More than 66 million people have Medicare health coverage, according to the program. And according to the Commonwealth Fund, nine out of 10 of those Medicare beneficiaries report taking prescription drugs regularly.
While many Medicare recipients can manage their drug costs over the long term, some experience periods when access and affordability are issues. This is especially true for those on multiple medications or high-cost branded drugs.
Medicare Part D Donut Hole
According to the National Council on Aging (NCOA), up until 2025, if you spent a certain amount on prescription drugs, you’d enter the Medicare Part D “donut hole” or coverage gap.For example, in 2024, you reached the Part D donut hole when you and your plan paid $5,030 for your medications.
- deductible
- initial coverage
- coverage gap (donut hole)
- catastrophic coverage
What Is the Medicare Part D Out-of-Pocket Cap?
According to the Patient Advocate Foundation, starting in 2025, there is an annual limit on what you pay out-of-pocket for prescription medications. This applies to plans obtained through Medicare and Medicare Advantage prescription drug plans.- deductibles
- copayments
- coinsurance for covered drugs
What Doesn’t Come Under the Medicare Part D Cap?
The Part D cap doesn’t apply to prescription drug costs that are not covered under a Part D Plan. It also doesn’t apply to prescription drugs covered under Medicare Part B. These include injectables and infused drugs.Medicare Part D Deductible
Your deductible is a preset amount that you, or others on your behalf, pay out of pocket for your covered prescriptions before Medicare or other insurance starts to pay.According to Medicare, no Medicare drug plan may have a deductible more than $615 in 2026. In 2025 the Medicare deductible was $590.
Medicare Prescription Drug Coverage Stages
Typically, in 2026, Medicare drug plans and Medicare Advantage Plans with drug coverage have three stages. These include:- deductible stage ($615 maximum in 2026 if your plan has one)
- initial coverage stage (After you reach the deductible, you pay 25 percent of the cost as coinsurance until you reach $2,100 in 2026.)
- catastrophic coverage (You won’t have to pay out-of-pocket Part D drugs for the rest of the calendar year.)
Drawbacks to the Medicare Part D Cap
According to U.S. News, one side effect of the Part D change is a shift of financial responsibility onto insurers. The result is that some plans may increase premiums. Some plans may revise formularies, adjust pharmacy networks or eliminate some drugs. A formulary is a list of prescription drugs that your Medicare Part D plan covers.These changes could limit someone’s access to certain drugs or pharmacies. In an interview published in U.S. News, Scot Maibor, the managing director at Senior Benefits Boston, an insurance brokerage in Haverhill, Massachusetts, said: “An unintended result of the cap is that most plans are now charging the maximum allowed deductible and applying this to all drug tiers.”
Medicare Prescription Payment Plan
If you have a Medicare prescription plan, according to the program, you have the option to make payments for your out-of-pocket drugs instead of paying upfront at the pharmacy. This allows you to spread the cost of medications covered by your plan across the calendar year.Participating in the prescription payment plan is voluntary.







