Analysis finds average monthly premiums for Part D stand-alone drug plans to increase 50% in 2027

The estimated average monthly premium for Medicare Part D stand-alone prescription drug plans is $51 for 2027, a 50% increase from $34 in 2026, for enrollees that continue on the same plans, according to a KFF analysis released Oct. 30. Monthly premiums for Medicare Advantage prescription drug plans in 2027 are expected to be $9, more than five times lower than stand-alone Part D plans. The average monthly Part D plan premium is projected to increase by $17, but by less than $2 for MA drug plans.