Board of Directors
Pamela M. Arway
Former President, American Express International, Japan, Asia-Pacific, Australia region
Pamela M. Arway has been one of our directors since May 2009. From 2005 to 2007, Ms. Arway served as the president of American Express International, Japan, Asia-Pacific, Australia region, a global payment services and travel company. Ms. Arway joined the American Express Company in 1987 after
Charles G. Berg
Former Executive Chair, DaVita Medical Group
Charles G. Berg has been one of our directors since March 2007, and since November 2016, also serves as our executive chair of DaVita Medical Group. Mr. Berg served as executive chairman and as a member of the board of directors of WellCare Health Plans, Inc.
Barbara J. Desoer
Chief Executive Officer, Citibank, N.A.
Barbara J. Desoer has been one of our directors since October 2015. Ms. Desoer currently serves as the chief executive officer and a member of the board of directors of Citibank, N.A., a wholly owned subsidiary of Citigroup Inc. and a diversified global financial services company, since April 2014.
Executive Vice President and Chief Financial Officer, Turner Broadcasting System, Inc.
Pascal Desroches has been one of our directors since January 2017. Since 2014, Mr. Desroches has served as the executive vice president and chief financial officer of Turner Broadcasting System, Inc. (Turner), a Time Warner Company and a global media and entertainment company. Mr.
Paul J. Diaz
Operating Partner, Cressey & Company
Paul J. Diaz has been one of our directors since July 2007. Mr. Diaz currently serves as an Operating Partner of Cressey & Company, a private investment firm focused exclusively on investing in and building health care businesses. Mr. Diaz also serves as a director of Kindred Healthcare, Inc.
Peter T. Grauer
Chairman of the Board, Treasurer, and Former Chief Executive Officer, Bloomberg, Inc.
Peter T. Grauer has been one of our directors since August 1994 and our lead independent director since 2003. Mr. Grauer has been chairman of the board of Bloomberg, Inc., a business and financial information company, since April 2001, treasurer since March 2001 and was its chief executive officer
John M. Nehra
Former General Partner, New Enterprise Associates
John M. Nehra has been one of our directors since November 2000. From 1989 until his retirement in August 2014, Mr. Nehra was affiliated with New Enterprise Associates (‘‘NEA’’), a venture capital firm, including, from 1993 until his retirement, as general partner of several of its affiliated
Dr. William L. Roper
Chief Executive Officer, University of North Carolina ("UNC") Health Care System; Dean, UNC School of Medicine; and Vice Chancellor, Medical Affairs of UNC
Dr. William L. Roper has been one of our directors since May 2001. Dr. Roper has been chief executive officer of the University of North Carolina (‘‘UNC’’) Health Care System, dean of the UNC School of Medicine and vice chancellor for medical affairs of UNC since March 2004. Dr.
Kent J. Thiry
Chairman and Chief Executive Officer, DaVita Inc., and Chief Executive Officer, DaVita Medical Group
Kent J. Thiry has been our chief executive officer since October 1999 and chairman of the Board from October 1999 to November of 2012, at which time he became co-chairman through June of 2015. He has been the chairman of the board from June of 2015 to present.
Phyllis R. Yale
Senior Advisor, Bain & Company, Inc.
Phyllis R. Yale has been one of our directors since July 2016. Ms. Yale has been a Senior Advisor with Bain & Company, Inc. (“Bain”), a global management consulting firm, since July 2010. Ms. Yale was a partner with Bain from 1987 to July 2010, and was a leader in building Bain’s health care