Medicare Part D in New Hampshire: What's New for 2027

If prescription costs are your main Medicare worry in New Hampshire, 2027 brings real relief: a hard $2,400 ceiling on what you pay out of pocket. We explain how Part D works, phase by phase, and what's new across New Hampshire.

One fact shapes every Medicare decision in New Hampshire: your county, not your state, sets your options. Neighboring counties can look surprisingly different, which is exactly why the guides here are local.

About 31% across New Hampshire have chosen Medicare Advantage over Original Medicare, though that share swings a lot depending on where you live.

Ahead: the companies active statewide, how Original Medicare, Advantage, Medigap and Part D fit together, the shared 2027 costs, enrollment windows, free unbiased help, and a guide for every New Hampshire city.

How Part D drug coverage works

Medicare Part D covers prescription drugs. You can get it two ways: as a stand-alone plan added to Original Medicare, or built into a Medicare Advantage plan that includes drug coverage. Either way, the basic structure is set by Medicare and the plans are run by private insurers.

For 2027, coverage moves through three phases — a deductible phase (no more than $700), an initial coverage phase, then a catastrophic phase. The old 'donut hole' gap is gone, and an annual out-of-pocket cap limits what you pay for covered drugs. An optional Medicare Prescription Payment Plan also lets you spread those costs across the year.

This guide explains those rules as they apply in New Hampshire. Specific drug lists and pricing vary by plan, so for plan-by-plan detail we point you to Medicare's Plan Finder rather than ranking plans ourselves.

What Medicare costs in 2027

It helps to separate the costs everyone shares from the costs that vary by plan. The program-level numbers here are set nationally — the same whether you're in a big city or a rural county.

Part B premium. Most people pay the standard Part B premium of $202.90 a month in 2026 (2026 amount; 2027 figure will be posted when CMS releases it). Part A is premium-free for most people who worked and paid Medicare taxes long enough.

Part D drug costs. In 2027, a Part D plan's yearly deductible can be no more than $700, and a $2,400 cap limits what you pay out of pocket for covered prescriptions across the year — a real change for anyone with high drug costs.

Higher earners pay more for Parts B and D through an income-related adjustment called IRMAA, which for 2026 starts above $109,000 in annual income for an individual and is based on your 2024 tax return. Most people fall below that line and pay the standard amounts. The 2027 brackets will be posted when CMS releases them.

Plan-specific costs. What an individual plan charges — its premium, deductible, copays, and what it covers — varies by plan and changes yearly. We don't publish those figures or rank plans; Medicare's Plan Finder shows the current details for your situation, and a licensed agent can walk you through them.

When you can enroll or make changes

Medicare's enrollment windows are federal — the same nationwide — so the timing below applies wherever you live.

Your first window (IEP). When you're new to Medicare, your Initial Enrollment Period is the 7-month window around your 65th birthday month. Signing up on time helps you avoid late penalties that can follow you for years.

Annual Enrollment Period (AEP). Each fall, from October 15 – December 7, anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Medicare Advantage Open Enrollment. From January 1 – March 31, if you're already in an Advantage plan you get one chance to switch plans or return to Original Medicare.

Special Enrollment Periods can also open after certain life events, like moving or losing other coverage. The interactive calendar further down lays the year out visually.

Getting unbiased help in New Hampshire

You never have to make these decisions alone, and you don't have to pay for good help. A few free, trustworthy starting points:

Medicare.gov and 1-800-MEDICARE (TTY 1-877-486-2048) are the official sources for plan details and the Plan Finder. Licensed agents can also compare options with you and handle enrollment.

And to be clear about who we are: MyMedicarePlans.org is a privately owned, independent educational resource. We are not Medicare, not a government agency, and not affiliated with one. We publish plain-language information to help you get oriented — then point you to the official sources and licensed professionals for decisions about specific plans.

New Hampshire cities

Pick your city for the county-level picture, the companies active in your area, and local guides: