Medicare Part D

How Medicare Drug Costs Change for Des Moines in 2026

DES MOINES, Iowa — On January 1, 2027, the Part D out-of-pocket cap rises to $2,400, up from $2,100 in 2026. The firm yearly ceiling on what you spend at the pharmacy for covered drugs stays in place — just at a higher number next year.

If you take expensive medications, or if you've ever worried about a new prescription blowing up your budget, the Part D cap remains the biggest recent change. Here's what's shifting into 2027, and the mistakes to avoid as Annual Enrollment (October 15 – December 7, 2026) runs.

The Part D out-of-pocket cap, in plain English

In 2026, once your out-of-pocket spending on covered Part D drugs hits $2,100, you pay $0 for the rest of the calendar year on those covered drugs. That's it. No more open-ended costs stacking up month after month.

A few things worth knowing:

• The cap applies to covered Part D drugs. Drugs your plan doesn't cover don't count toward it.
• Your monthly Part D premium does not count toward the cap.
• The cap resets each January 1.
• The annual Part D deductible can be up to $615 in 2026 (plans can set it lower, but not higher).

This cap applies whether your drug coverage comes through a stand-alone Part D plan or is built into a Medicare Advantage plan with drug coverage.

Goodbye, "donut hole"

If you've been on Medicare for a while, you probably remember the coverage gap — the dreaded "donut hole" where costs jumped in the middle of the year. That gap was eliminated in 2025.

Part D now has just three phases:

1. Deductible phase — you pay full negotiated price until you meet your plan's deductible (up to $615 in 2026; up to $700 in 2027). 2. Initial coverage phase — you pay a copay or coinsurance while your plan pays the rest. 3. Catastrophic phase — once your out-of-pocket spending reaches the yearly cap ($2,100 in 2026; $2,400 in 2027), you pay nothing for covered drugs for the rest of the year.

That's a much simpler picture than Medicare has offered in decades.

The Medicare Prescription Payment Plan: spreading the cost

Here's the piece a lot of Iowans are still learning about. Even with the yearly cap, some people hit big drug costs early in the year — say, a $600 charge in January for a specialty medication. That's a real hit to a monthly budget.

The Medicare Prescription Payment Plan lets you spread your out-of-pocket drug costs across the calendar year in monthly payments instead of paying it all at the pharmacy counter. Key points:

• It's optional and free to join — there's no fee or interest.
• It doesn't lower your total drug costs; it just spreads them out.
• You pay $0 at the pharmacy for covered drugs, then get a monthly bill from your plan.
• You can opt in before the year starts or at any point during the year.

Who tends to benefit? People with high drug costs early in the year. Who probably doesn't need it? People with very low or very steady drug costs — for them, one monthly bill can actually feel like more paperwork, not less. Your plan is required to offer it if you ask.

What this means during Annual Enrollment

Medicare's Annual Enrollment Period runs October 15 through December 7, 2026. Any changes you make take effect January 1, 2027.

Des Moines is in Polk County, where Medicare beneficiaries have a range of stand-alone Part D and Medicare Advantage options to compare. The number of plans available and their specific costs are set at the county level, so a neighbor in a different county may see a different lineup.

A few common mistakes to sidestep:

• Assuming the cap makes plan choice unimportant. It doesn't. Plans still differ on which drugs are on their formulary, tiers, pharmacy networks, and deductibles.
• Not checking that all your drugs are still covered next year. Formularies change every January. Log in to your plan's 2027 documents or use the Plan Finder at medicare.gov.
• Forgetting about IRMAA. Higher-income beneficiaries pay an added surcharge on Part B and Part D premiums. In 2026, IRMAA begins above $109,000 in income for a single filer (higher thresholds apply for joint filers).
• Waiting until January to ask questions. Once the year starts, your options to switch narrow. Medicare Advantage members do get a second window — the Medicare Advantage Open Enrollment Period, January 1 – March 31 — but stand-alone Part D changes are more limited.

Quick FAQ

Does the yearly cap apply to every drug I take? It applies to drugs covered under Part D by your plan. Drugs given in a doctor's office are usually covered under Part B and follow different rules.

If I join the payment plan, do I still hit the yearly cap? Yes. The cap is based on what you owe in out-of-pocket costs for covered drugs, whether you pay at the pharmacy or through monthly billing.

What happens if I sign up for the payment plan and can't pay a monthly bill? If you miss payments, you can be removed from the program, and you'd go back to paying at the pharmacy. You wouldn't lose your drug coverage itself as long as your plan premium is paid.

I don't take many drugs. Should I bother comparing plans for 2027? It's still worth a look. Even people with just one or two prescriptions can find that a drug moves tiers or a pharmacy leaves a network. A 15-minute check can save headaches later.

Where to get straight answers

Because this is your money and your health, use official sources rather than sales calls:

• Medicare.gov — plan comparisons and the 2027 Plan Finder
• 1-800-MEDICARE (1-800-633-4227) — 24/7, free
• Iowa SHIIP (Senior Health Insurance Information Program) — free, unbiased one-on-one counseling for Iowans, including Des Moines-area residents. Call 1-800-351-4664.

The 2027 changes continue the recent improvements for people who take prescription drugs. But the details still matter — and asking questions now, before December 7, is a lot easier than fixing something in February.