Board of Directors

Barbara Desoer
Barbara J. Desoer
Chief Executive Officer, Citibank, N.A.
Barbara Desoer is the CEO of Citibank, N.A. , a role she assumed in April 2014, and is also a member of its Board of Directors. Citibank, N.A. accounts for approximately 75 percent of Citigroup's total assets. It is the primary entity within which Citigroup engages in activities through branches
Paul J. Diaz
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.
John  Nehra
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
Phyllis Yale
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

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