Medicare Part D Prescription Drug Coverage

How Medicare Part D works

Original Medicare doesn’t cover most prescriptions you fill at a pharmacy. Part D fills that gap. You can get it two ways: as a standalone Prescription Drug Plan (PDP) that sits alongside Original Medicare and a Medigap policy, or as part of a Medicare Advantage plan that includes drug coverage, called an MAPD.

Each plan is run by a private insurer, and each one decides which drugs it covers, how much you pay for them and which pharmacies are in its network, within Medicare’s rules. That’s why two neighbors on the same street in Perrysburg can pay very different amounts for the same medication on different plans.

Standalone Part D carriers named on Kris’s site include Aetna, Anthem, Cigna, Humana, Mutual of Omaha, SilverScript, UnitedHealthcare and Wellcare. Plans renew each calendar year, and drug lists, prices and pharmacy networks can change every January 1. Premiums vary widely between plans, and the plan with the lowest premium isn’t always the one with the lowest total cost once your actual drugs are priced in.

You can join Part D when you first become eligible for Medicare, during your seven-month Initial Enrollment Period around your 65th birthday month. After that, you can switch plans each year during the Annual Enrollment Period, October 15 through December 7. If you skip Part D when you’re first eligible and have no other creditable drug coverage, a late enrollment penalty may apply when you join later.

Formularies, tiers and pharmacy networks

Every Part D plan has a formulary, its list of covered drugs. Before you pick a plan, each of your medications needs to be checked against that list, including the exact strength and form. A drug that’s missing from the formulary may not be covered at all, and drugs can be added or removed from year to year.

Formularies sort drugs into tiers. Lower tiers, usually generics, cost less. Higher tiers, such as non-preferred brands and specialty drugs, cost more. Plans may also use rules like prior authorization, step therapy (trying a lower-cost drug first) and quantity limits. Your cost can also depend on whether you use a preferred pharmacy, a standard pharmacy or mail order.

This is where a careful review pays off. Kris has caught drug plans that were about to stop covering a client’s medication, in time to switch before the new year. You can start your own check with the Rx drug lookup.

What you’ll pay in 2027: the deductible and the $2,400 cap

Part D costs have a few moving parts: the monthly premium, an annual deductible, and your copay or coinsurance at the pharmacy. For 2027, plans can set a deductible of no more than $700, up from $615 in 2026. Some plans have a lower deductible or skip it for certain tiers.

The biggest protection is the yearly out-of-pocket cap of $2,400 in 2027, up from $2,100 in 2026. Once your out-of-pocket spending on covered drugs reaches the cap, you pay nothing more for covered Part D drugs for the rest of the year. If you take expensive brand-name or specialty medications, that cap can make a big difference in your budget.

If paying a large amount early in the year is hard, the Medicare Prescription Payment Plan can spread your out-of-pocket drug costs into monthly payments. People with limited income may qualify for Extra Help with Part D costs. Higher earners may pay an income-related surcharge, called IRMAA, on Part D; the IRMAA calculator gives an estimate. Kris is a licensed agent, not a tax adviser, so check income questions with your tax professional.

The Part D late enrollment penalty

If you go 63 or more days in a row without Part D or other creditable drug coverage after your Initial Enrollment Period ends, you may owe a late enrollment penalty. Creditable coverage means coverage at least as good as Part D, such as many employer or union plans. Your employer should tell you each year whether its coverage is creditable.

The penalty is 1% of the national base beneficiary premium for each full month you went without coverage, rounded to the nearest ten cents. It’s added to your monthly premium, it’s recalculated each year as the base premium changes, and it generally lasts as long as you have Part D. For example, 20 uncovered months in 2027 works out to 20% of $41.33, or about $8.30 a month.

Want to see what your situation might cost? The Part D penalty calculator gives an estimate, not a quote. If you believe a penalty was applied in error, for example because you had creditable coverage through an employer, you can ask Medicare to reconsider it. Kris can help you understand the process and gather the paperwork you’ll need.

Part D in northwest Ohio

Pharmacy networks matter in this part of the state. Some plans give their lowest prices only at preferred pharmacies, so it’s worth checking where you actually fill prescriptions, whether that’s a big chain in Toledo, a grocery-store pharmacy in Perrysburg, or a smaller independent pharmacy in a nearby town. Mail order can also lower costs for medications you take every day.

Kris has helped people across northwest Ohio with drug coverage since 2017. If you winter in Florida, she’ll look at how a plan handles fills out of state. And because drug lists and prices shift each year, she encourages every client to review their plan during the Annual Enrollment Period, October 15 through December 7, 2026.

Clients describe Kris as kind, helpful and someone who knows her stuff, and that matters most when something goes wrong. If a pharmacist tells you a drug needs prior authorization, or your copay suddenly jumps, Kris can help you understand why and what your options are. And if you move to Michigan, Indiana or Florida, she’s licensed there too and can keep helping.

How Kris helps you choose a Part D plan

Kris starts by gathering your complete medication list, including doses and how often you fill each one, along with your preferred pharmacy. She runs that list against the plans available in your area and compares your estimated total yearly cost, not just the monthly premium. That’s often where the real savings show up.

Then she explains the results in plain English, helps you enroll, and stays available year-round if a pharmacy says a drug isn’t covered or needs prior authorization. If you’re pairing Part D with a Medicare Supplement plan, she can help with both at once. To get started, request a quote.

• Check every drug, dose and form against each formulary
• Compare estimated total yearly costs across carriers
• Factor in preferred pharmacies and mail order
• Enroll you and confirm your start date
• Re-check your drugs every fall before December 7

Who Medicare Part D may be right for

• People on Original Medicare who need prescription coverage
• Medigap members choosing a companion drug plan
• Anyone taking brand-name or specialty medications who wants to understand the $2,400 cap
• People leaving employer coverage who want to avoid a late penalty
• Current Part D members whose drugs or pharmacy changed this year

Medicare Part D Prescription Drug Carriers Kris represents

Availability varies by county and changes every year. Kris will show you which of these carriers offer plans where you live.

• Aetna
• Anthem
• Cigna
• Humana
• Mutual of Omaha
• SilverScript
• UnitedHealthcare®
• Wellcare

See all carrier partners