John Quinlivan has been named market president for HCA’s TriStar Health System’s three hospitals in Northwest Georgia, and chief executive officer for Redmond Regional Medical Center, effective Monday.

Quinlivan will lead TriStar’s Northwest Georgia market, which includes Cartersville Medical Center, Polk Medical Center and Redmond Regional Medical Center.

“We believe a new market structure will encourage greater collaboration and synergies across our three hospitals, and establish the largest hospital system north of Atlanta and south of Chattanooga,” said Larry Kloess, president of TriStar Health System.

Quinlivan, who is replacing Brenda Waltz as CEO at Redmond, has served as CEO at Emory Johns Creek Hospital since 2007. Waltz is now the CEO of Garden Park Medical Center in Gulfport, Miss.

Under Quinlivan’s leadership, 34 new physicians were recruited to Emory Johns Creek in 12 different specialties and a new cardiac cath lab was launched.

Efforts are already under way to identify a new CEO for Emory Johns Creek Hospital.

Quinlivan joined HCA in 2003 after retiring from the U.S. Army as a lieutenant colonel and battalion commander, with service in multiple locations including Korea, the state of Washington and the Greater Atlanta area.

Quinlivan and his wife, Paige, are natives of Scottsboro, Ala., and are the parents of two grown children. They plan to relocate to Rome.