Accountable Care Organizations (ACOs) Accountable Care Organizations (ACOs) are groups of doctors, hospitals, and other health care providers who come together voluntarily to give coordinated, high quality care to their patients. Coordinated care helps ensure that patients – especially the chronically ill – get the right care at the right time, while avoiding unnecessary duplication of services and preventing medical errors. ACOs help enhance efficiency and quality, and improve the overall patient experience. Baystate Health ACOs Baycare Health Partners Baystate Health Care Alliance Pioneer Valley Accountable Care (PVAC) Quality Care is Our Focus As a Baystate Health patient or family member, your input is important to us. If you're interested in promoting quality and enhancing the patient experience at Baystate, please consider becoming a Patient Family Advisory Council (PFAC) member.