Charles G. Berg has been one of our directors since March 2007. Mr. Berg served as executive chairman and as a member of the board of directors of WellCare Health Plans, Inc. ("WellCare"), a provider of managed care services for government-sponsored healthcare programs from January 2008 to December 2010. Mr. Berg served as non-executive chairman of the board of directors of WellCare from January 2011 to May 2013. From January 2007 to April 2009, Mr. Berg was a senior advisor to Welsh, Carson, Anderson & Stowe, a private equity firm. From April 1998 to July 2004, Mr. Berg held various executive positions with Oxford Health Plans, Inc. ("Oxford"), a health benefit plan provider, which included chief executive officer from November 2002 to July 2004 when Oxford was acquired by UnitedHealth Group, president and chief operating officer from March 2001 to November 2002 and executive vice president, medical delivery from April 1998 to March 2001. From July 2004 to September 2006, Mr. Berg served as an executive of UnitedHealth Group and was primarily responsible for integrating the Oxford business. Mr. Berg currently serves on the Operating Council of Consonance Capital Partners, a private equity firm. Mr. Berg is an experienced business leader with significant experience in the healthcare industry and brings an understanding of the operational, financial and regulatory aspects of our industry and business.