Cambridge Health Alliance (CHA) is an innovative, award-winning health system that provides high quality care in Cambridge, Somerville, and Boston's metro-north communities. It includes three hospital campuses, a network of primary care and specialty practices, the Cambridge Public Health Department, and the Network Health plan. With this unique model, CHA is able to offer the finest health services, a diverse working environment, and a premier training experience for those interested in community-based medicine.