What Happened to the Medicare Donut Hole? What It Was and Why It Ended
The Part D coverage gap is history. See how the new rules work, and where Medicare Advantage fits in
Medicare has dozens of different terms, many of which can be confusing. One that comes up frequently in my research is the Medicare “Donut Hole,” a former coverage gap in prescription drug costs that once affected millions of older adults.
Thankfully, the Medicare donut hole no longer exists. I spoke to several experts about why it was eliminated and what replaced it under Medicare. As Neal K. Shah, NIH-funded healthcare researcher and Chairman of Counterforce Health, explains:
The donut hole was originally built into Medicare Part D, but it created a sudden spike in out-of-pocket costs for people who rely on prescriptions. Over time, federal reforms phased it out to make drug costs more affordable and predictable for Medicare beneficiaries.
In This Article
What was the Medicare Donut Hole?
The “donut hole” was a gap in Medicare Part D drug coverage. After you and you plan spent beyond a certain limit on prescriptions, your out-of-pocket costs would suddenly increase, sometimes dramatically. Many seniors saw monthly medication costs jump from manageable co-pays to several hundred dollars, especially for brand-name drugs.
“It created a lot of financial anxiety for older adults who were trying to budget on fixed incomes,” says Shah, who observed the effects while working with CareYaya, a caregiving support organization for older adults.
Dr. Geny Ann Augustine, Family Medicine Physician at Solace Health, notes that this sudden spike often caught people off guard: “Many felt blindsided — one month a drug was $40 and the next it shot up to several hundred.”
How and why the Donut Hole was eliminated
The Medicare Donut Hole was eliminated to make prescriptions more affordable and predictable for people on Medicare. By removing the sudden spike in drug costs, the changes also reduce the financial pressure on beneficiaries and help them better plan for their healthcare expenses.
This transformation happened in two major steps, according to Neal K. Shah:
- Affordable Care Act (2010–2020): Gradually reduced what people paid inside the coverage gap.
- Inflation Reduction Act (January 1, 2025): Completed the redesign by formally eliminating the coverage gap and creating a simplified three-phase benefit with a $2,000 out-of-pocket cap.
These steps together ensure that Medicare users no longer face the unpredictable costs that once made the donut hole so challenging.
What replaced the Donut Hole?
With the donut hole officially gone, Medicare Part D now has a simpler, more predictable structure. Neal K. Shah explains: “The coverage gap was eliminated and replaced with a three-phase benefit that keeps costs manageable for people on Medicare. While there’s still a middle stretch where out-of-pocket spending increases, it’s no longer a sudden, unexpected spike.”
According to the Centers for Medicare & Medicaid Services (CMS), here’s how Part D works today:
- Annual Deductible Phase: You pay 100% of your covered prescription drug costs until meeting the deductible. For 2025, the deductible is $590.
- Initial Coverage Phase: After the deductible, you typically pay 25% coinsurance for covered Part D drugs. Your plan (the sponsor) covers most of the remaining cost, while drug manufacturers provide discounts on applicable drugs. This phase continues until your total out-of-pocket spending reaches $2,000 for 2025.
- Catastrophic Coverage Phase: Once the $2,000 out-of-pocket threshold is met, you pay no cost sharing for covered drugs. Plan sponsors, manufacturers and CMS each cover portions of the drug costs through reinsurance and discount programs.
Under this structure, the sudden coverage gap that defined the original donut hole is gone. While Medicare beneficiaries have more financial predictability with their prescriptions, continuing to stay informed is key. “The biggest thing is to compare Part D plans every single year. Formularies change, tiers shift, and a drug that was affordable last year might not be this year,” explains Shah.
Next steps for your Medicare coverage
Even though the donut hole is gone, it’s smart to review your overall Medicare coverage each year. Here are some practical steps to help you manage costs and stay covered:
- Compare Medicare Advantage plans: These plans can help cover prescription costs and other healthcare expenses.
- Check your Part D plan annually: Formularies and drug tiers change every year, so reviewing your plan helps avoid surprise costs.
- Ask your doctor about generics or biosimilars: Switching can save hundreds or thousands each year.
- Explore assistance programs: State Pharmaceutical Assistance Programs, Extra Help or patient assistance programs may help lower your out-of-pocket expenses.
Taking these steps can help you feel more in control of your healthcare costs and avoid unexpected bills.
FAQs
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Does the Medicare Donut Hole still exist?
No. The Medicare Donut Hole, or Part D coverage gap, was officially eliminated starting January 1, 2025. Now, Part D has a simplified three-phase structure with a $2,000 out-of-pocket cap, so beneficiaries no longer face sudden spikes in prescription drug costs.
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How does Part D coverage work now that the Donut Hole is gone?
Part D now follows a simpler, more predictable structure that eliminates the sudden coverage gap. You start by paying all prescription costs until you meet your deductible, which is $590 in 2025. After that, you enter the initial coverage phase, where you typically pay 25% of your drug costs while your plan and drug manufacturers cover most of the remaining expenses. Once your total out-of-pocket spending reaches $2,000 in 2025, you enter catastrophic coverage, at which point you pay nothing for covered drugs for the rest of the year. This new structure helps make prescription costs much more manageable and predictable for Medicare beneficiaries.
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Could the Medicare Donut Hole happen again?
Under current law, the traditional Donut Hole is unlikely to return, thanks to the redesigned Part D structure and the $2,000 out-of-pocket cap. However, drug prices, plan formularies and coverage rules can change each year, so beneficiaries may still face higher-than-expected costs for certain medications. Staying informed and reviewing your Part D plan annually helps prevent surprises.
