
Medicare Advantage plans, formally Part C of Medicare, offer Medicare beneficiaries an alternative to Original Medicare and have been successful in signing up Medicare-eligible Americans. Medicare Advantage plans are increasingly popular; enrollment in these plans as a share of the eligible Medicare population has jumped from 19% in 2007 to 54% in 2024. That figure represents a huge swath of Americans. In 2024, 54% of eligible Medicare beneficiaries — 32.8 million people out of 61.2 million Medicare beneficiaries with both Medicare Parts A and B — are enrolled in Medicare Advantage plans.
Not all Medicare Advantage programs are alike, however. Plans that provide an easy way of finding care plus low out-of-pocket costs are more likely to win over subscribers, according to the 2024 U.S. Medicare Advantage Study by J.D. Power.