Medicare Part D stand-alone premiums projected to surge 50% in 2027

If you rely on a stand-alone Medicare prescription drug plan to help pay for your medications, your monthly bill could look sharply different next year.

According to an analysis by health policy research group [KFF], the average monthly premium for stand-alone Medicare Part D plans is projected to increase by 50% in 2027, rising from $34 to $51 per month. That steep projection applies if enrollees stay put in their current plans rather than actively shopping for and switching to less expensive options available in their area.

For anyone living on a fixed income, an extra $17 each month adds up quickly. It amounts to more than $200 a year just to keep the same basic drug coverage—a financial shock that underscores why auto-renewing your coverage this season could prove expensive.

A widening price gap between coverage paths

The projected surge highlights an ongoing division in how older adults receive Medicare drug coverage. While beneficiaries enrolled in Medicare Advantage typically have prescription drug benefits bundled into their plans, those who keep traditional Medicare must buy an independent, stand-alone prescription drug plan (PDP) to cover their medications.

According to [KFF], the average monthly premium is now substantially higher for these stand-alone PDPs than for drug coverage integrated into Medicare Advantage plans. As insurers adjust their offerings, enrollees who prefer the freedom and broad provider access of traditional Medicare face higher baseline premiums to safeguard their pharmacy benefits.

Yet the headline increase of 50% is not set in stone for every household. As the researchers emphasize, that average jump reflects what beneficiaries would pay if they simply let their current policies roll over into 2027 [KFF]. In many regions, lower-premium plans remain available, but enrollees must take the initiative to find and select them.

Plan terminations compound the disruption

Higher premiums are not the only challenge facing beneficiaries this season. In a related analysis, [KFF] found that more than 4 million Medicare beneficiaries will have their current Medicare Advantage plan or stand-alone prescription drug plan terminated entirely at the end of 2026.

When an insurer exits a service area or drops a specific product line, affected enrollees receive a notice indicating that their coverage will end on December 31 [KFF]. If you are among those whose plan is ending, inaction could mean being automatically reassigned to another plan that may not cover your specific maintenance drugs or could carry an unexpectedly high premium.

Even for those whose plans remain active, formularies change year after year. A plan that offered the most affordable copays for your daily heart medication or blood pressure pills this year might reclassify those therapies into a higher, costlier tier next year.

How to protect your monthly budget

Facing a projected 50% premium increase can feel daunting, but you have leverage during Medicare’s annual open enrollment period. The most reliable way to avoid paying more than necessary is to log into your account on Medicare.gov and review your options.

First, enter your complete, current list of prescription medications and dosages into the plan comparison tool. Comparing plans solely by their monthly premium can be misleading; what matters most is your total estimated annual cost, which combines the premium with your out-of-pocket copayments and deductibles.

Second, check whether your preferred local pharmacy remains an in-network, preferred provider under the plans you evaluate. Drug plans frequently charge lower out-of-pocket costs at preferred pharmacies.

Third, if you received a notice stating that your plan is terminating at the end of the year, treat it as an urgent prompt to act rather than setting it aside. Selecting a replacement plan before enrollment closes ensures your pharmacy benefits continue uninterrupted on January 1.

Medicare prescription coverage has become more complex, but taking an hour this week to review your plan details could prevent an unwelcome 50% increase from quietly draining your budget in the year ahead.