Medicare Part D
Medicare Part D in 2027: Arlington, Va. Guide
ARLINGTON, Va. — Starting Jan. 1, 2027, people with Medicare Part D will hit a firm ceiling on what they pay out of pocket for covered prescription drugs: $2,400 for the year. The cap, which was $2,100 in 2026, lands as Arlington residents sort through their choices during Medicare's Annual Enrollment Period, which runs through Dec. 7.
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Will your prescriptions still be covered in 2027?
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Key takeaways
- Starting January 1, 2027, the Medicare Part D yearly out-of-pocket cap is $2,400, after which covered prescription drugs cost nothing for the rest of the year.
- The old coverage gap, or "donut hole," is gone, replaced by a three-stage system: deductible, initial coverage, and catastrophic coverage.
- The maximum allowed Part D deductible is $615 in 2026 and $700 in 2027, though some plans may set a lower amount.
- People worried about big upfront costs can join the Medicare Prescription Payment Plan through their Part D or Medicare Advantage drug plan to spread payments across the year instead of paying through Medicare directly.
Here's what's changing for 2027, and what it means as you weigh your options this fall.
The Part D cap, in plain English
Under Part D rules set by the Centers for Medicare & Medicaid Services (CMS), once your out-of-pocket spending on covered prescription drugs reaches $2,400 in 2027 (it is $2,100 in 2026), you pay $0 for the rest of the calendar year on those covered drugs. The cap resets each January.
A few things to know:
- The cap applies to what you spend on covered Part D drugs — deductibles, copays, and coinsurance count toward it. Monthly premiums do not count.
- It applies whether your drug coverage comes through a stand-alone Part D plan or is built into a Medicare Advantage plan that includes drug coverage.
- Drugs your plan doesn't cover don't count toward the cap. That's one reason it's important to check your plan's formulary each year.
The maximum Part D deductible allowed in 2026 is $615, though many plans set theirs lower.
Goodbye, "donut hole"
If you've had Medicare for a while, you probably remember the coverage gap — the "donut hole" — where costs jumped in the middle of the year after you'd used a certain amount of coverage.
That phase is gone. As of 2025, Part D moved to a three-stage design:
1. Deductible (if your plan has one) 2. Initial coverage, where you pay a share of the cost 3. Catastrophic coverage, where you pay $0 after hitting the annual out-of-pocket cap
In 2027, the cap that triggers stage three is $2,400.
The Medicare Prescription Payment Plan
Even with a cap ($2,100 in 2026, $2,400 in 2027), hitting a big pharmacy bill in January can sting. That's why CMS created the Medicare Prescription Payment Plan — sometimes called "M3P" or drug-cost smoothing.
Here's the basic idea:
- It's optional and free to join.
- Instead of paying the pharmacy directly for a covered Part D drug, your plan bills you monthly.
- Your total yearly cost doesn't change. You're just spreading it out.
- It can be most useful for people who expect a high-cost fill early in the year.
You sign up through your Part D or Medicare Advantage drug plan, not through Medicare directly. You can join any time during the year, though joining earlier means more months to spread payments across.
What Arlington residents should check this fall
Arlington is in Arlington County, and Medicare plan availability — both stand-alone Part D plans and Medicare Advantage plans with drug coverage — is set at the county level. That means the menu of options for an Arlington resident is the same as for anyone else in Arlington County.
A few things worth doing before Dec. 7:
- Review your plan's Annual Notice of Change (ANOC). Formularies, pharmacy networks, and cost-sharing tiers can shift from year to year.
- Check that your drugs are still covered in 2027, and at what tier.
- Look at pharmacy options. Some plans have preferred pharmacies with different cost-sharing.
- Consider whether the payment plan makes sense for you based on your prescriptions.
One more note on income: IRMAA surcharges — extra amounts higher-income beneficiaries pay for Part B and Part D — kick in above $109,000 in income for a single filer in 2026 (higher for joint filers). Most people don't pay them, but it's worth knowing.
Key dates to remember
- Oct. 15 – Dec. 7, 2026: Medicare Annual Enrollment Period. This is when you can join, switch, or drop a Part D or Medicare Advantage plan for 2027.
- Jan. 1, 2027: New coverage begins. The $2,400 cap starts fresh.
- Jan. 1 – March 31: Medicare Advantage Open Enrollment Period. If you're already in a Medicare Advantage plan, you get one chance to switch to another Advantage plan or return to Original Medicare.
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 Arlington County
(MA penetration in Arlington 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.
Prescription coverage
How Medicare Part D works in 2027
The old coverage gap (“donut hole”) was eliminated as of 2025 (three phases now). There's a hard yearly cap on what you pay out of pocket for covered drugs — $2,100 in 2026 and $2,400 in 2027 — and you can spread those costs across the year with the Medicare Prescription Payment Plan.
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
Q: Does the $2,100 cap include what I spend on drugs my plan doesn't cover?
Q: If I join the Medicare Prescription Payment Plan, do I pay less overall?
Q: What if I already hit big drug costs early in 2027?
- CMS — Medicare Part D program rules (medicare.gov)
For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.