Medicare Part D
Two paths to Medicare drug coverage in Columbus: how the structures actually differ
COLUMBUS, Neb. — If you take even one prescription regularly, you have a decision to make about how Medicare pays for it. There are two ways to get drug coverage, and they work quite differently under the hood.
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Key takeaways
- Stand-alone Part D pairs with Original Medicare, while Medicare Advantage bundles medical and drug coverage into one plan from a private insurer.
- The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027, and the maximum deductible is $615 in 2026 and $700 in 2027; the old coverage gap is gone.
- The Annual Enrollment Period runs October 15 through December 7; the Medicare Advantage Open Enrollment Period runs January 1 through March 31.
- Columbus is in Platte County, where plan availability is set at the county level — check medicare.gov or your local SHIP before switching.
You can pair Original Medicare with a stand-alone Part D drug plan. Or you can enroll in a Medicare Advantage plan that includes drug coverage built in (often called an MAPD). Both give you access to Part D benefits, but the paperwork, the ID cards, the enrollment rules, and even what happens when you visit a doctor are not the same.
Here is how each structure works, and what changes if you move between them.
Path one: Original Medicare plus a stand-alone Part D plan
With this setup, you have Original Medicare (Parts A and B) handling your hospital and medical care, and a separate Part D plan handling your prescriptions. That means two ID cards, two sets of rules, and often two monthly bills.
Many people who choose this path also add a Medigap (Medicare Supplement) policy to help with the out-of-pocket costs Original Medicare leaves behind. Medigap does not cover drugs — that is what the Part D plan is for.
The upside is flexibility. Original Medicare is accepted by most doctors and hospitals in the country, so you are not tied to a network. You pick a drug plan based on your prescriptions, and you can keep it even if you move within its service area.
Path two: A Medicare Advantage plan with drug coverage
A Medicare Advantage plan (Part C) is offered by a private insurer approved by Medicare. When it includes drug coverage, it is called an MAPD, and it wraps your hospital, medical, and prescription benefits into a single plan with one ID card.
These plans usually use provider networks — HMOs, PPOs, and similar structures — and may require referrals or prior authorization for certain services. Drug coverage still follows Part D rules, but the plan sets its own formulary (the list of covered drugs) and pharmacy network.
Columbus is in Platte County, where Medicare Advantage availability is set at the county level. If you are comparing plans, use the Plan Finder at medicare.gov and filter by ZIP code.
What actually changes when you switch
Moving between the two paths is more than a paperwork swap. A few things really do change:
- Your card and your network. With Original Medicare, you show your red-white-and-blue card. With Medicare Advantage, you use the plan's card, and you generally need to stay in network.
- Your drug formulary. A stand-alone Part D plan and an MAPD plan may cover the same medication differently, or place it on a different cost tier. Always check your specific prescriptions before switching.
- Your Medigap eligibility. If you drop Original Medicare for Medicare Advantage and later want to go back, you may not be able to buy a Medigap policy at the same price — outside your initial enrollment window, insurers in most states can use medical underwriting.
- How you handle costs. The Part D out-of-pocket cap applies either way: $2,100 in 2026 and $2,400 in 2027. The maximum deductible is $615 in 2026 and $700 in 2027. The Medicare Prescription Payment Plan, which lets you spread drug costs across the year in monthly amounts, also applies to both paths.
The Part D rules that apply to both paths in 2027
No matter which structure you pick, Part D itself works the same way at the program level:
- The out-of-pocket cap for covered drugs is $2,100 in 2026 and $2,400 in 2027.
- The maximum deductible a plan can charge is $615 in 2026 and $700 in 2027.
- The coverage gap (the old "donut hole") was eliminated in 2025; Part D now has three phases instead of four.
- The Medicare Prescription Payment Plan is available on request to smooth big drug bills into monthly payments.
- If your income is above $109,000 as a single filer in 2026, an IRMAA surcharge is added to your Part B and Part D premiums.
When you can make the switch
Timing matters. The main windows are:
- Annual Enrollment Period: October 15 – December 7. You can join, switch, or drop a Part D plan, or move between Original Medicare and Medicare Advantage.
- Medicare Advantage Open Enrollment Period: January 1 – March 31. If you are already in a Medicare Advantage plan, you can switch to a different one or return to Original Medicare (and pick up a stand-alone Part D plan).
Special Enrollment Periods can also apply if you move, lose other coverage, or qualify for Extra Help.
By the numbers
Medicare Part B premium, 2006–2026
The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.
Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.
By the numbers
How people get Medicare in Platte County
(MA penetration in Platte County)
MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.
Try it
How the 2026 Part D drug cap works
Slide to your estimated yearly prescription costs and see how the new $2,100 out-of-pocket cap protects you. This illustrates the standard Part D benefit; your plan may structure costs differently.
Once your out-of-pocket spending on covered drugs reaches $2,100, you pay nothing more for the rest of 2026. Confirm details at Medicare.gov.
Explore
When can you enroll? An interactive year
Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.
Good to know
Frequently asked questions
Can I have both a stand-alone Part D plan and a Medicare Advantage plan at the same time?
If I switch from Medicare Advantage back to Original Medicare, do I automatically get Part D?
Does the $2,100 out-of-pocket cap apply the same way in both types of plans?
Where can I get personal help comparing the two paths in Columbus?
- CMS — Medicare Part D program rules (medicare.gov)
- CMS — Medicare basics (medicare.gov)
For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.
Also for Columbus
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This page was last updated: October 6, 2026.