President Proposes Medicare Prior-Authorization Authority For All Fee-For-Service Items-thegraysheet: In the proposal submitted to Congress March 4, the administration repeated its unsuccessful request from last year that would have required CMS to make physicians seek prior approval before ordering power mobility devices or advanced imaging services. But, in a new proposal, the budget request would also extend CMS’ authority to require prior authorization to all Medicare fee-for-service items, “particularly those service items that are at the highest risk for improper payment.”