How Does MA Plan Design Impact Enrollment, Equity?

Medicare Advantage plan design — particularly the cost of premiums — has a major influence on who chooses to enroll. The variance in that enrollment mix can have a big impact on outcomes and utilization, according to a new white paper from Inovalon and Harvard Medical School. Using Inovalon’s Medical Outcomes Research for Effectiveness and Economics Registry dataset, which tracks demographic and outcomes information for about 30% of the MA population at any given time, researchers found that socioeconomically disadvantaged populations were more attracted to MA, especially zero-premium products.

“Our research challenges the misconception that Medicare Advantage is a monolith, revealing significant differences in plan designs and features and how those variables affect enrollment and outcomes,” Boris Vabson, Ph.D., a health economist at Harvard Medical School and co-lead researcher on the project, said in an April 8 statement released alongside the research.