Gary A. Mecklenburg has been a director since 2004. In 2006, he retired as President and Chief Executive Officer of Northwestern Memorial HealthCare, the parent corporation of Northwestern Memorial Hospital, an office he held since 1986. He also served as President and Chief Executive Officer of Northwestern Memorial Hospital from 1985 to 2002. He is currently an Executive Partner of Waud Capital Partners, L.L.C., a private equity investment firm.