Medicare Part D

Before You Refill in Ames: How to Check Your Part D Pharmacy Tier

AMES, Iowa — If you've ever picked up a prescription at one drugstore, then heard a friend across town paid a different amount for the same medication, you're not imagining things. Under Medicare Part D, the pharmacy counter you choose can change what you pay — even when the drug, the dose, and the plan are identical. With the Annual Enrollment Period running through Dec. 7 and 2027 plan details now posted on Medicare.gov, this is a good moment for Ames residents to understand how pharmacy networks work before the next refill.

What a Part D pharmacy network actually is

Every Medicare Part D plan — whether it's a stand-alone drug plan or the drug portion of a Medicare Advantage plan — contracts with a list of pharmacies. That list is the plan's network. Inside the network, pharmacies are usually split into two groups:

• Preferred pharmacies have negotiated lower cost-sharing with the plan.
• Standard (non-preferred) network pharmacies are still in-network, but the plan's cost-sharing at the counter is typically higher.

Pharmacies outside the network usually aren't covered at all, except in specific situations like travel or an emergency. This structure is set by CMS's Part D program rules and is why two people on the same plan can hand over the same prescription and walk out having paid different amounts.

Why the same pill can cost more across town

The drug's price tag doesn't really change — what changes is the deal your plan has with that particular pharmacy. Plans steer members toward preferred pharmacies by setting lower copays or coinsurance there. At a standard pharmacy, you may pay more of the cost yourself, even though the medication is the same and the plan still covers it.

A few things worth knowing:

• A chain pharmacy that's preferred for one plan may be standard for another. It's plan-by-plan.
• Networks can change each Jan. 1, so a pharmacy that was preferred in 2026 isn't guaranteed to be preferred in 2027.
• The difference between preferred and standard tends to be biggest on generics and routine maintenance drugs.

Where mail order fits in

Mail-order pharmacies are a third option. For people who take the same medication every month, plans often allow a 90-day supply by mail, sometimes with different cost-sharing than a 30-day fill at retail. Mail order isn't automatically cheaper for everyone — it depends on the drug, the plan, and whether your local pharmacy also offers 90-day fills at preferred pricing. It's a comparison worth running, not an assumption.

How to check your pharmacy's status

You don't have to guess. Here's how Ames residents can confirm where a pharmacy stands under a given plan:

1. Go to Medicare.gov's Plan Finder, enter your ZIP code and your medication list, and look at each plan's pharmacy details. The tool shows retail cost-sharing at preferred, standard, and mail-order pharmacies. 2. Call your plan using the member services number on your card and ask directly whether a specific pharmacy is preferred, standard, or out-of-network for the coming year. 3. Call your local SHIP — Iowa's State Health Insurance Assistance Program offers free, unbiased counseling and can walk you through the comparison. 4. Call 1-800-MEDICARE (1-800-633-4227), available 24/7.

Ames is in Story County, where beneficiaries have a range of stand-alone Part D and Medicare Advantage prescription drug plans to compare during the Annual Enrollment Period.

The 2027 rules that shape your out-of-pocket cost

Regardless of which pharmacy you use, a few program-wide numbers set the outer edges of what you'll spend on covered drugs in 2027:

• The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027. Once you hit that threshold, you pay nothing for covered drugs the rest of the year.
• The maximum Part D deductible is $615 in 2026 and $700 in 2027, though plans can set a lower one.
• The coverage gap ("donut hole") is gone as of 2025 — Part D now has three phases instead of four.
• The Medicare Prescription Payment Plan lets you spread your drug costs into monthly payments instead of paying large amounts at the pharmacy counter. It's optional and free to join.
• IRMAA surcharges on Part D premiums start above $109,000 in income for a single filer in 2026.

Deadlines to keep in mind

• Oct. 15 – Dec. 7: Medicare Annual Enrollment Period. Changes you make take effect Jan. 1.
• Jan. 1 – March 31: Medicare Advantage Open Enrollment Period, for people already in an MA plan who want to switch MA plans or return to Original Medicare.

If your regular pharmacy quietly moved from preferred to standard for 2027 — or vice versa — AEP is the window to react.