The reconciliation proposal and H.R. 3590 would maintain and put into effect a number of policies that might be difficult to sustain over a long period of time. Under current law, payment rates for physicians’ services in Medicare would be reduced by about 21 percent in 2010 and then decline further in subsequent years; the proposal makes no changes to those provisions. ...
The projected longer-term savings for the legislation also reflect an assumption that the Independent Payment Advisory Board established by H.R. 3590 would be fairly effective in reducing costs beyond the reductions that would be achieved by other aspects of the legislation.
Under the legislation, CBO expects that Medicare spending would increase significantly more slowly during the next two decades than it has increased during the past two decades (per beneficiary, after adjusting for inflation). It is unclear whether such a reduction in the growth rate of spending could be achieved, and if so, whether it would be accomplished through greater efficiencies in the delivery of health care or through reductions in access to care or the quality of care. The long-term budgetary impact could be quite different if key provisions of the legislation were ultimately changed or not fully implemented.
--The Congressional Budget Office's latest letter on the health care bill. HT: Greg Mankiw