Medicare Part D

Part D in Pineville, LA: deductible, cap

# How Medicare Part D works in 2027: deductible, the cap, and the three…

PINEVILLE, La. — If you take prescription drugs and have Medicare, the Part D changes that began in 2025 continue into 2027. There's a firm yearly limit on what you pay out of pocket for covered drugs, the old "donut hole" is gone, and costs are structured in three clear phases.

Here's a plain-English guide to how Part D works in 2027, and where Pineville residents can turn for help.

What Part D is, in one paragraph

Medicare Part D is the part of Medicare that helps pay for prescription drugs you pick up at the pharmacy. It's offered through private insurance companies that follow rules set by Medicare. You can get Part D either as a standalone drug plan added to Original Medicare, or built into a Medicare Advantage plan that includes drug coverage. Pineville is in Rapides Parish, where multiple standalone Part D plans and Medicare Advantage plans with drug coverage are available — but this article is about the rules that apply to all of them, not any specific plan.

The deductible in 2027

Each Part D plan can set its own deductible, which is the amount you pay for your drugs before the plan starts sharing the cost. Medicare caps the maximum deductible at $615 in 2026 and $700 in 2027. Some plans charge the full amount, some charge less, and some charge nothing at all — that's a plan-by-plan choice. Once you meet the deductible (if your plan has one), you move into the next phase.

The new $2,100 out-of-pocket cap

This is the headline change. Starting in 2025, there is a hard yearly cap on what you pay out of pocket for covered Part D drugs. The cap is $2,100 in 2026 and $2,400 in 2027. Once your out-of-pocket spending on covered drugs reaches that amount, you pay nothing more for those drugs for the rest of the calendar year.

Before this cap existed, people with very expensive prescriptions — cancer drugs, certain autoimmune treatments, some diabetes medications — could spend many thousands of dollars in a single year. That's no longer the case.

The three phases of Part D in 2027

Part D used to have four phases, including the confusing "coverage gap" or donut hole. As of 2025, the donut hole is eliminated. Here are the three phases now:

1. Deductible phase. You pay the full negotiated price for your drugs until you meet your plan's deductible (up to $615 in 2026 and up to $700 in 2027). If your plan has no deductible, you skip this phase.

2. Initial coverage phase. You and your plan share the cost. You typically pay a copay or a percentage (coinsurance) for each prescription. This continues until your total out-of-pocket spending on covered drugs reaches $2,100.

3. Catastrophic phase. Once you hit $2,100 out of pocket, you pay nothing more for covered drugs for the rest of the year.

That's it. Three phases, one yearly cap.

The Medicare Prescription Payment Plan

Even with the $2,100 cap, some people still don't want to be hit with a large pharmacy bill in a single month. Medicare now offers an optional program called the Medicare Prescription Payment Plan. It lets you spread your out-of-pocket drug costs across the calendar year in monthly payments instead of paying the full amount at the pharmacy counter.

It doesn't lower your total cost — you still pay the same amount over the year — but it can make cash flow easier. You have to opt in, and you can do so through your Part D plan.

A note on higher incomes (IRMAA)

Most people pay only their plan's premium for Part D. But if your income is above a certain level, Medicare adds a surcharge called IRMAA (Income-Related Monthly Adjustment Amount) on top of your Part D premium. In 2026, IRMAA surcharges for Part D begin above $109,000 in income for a single filer (higher thresholds apply for joint filers). Social Security notifies you if it applies to you.

When you can enroll or switch

• Annual Enrollment Period: October 15 – December 7. This is when most people join, switch, or drop a Part D plan. Changes take effect January 1.
• Medicare Advantage Open Enrollment: January 1 – March 31. If you're in a Medicare Advantage plan, you can switch to another Medicare Advantage plan or return to Original Medicare (and add a standalone Part D plan) once during this window.

If you're new to Medicare, you also have an Initial Enrollment Period around your 65th birthday.

Where Pineville residents can get help

You don't have to figure this out alone. For personalized answers:

• Visit medicare.gov to compare Part D plans available in Rapides Parish using the Plan Finder tool.
• Call 1-800-MEDICARE (1-800-633-4227), open 24/7.
• Contact Louisiana SHIIP (the State Health Insurance Assistance Program), which offers free, unbiased Medicare counseling to residents across Louisiana.