Crozer-Chester Medical Center is a 371-bed tertiary-care teaching hospital located on a 68-acre campus. Crozer was established in 1963 through the merger of Chester Hospital and Crozer Hospital and became one of the founding hospitals of CKHS in 1990. Crozer-Keystone Health Network (CKHN) is the largest primary care and specialty physician network in Delaware County, Pennsylvania, and is part of the Crozer-Keystone Health System (CKHS,) the largest employer in Delaware County, PA. CKHS is a community-focused healthcare system that delivers patient-centered, quality care in an efficient, cost-effective and caring manner.