Peacock has been chief of operations at Cleveland Clinic since 2009. Cleveland Clinic is a multisite healthcare delivery system that employs more than 51,000 caregivers including the 42-building main campus, 10 regional hospitals, 18 family health centers and more than 150 outpatient locations. Peacock oversees 1,500 caregivers, 10 vendors and 2,400 vendor employees. He joined Cleveland Clinic in 2005 and served in a variety of operational support roles across the organization. Before joining Cleveland Clinic, Peacock served 24 years in the U.S. Navy.