Each year, Medicare beneficiaries can choose a new prescription drug plan during the open enrollment period.
For 2026 coverage, open enrollment runs from Oct. 15 to Dec. 7, and this year brings meaningful updates that may change what you pay for your medications.
Medicare Part D provides prescription coverage to more than 54 million Americans, including adults managing blood pressure, cholesterol, diabetes, arthritis, and other chronic conditions. Choosing a plan that fits your needs is a key part of protecting your health.
Below, we answer some of the most common questions about Medicare Part D to help you make confident decisions before Dec. 7.
1. What exactly is Medicare Part D, and do I really need it?
Medicare Part D is the part of Medicare that helps you cover the cost of prescription medications you fill at a pharmacy.
Even if you take only a few medications now, most people benefit from having coverage in place. Part D helps manage costs for medicines commonly used to support healthy aging, including treatments for:
- High blood pressure
- High cholesterol
- Heart disease
If you skip Part D and go without coverage when first eligible, you could face a late-enrollment penalty added to your monthly premium for as long as you have Medicare.
2. What’s changing in Medicare Part D in 2026?
Several major updates take effect in 2026:
- Your total out-of-pocket spending for covered Part D medications will be capped at $2,100 for the year.
- A new program — the Medicare Prescription Payment Plan (MPPP) — lets you spread out your medication costs over the year with monthly payments instead of paying large amounts upfront at the pharmacy.
- Medicare will begin implementing negotiated prices for an initial set of high-cost medications, which may lower costs for many people.
These changes are part of a multi-year effort to make medications more affordable and predictable for people with Medicare.
3. How does the new MPPP work?
Starting in 2026, you can choose to pay your Part D prescription costs in monthly payments instead of paying the full amount when you pick up your medication.
This doesn’t reduce what you owe overall, but it prevents large upfront expenses, especially important if you take several medications or start a new, costly drug.
Your plan will track what you owe and send you a monthly bill. This option can make costs easier to manage on a fixed income.
4. Why should I review my plan if I liked it last year?
Even if your 2025 plan worked well, plans can change every year, including:
- Premiums
- Deductibles
- Which drugs the plan covers (its formulary)
- Whether your pharmacy is “preferred” or out-of-network
A quick review helps prevent surprises — especially important if you take medications for chronic conditions like high cholesterol, atrial fibrillation (AFib), or high blood pressure.
5. How do I find out how my plan is changing for 2026?
Your current plan should have mailed you the Annual Notice of Change (ANOC) by late September or October.
This notice explains:
- Changes in premiums
- Changes in the medications your plan covers
- New restrictions (like prior authorization)
- Pharmacy network changes
If you haven’t received your notice, contact your plan directly or review your plan online.
6. Should I pick the plan with the lowest premium?
Not always. A lower monthly premium doesn’t always mean lower total costs.
Look closely at:
- Drug tiers
- Copays or coinsurance
- Deductibles
- Whether your medications have new coverage restrictions
- Whether your pharmacy is “preferred”
A slightly higher premium may save you money over the course of the year.
7. What is a preferred pharmacy, and why does it matter?
A preferred pharmacy is part of a network where your plan offers lower costs.
Using a preferred pharmacy may reduce your copays, but that’s not always the case. Use the plan finder to compare what you’ll pay at each pharmacy near you.
8. If I switch plans, do I need to notify my doctor or pharmacy?
Yes. When your new Part D plan begins in January, notify your pharmacy so they can update your insurance information.
This helps prevent delays when you refill your medications. Your old plan will automatically deactivate when the new plan starts.
9. How can I get help reviewing Medicare plans?
You don’t have to figure it out alone.
Free help is available:
- State Health Insurance Assistance Programs (SHIP): Free one-on-one counseling from trained Medicare experts.
- 1-800-MEDICARE (1-800-633-4227) for 24/7 support. TTY: 1-877-486-2048. Or start a live chat online.
- Extra Help program (for low-income assistance): Helps with premiums, deductibles, and drug copays.
Make the Most of Your Medicare Coverage
Reviewing your Medicare Part D plan each year is one of the most important steps you can take to protect your health and your budget.
With the 2026 updates, this open enrollment period is an opportunity to:
- Confirm your medications stay covered.
- Avoid unexpected pharmacy costs.
- Take advantage of new affordability options, including the out-of-pocket cap and monthly payment program.
Taking a few minutes now to review your choices can make next year’s medications easier to manage and give you peace of mind as you head into 2026.
