Name and Title Area State/Region Email
Mark Silberman
President and Laboratory Director 		 Southwest All Contact
Bobby Smithson
Chief Operating Officer 		 Southwest All

Contact
Darin Breitschopf
Sr. Vice President, Strategy and Managed Markets		 Southwest All Contact
John Carlson
Sr. Vice President, Finance		 Southwest All Contact
Debbie Klein
Vice President, Human Resources		 Southwest All Contact
Karen Pruett
Vice President, Quality Improvement		 Southwest All Contact
Brody Clark
Regional Vice President		 North and
East Texas		 Texas Contact
Jim Gebhart
Regional Vice President

Houston, Beaumont, Bryan,
College Station, Victoria,
Georgia, South Carolina, Southeast

 Texas Contact
Alex Estrada
Regional Vice President		 San Antonio, Kerrville, Laredo, South Texas, Eagle Pass, Corpus Christi, Rio Grande Valley South Texas Contact
Randy Reese
Regional Vice President		 West Texas,
Nevada, Oklahoma		 Texas
Nevada
Oklahoma		 Contact
Anthony Michael
Regional Vice President		 Alexandria, Baton Rouge, Lafayette,
Lake Charles, Monroe,
New Orleans, Shreveport		 Louisiana Contact
Mike Gordon
Director Information Technology		 Southwest All Contact