Three firms Account for Over Half of All Medicare Part D Enrollees in 2018, and Pending Mergers Would Further Consolidate the Marketplace
News Release
In 2018, three Medicare Part D plan sponsors—UnitedHealth, Humana, and CVS Health—account for more than half of the program’s 43 million Part D enrollees (55%) and two-thirds of all stand-alone drug plan enrollees, indicating a marketplace that is dominated by a handful of major insurers, according to a new Kaiser…