Two key congressional committees have unveiled a proposal to end the annual "doc fixes." Wednesday's draft from the Senate Finance and House Ways and Means Committees outlines a gradual shift that would freeze doctor reimbursement rates for 10 years. It would also provide bonuses to providers who embrace alternative payment models that reward quality of care. Lawmakers are hoping to enact a permanent repeal by Dec. 31 of the "sustainable growth rate" formula that reimburses doctors for Medicare, and move Medicare toward performance-based payments. Lawmakers from both sides of the aisle praised the proposal as an "important step" toward improving...