David M. Dill

Mr. Dill has served as a director of PSI since 2005. He has served as an Executive Vice President of LifePoint Hospitals, Inc., or LifePoint, a non-urban hospital company, since February 2008, and as the Chief Operating Officer since April 2009. From July 2007 until April 2009, Mr. Dill served as the Chief Financial Officer of LifePoint. Prior to joining LifePoint, Mr. Dill served as Executive Vice President of Fresenius Medical Care North America and as Chief Executive Officer in the East Division of Fresenius Medical Care Services, a wholly owned subsidiary of Fresenius Medical Care AG & Co. KGaA, a publicly-traded dialysis services company. Mr. Dill previously served as Executive Vice President, Chief Financial Officer and Treasurer of Renal Care Group, Inc., a publicly-traded dialysis services company, from November 2003 until Renal Care Group, Inc. was acquired by Fresenius Medical Care on March 31, 2006.