全球智库信息集成服务系统

Key Findings:

• Medicare Advantage enrollment has increased in virtually all states over the past year. Almost one in three people on Medicare (31% or 17.6 million beneficiaries) is enrolled in a Medicare Advantage plan in 2016. The penetration rate exceeds 40 percent in 5 states.
• Over 3 million enrollees (18%) are in a group plan in 2016.
• UnitedHealthcare and Humana together account for 39 percent of enrollment in 2016; enrollment continues to be highly concentrated among a handful of firms, both nationally and in local markets. If Aetna acquired Humana with no divestitures in 2016, the combined firm would account for 25 percent of Medicare Advantage enrollees nationwide.
• On average, premiums paid by enrollees were relatively constant between 2015 and 2016 ($37 per month in 2016 versus $38 per month in 2015), although premiums vary widely across states, counties, and plan types.
• Medicare Advantage plans, unlike traditional Medicare, are required to provide an out-of-pocket limit (not to exceed $6,700) for services covered under Parts A and B. In 2016, the average enrollee had an out-of-pocket limit of $5,223—nearly $1,000 higher than it was in 2011 ($4,313). More than one-third of all enrollees in Medicare Advantage prescription drug plans in 2016 (37%) are in plans with limits at the maximum.