On January 11, 2016, the federal Centers for Medicare & Medicaid Services (CMS) announced that 21 Medicare accountable care organizations (ACOs) were participating in the “Next Generation” ACO Model, which gives ACOs more flexibility to use telehealth services to treat patients in non-traditional health care settings. The Next Generation ACO Model uses a combination of fee-for-service and capitation, and participants can choose one of four payment systems and two risk tracks. The model also includes a prospectively (rather than retrospectively) set benchmark, allows beneficiaries to choose to be aligned to the ACO, and tests beneficiary incentives for . . .