Medicare Advantage, the private-plan alternative to traditional fee-for-service (FFS) Medicare, is threatening to swallow the program. MA enrollment has been growing by leaps and bounds and is projected to surpass 50% of total Medicare enrollment by next year.
That raises the danger, as J. Michael McWilliams points out in Health Affairs, that traditional fee-for-service (FFS) Medicare will lose its capacity to serve as a reliable benchmark for MA pricing. At present, the federal government pays MA plans a per-enrollee fee that's based, with regional variations and a complex array of adjustments, on the per-enrollee cost of FFS Medicare. Thanks to that tether, MA plans pay providers roughly what FFS Medicare pays them. And FFS Medicare pays rates set by the federal Center for Medicare and Medicaid Services, albeit with arguably too much influence from powerful physician groups* that help set Part B (physician) rates.