Designed for health care organizations and providers that are already experienced in coordinating care for patients across care settings. It allows these provider groups to move more rapidly from a shared savings payment model to a population-based payment model on a track consistent with the Medicare Shared Savings Program. It also works in coordination with private payers by aligning provider incentives, which is intended to improve quality and health outcomes for patients across the ACO, and achieve cost savings for Medicare, employers and patients.