Medicare 101
Understanding Medicare Part D
Medicare Part D covers prescription drugs through private, Medicare-approved plans. You can get it as a standalone plan (paired with Original Medicare or a Medigap plan) or built into a Medicare Advantage plan. The catch is that every plan covers a different list of drugs at different prices, so the cheapest premium is rarely the cheapest plan for you. Here's how Part D actually works in 2026.
Formularies and tiers
Each Part D plan has a formulary — its list of covered drugs — organized into tiers. Lower tiers (generics) cost little; higher tiers (brand-name and specialty drugs) cost more. Two plans can cover the same drug on different tiers, which is why your exact medication list determines which plan is cheapest for you, not the sticker premium.
The 2026 out-of-pocket cap replaces the donut hole
The old coverage-gap 'donut hole' has been phased out. Starting in 2025 and continuing in 2026, your out-of-pocket spending on covered Part D drugs is capped (about $2,100 in 2026). Once you hit that cap, covered drugs cost you $0 for the rest of the year — major protection if you take expensive medications. Confirm current figures on Medicare.gov.
The Medicare Prescription Payment Plan
A newer option lets you spread your out-of-pocket drug costs across the year in monthly installments instead of paying a big bill at the pharmacy counter. It doesn't lower your total cost, but it smooths cash flow — helpful if an expensive drug would otherwise hit you all at once in January. We can explain whether it makes sense for you.
The late-enrollment penalty
If you go without creditable drug coverage after you're first eligible, Medicare adds a permanent penalty to your Part D premium — roughly 1% of the national base beneficiary premium for each month you went without. It lasts as long as you have Part D. Even if you take no drugs today, a low-cost plan now usually beats the penalty later.
Extra Help for lower incomes
If your income and resources are limited, the federal Extra Help (Low-Income Subsidy) program can slash or eliminate your Part D premium, deductible, and copays. Many people who qualify don't realize it. We screen every client and enroll you in Extra Help if you're eligible.
Standalone Part D vs. built into Advantage
If you keep Original Medicare (with or without a Medigap plan), you add a standalone Part D plan. If you choose a Medicare Advantage plan, drug coverage is usually built in — and you generally can't add a separate Part D plan on top of most Advantage plans. That interaction trips people up, so we make sure your drug coverage and your medical coverage fit together correctly the first time.
What 'creditable coverage' means
Creditable drug coverage is coverage at least as good as standard Part D — from an employer, a union, the VA, or TRICARE, for example. As long as you keep creditable coverage, you can delay Part D without a penalty and pick it up later through a Special Enrollment Period. When that coverage ends, timing matters, so let us know and we'll get you enrolled inside your window.
How your drug costs flow through the year
Part D works in stages: you may first meet a deductible, then pay copays or coinsurance as you fill prescriptions, until your out-of-pocket spending reaches the annual cap (about $2,100 in 2026) — after which covered drugs cost you nothing for the rest of the year. If a pricey drug would hit hard early in the year, the Medicare Prescription Payment Plan can spread it into monthly installments. We map out how your specific medications will flow through those stages so there are no January surprises.
Local Medicare help across the Western Slope
Medicare rules are federal, but the plans, provider networks, and prices are local — and they change every year. Medicare On Main is an independent agency based in Grand Junction, Colorado (Mesa County), serving Grand Junction, Fruita, and Palisade plus Moab (Grand County) and Monticello (San Juan County), Utah — and Brian Penner is licensed in 18 states. We compare the plans we offer in your county against your own doctors, prescriptions, and budget, confirm your local providers are in-network, and stay your advisor for claims, appeals, and the annual review — at no cost to you, because carriers pay licensed agents, not you. That local, year-round help is the difference between reading about Medicare and having a plan built around your life.
Questions, answered
What is the Part D donut hole in 2026?
The coverage-gap 'donut hole' has been replaced by an annual out-of-pocket cap (about $2,100 in 2026). After you reach it, covered drugs cost you $0 for the rest of the year. Check Medicare.gov for the current figure.
I don't take any prescriptions — do I still need Part D?
Usually yes, to avoid a lifelong penalty. A low-cost Part D plan now is almost always cheaper than the permanent penalty you'd owe if you enroll later without creditable coverage.
How do I pick the right Part D plan?
Match your exact medication list to each plan's formulary and tiers — not just the premium. We run your prescriptions against the plans we offer in your county to find your lowest total annual cost.
Can I change Part D plans every year?
Yes. During the Annual Enrollment Period (Oct 15–Dec 7) you can switch Part D plans for the next year. We review yours every fall, because formularies and prices change annually.
What if I can't afford my medications?
You may qualify for Extra Help, which can eliminate your Part D premium and deductible and cut copays. We screen for it at no cost and enroll you if you're eligible.
Official Medicare sources
We point you to the federal sources so you can verify everything. For current-year figures and to compare the plans available in your area:
- Medicare.gov — the official U.S. government site for Medicare costs, coverage, and rules.
- Medicare Plan Compare — the official tool to compare Medicare Advantage and Part D plans by ZIP.
- Social Security (ssa.gov) — enroll in Medicare Parts A & B and check your eligibility.
- CMS.gov — Centers for Medicare & Medicaid Services, which runs the program.
Education and estimates only — confirm current figures on Medicare.gov before enrolling. We do not offer every plan available in your area.
Talk to a local Medicare advisor
Free, no pressure — we compare your options for you.
Last updated . Maintained by the Medicare On Main Data Desk · reviewed by Brian Penner, Independent Medicare advisor (NPN 16493717).