How it works
- You pay nothing at the pharmacy for covered Part D drugs.
- Your plan sends you a monthly bill. The amount is set by a Medicare formula: your drug costs so far divided across the months left in the year, so it can change when you fill new prescriptions.
- Your total out-of-pocket costs are the same as without the program, and still capped: $2,100 for 2026, and higher for 2027.
- You keep paying your plan premium the usual way.
Who it helps most
It helps most if you have high drug costs early in the year, for example a costly drug that would take you to the cap in January or February. Paying that all at once can be hard; this spreads it out. It helps less if your drug costs are low, if you'd join late in the year, or if you get Extra Help, which already keeps copays low. Medicare.gov has a short questionnaire to see if it's likely to help you.
Copays under Medicare's temporary GLP-1 Bridge for weight-loss drugs can't be paid through it.
How to join
- Call your plan or go to its website. The number is on your plan card. You can join any month.
- Ask about timing at the pharmacy. If you join while a prescription is waiting, ask the pharmacy whether it can hold the fill until your plan confirms you're in the program.
- Pay the monthly bill. Pay your plan, not the pharmacy, by the due date on the bill.
- Opt out if it stops helping. Contact your plan; after that you pay new costs at the pharmacy, and any remaining balance on your bills.
In Oregon
Every one of Oregon's 8 standalone Part D plans for 2027, and every Medicare Advantage plan with drug coverage, must offer the program. It works the same in every county. Plans differ in premiums, deductibles and formularies, so compare plans during Open Enrollment (through December 7). You can check your drugs at PlanMatch or request a call from a licensed insurance agent. More in Medicare Part D in Oregon.
Related questions
What is the Part D out-of-pocket cap for 2027?
Next year's limit.
Is there still a Part D donut hole?
The 2025 redesign.
Does Medicare cover weight-loss drugs?
Part D and the GLP-1 Bridge.
Sources
- Medicare.gov — Medicare Prescription Payment Plan
- Medicare.gov — What's the Medicare Prescription Payment Plan? (fact sheet)
- CMS — Medicare Prescription Payment Plan final part two guidance
- Medicare.gov — Weight loss drugs (Medicare GLP-1 Bridge)
More questions in this guide
- Can I use the Oregon ArrayRx discount card with Medicare?
- How much is insulin with Medicare in Oregon?
- Does Medicare cover Ozempic, Wegovy, or other weight-loss drugs in Oregon?
- Is there still a Medicare Part D donut hole in 2026?
- What is the Medicare Part D out-of-pocket cap for 2027?
Part of the guide: Medicare Part D in Oregon — 2027 drug coverage · All questions
Frequently asked questions
When can I join?
Any time during the year, by contacting your plan. Joining early in the year spreads costs over more months. You can also sign up when you choose a plan during Open Enrollment so it starts January 1.
Does it renew automatically?
Yes. If you stay in the same plan, your plan renews your participation each year unless you opt out. If you switch plans, it ends, and you contact your new plan to join again.
What if I miss a payment?
Your plan must give you a grace period of at least two months and send a reminder before removing you. You still owe the balance, but there's no interest or late fee, and you keep your drug coverage.
Medicare in your Oregon county
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