Providers and analysts are calling new value-based physician payment models announced last week by the CMS game-changers, potentially signaling a new era in which many providers are taking on downside risk and responsibility for total cost of care.  The five new voluntary payment models, which are available under the Primary Care First heading through the CMS Center for Medicare and Medicaid Innovation, vary in levels of risk, but all involve providers receiving fixed payments based on their population of Medicare beneficiaries . . . READ MORE