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, more than 20 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.