This total includes plans open to everyone and employer-only group plans for retirees of a former employer or union (Figure 2).
Specialty drugs: More than 4 in 10 Part D enrollees are in plans that charge 33 percent coinsurance for specialty tier drugs, defined by CMS as drugs that cost at least $670.įindings Enrollment More than 43 million Medicare beneficiaries, or 72 percent of all Medicare beneficiaries nationwide, are enrolled in Part D plans.For example, for PDP enrollees, median cost sharing ranges from $1 for preferred generics to $37 for preferred brands, and a 40% coinsurance rate for non-preferred drugs. Cost sharing for generics and brands: Most Part D enrollees face modest cost-sharing amounts for generic drugs but can face much higher cost sharing for brands and non-preferred drugs, and a mix of copayments and coinsurance for different formulary tiers.Deductibles: More than 4 in 10 PDP and MA-PD enrollees are in plans that charge no Part D deductible, but a larger share of PDP enrollees than MA-PD enrollees are in plans that charge the standard deductible amount of $405 in 2018.Overall, average monthly PDP premiums increased by a modest 2 percent in 2018. Premiums: Monthly Part D PDP premiums average $41 in 2018, but premiums vary widely among the most popular PDPs, ranging from $20 per month for Humana Walmart Rx to $84 per month for AARP Medicare Rx Preferred.Figure 1: Three firms-UnitedHealth, Humana, and CVS Health-cover over half of all Medicare Part D enrollees in 2018