Sibley Memorial Hospital has appointed a Johns Hopkins executive to be its new president, replacing Robert Sloan, who is retiring as president and chief executive after 27 years, the hospital announced Tuesday.

Sibley, which was acquired by the Baltimore-based health care system in October 2010, said Richard “Chip” Davis will replace Sloan on July 6. Davis is currently vice president for patient safety and executive director for ambulatory services at Johns Hopkins Medicine.

Davis joined Hopkins in 1993 and established the Johns Hopkins Medicine Center for Innovation. He has a doctorate from Hopkins’ Bloomberg School of Public Health.