Mark Nosacka, C'89, became the new CEO at Good Samaritan Medical Center, one of five Palm Beach Country hospitals owned by Dallas-based Tenet Healthcare Corp. Nosacka brings more than two decades of health care experience to the role.  Previously, he has served as president and chief executive officer of Community Health Partners in Loraine, Ohio and chief operating officer of Greenbrier Valley Medical Center in Ronceverte, West Virginia.  In these roles, Nosacka was responsible for hospital operations and ensuring the delivery of quality care.