Plans on a roll. Will they continue to rock?

Well, they've defied expectations so far. It was expected that MA enrollment would decline from 10.9 million enrollees (or 24% of all Medicare enrollment) to 8.2 million (15% of Medicare's total enrollment). Instead, enrollment has continued to climb. In 2016, 17.6 million Medicare beneficiaries-or 31% of all beneficiaries-were in MA plans.