceutical companies and retail pharmacies. She holds a bachelor's degree in computer science from Saint Louis University, where she graduated with distinction. Chris reports directly to Tim Wentworth.

Ed Ignaczak
Executive Vice President - Sales & Marketing

Ed Ignaczak leads Express Scripts' sales and marketing functions. Ed joined Express Scripts as Vice President and General Manager of the national employer division following the acquisition of ValueRx in April 1998. He has been responsible for the sales, marketing and account management organizations, serving in a number of leadership positions, including as Senior Vice President of Sales and Account Management, before taking on his current role. Ed earned dual bachelor's degrees in business administration and economics from the University of Pittsburgh and holds a master's degree in marketing and international business from Duquesne University. Ed reports directly to Tim Wentworth.

Steve Miller, MD
Senior Vice President & Chief Medical Officer

Dr. Steve Miller's focus is on supporting government relations, leading the Pharmacy & Therapeutics committee, managing the Medical Affairs team and interfacing with client groups. Steve has served as Chief Medical Officer since 2006 and has been a valuable leader in all clinical matters, including our e-prescribing initiatives, our specialty offering and overall product development. He received his medical degree from the University of Missouri-Kansas City, and he trained in the Pathology and Research fellowship at the University of Alabama at Birmingham and in cardiology at the University of California, San Francisco. Steve also earned his MBA at the Olin School of Business at Washington University in St. Louis. Steve reports directly to Tim Wentworth.

David Norton
Senior Vice President - Supply Chain Management

David Norton oversees all enterprise-wide procurement activities, including negotiating and contracting with pharmaceutical companies and retail entities. He also manages the company’s subsidiaries, including United BioSource Corporation, our Specialty Distribution business and our business in Canada. In addition, David has direct responsibility for managing corporate real estate, safety and security. He joined the company in 2002 and has served in several capacities across the organization including IT, operations, planning, management support, business development and strategy. David earned a bachelor's degree in business administration from San Francisco State University. He reports directly to Tim Wentworth.

Cathy Smith
Executive Vice President & Chief Financial Officer

Cathy Smith is responsible for overseeing all financial activities and partnering with senior management to develop and lead the company’s strategic direction. Within her responsibilities are capital allocation, financial planning and analysis, controllership, treasury, risk and insurance, and investor relations. Prior to joining Express Scripts in 2014, Cathy was Executive Vice President of Strategy and Chief Financial Officer for Walmart International. She holds a bachelor’s degree in business economics from the University of California and a master’s degree in business administration from the Marshall School of Business at the University of Southern California. Cathy reports directly to George Paz.

Glen Stettin, MD
Senior Vice President - Clinical, Research & New Solutions

Dr. Glen Stettin heads up clinical products, Consumerology®, the therapeutic resource centers, specialty, channel, trend and formulary management, as well as integrated health solutions. Glen joined Express Scripts when the company merged with Medco in April 2012. During his 17 years at Medco, Glen served in leadership roles in the clinical, operations, technology and product organizations. Glen earned his bachelor and medical degrees through Lehigh University and the Medical College of Pennsylvania. He completed his residency in internal medicine at the University of California, San Francisco, where he also served as Medical Chief Resident at Moffitt-Long Hospital, Fellow in cardiology and Robert Wood Johnson Foundation Clinical Scholar at UCSF and Stanford University. Glen reports directly to Ed Ignaczak.

Sara Wade
Senior Vice President & Chief Human Resources Officer

Sara Wade is responsible for aligning Express Scripts' human resources and business strategies, leading the development and implementation of human resources initiatives, and ensuring the continued development of a strong and effective human resources organization. Sara joined Express Scripts in 2009, serving as Vice President, Benefits and Compensation, before moving into her current position. She earned a bachelor's degree in accounting at the University of Illinois at Urbana-Champaign and an MBA at the Olin School of Business at Washington University in St. Louis. Sara reports directly to George Paz.

Tim Wentworth
President

Tim Wentworth is responsible for all aspects of the company’s core business, including sales and account management, information technology, operations, research and new solutions, and supply chain management. Tim joined Express Scripts when the company merged with Medco in April 2012. At Medco, he led the employer and key accounts organizations for nearly 14 years. He also served as President and CEO of Accredo, the company's specialty pharmacy. He earned a bachelor's degree in industrial and labor relations from Cornell University and an associate's degree in business from Monroe Community College. Tim reports directly to George Paz.

Gary Wimberly
Senior Vice President & Chief Information Officer

Gary Wimberly manages overall IT strategy and performance, specifically focusing on innovative solutions, process improvements and improving productivity. Gary is responsible for ensuring the information systems are aligned with business strategies. He joined Express Scripts in 2004, serving in a number of leadership roles in the IT organization before moving into his current position. He earned a bachelor's degree in computer science from the University of Missouri-Columbia. Gary reports directly to Tim Wentworth.

Governance
Get to know our Board of Directors.