Jon S. Halbert was the cofounder and served in the leadership of AdvancePCS for over 15 years. Before its merger with CaremarkRx in 2004, AdvancePCS was the nation’s leading independent health improvement company serving over 75 million Americans.

Mr. Halbert has more than 20 years of management experience in the health care, energy and finance industries. He currently serves as Chairman of Phytel, Inc., a technology driven provider-led population health improvement company based in Irving, Texas as well as Chairman of The Pursuant Group, the nations top provider of fundraising services to America’s leading nonprofit organizations. Today Mr. Halbert and his wife Linda, are involved in a variety of commercial as well as benevolent organizations. Mr. Halbert currently serves as Vice Chairman of CitySquare, an organization that exists to fight the root causes of poverty by partnering with those in need. Working together as a community, they feed the hungry, heal the sick, house the homeless and renew hope in the heart of Dallas, Texas.