Senate Budget Chair Sheldon Whitehouse (D-RI) is calling to boost incentives to participate in primary care ACOs after a new CBO estimate indicated primary care ACOs, along with independently run ACOs and ACOs with higher baseline spending, are more likely to produce savings. The April 16 CBO report, which breaks down categories of ACOs that are more and less likely to produce savings, comes as House Republicans call for a broader analysis of spending from the Center for Medicare and...