Medicare 2026

Boston at 65: how to use your 7-month Medicare window without missing a step

Boston residents approaching their 65th birthday face a stretch of Medicare decisions that come with real deadlines. The good news: the timeline is predictable, and if you know what your Initial Enrollment Period looks like, you can move through it without panic — or penalties.

Medicare 2027Boston, MA

Start with the 7-month window

Your Initial Enrollment Period surrounds your 65th birthday. It begins 3 months before the month you turn 65, includes your birthday month, and runs 3 months after. That is your first — and easiest — chance to sign up for Original Medicare (Part A and Part B) without a late penalty.

Signing up in the first three months usually means your coverage starts the first day of your birthday month. Waiting until your birthday month or later can push your start date back. If you are already receiving Social Security, you are typically enrolled in Parts A and B automatically. If not, you sign up through the Social Security Administration at ssa.gov or by calling them directly.

Decide how you want to get your coverage

Once you have Part A and Part B, you choose how to receive your benefits. There are two main paths:

• Original Medicare (Parts A and B), often paired with a standalone Part D drug plan and, if you want, a Medigap (Medicare Supplement) policy.
• A Medicare Advantage plan (Part C), which bundles Parts A and B — and usually Part D — through a private insurer.

Boston is in Suffolk County, where the list of available Medicare Advantage and Part D plans is set at the county level. That means your ZIP code inside Boston determines which plans you can actually enroll in. You can compare the plans available to you using the Plan Finder at medicare.gov.

Do not overlook Part D

Even if you take few or no prescriptions today, enrolling in Part D (or a Medicare Advantage plan that includes drug coverage) during your IEP matters. If you go without "creditable" drug coverage for too long after you are first eligible, a permanent late-enrollment penalty can be added to your premium later.

For 2027, Part D has some important program-level features to know:

• A $2,400 annual out-of-pocket cap on covered drugs.
• A maximum deductible of $700 (plans can set theirs lower).
• The old coverage gap, or "donut hole," is gone — Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread your drug costs across the year in monthly payments instead of paying big bills at the pharmacy counter.

Think about Medigap timing

If you lean toward Original Medicare, your Medigap Open Enrollment Period is a one-time, 6-month window that starts the month your Part B becomes effective and you are 65 or older. During that window, you have guaranteed-issue rights: insurers cannot turn you down or charge you more based on health history. Massachusetts also has its own Medigap rules that are more consumer-friendly than the federal minimum, so it is worth talking to SHINE (Massachusetts' State Health Insurance Assistance Program) before you decide.

If you are still working at 65

Many Bostonians keep working past 65, often with employer health coverage. Whether to enroll in Part B right away depends on the size of your employer and how your plan works with Medicare. In general:

• If your employer has 20 or more employees, you may be able to delay Part B without penalty and enroll later through a Special Enrollment Period.
• If your employer has fewer than 20 employees, Medicare usually becomes your primary coverage at 65, and delaying can leave gaps.

Ask your HR or benefits administrator in writing how your plan coordinates with Medicare before you skip Part B.

A quick note on higher incomes

Most people pay the standard Part B and Part D premiums, but higher-income enrollees pay an Income-Related Monthly Adjustment Amount (IRMAA). For 2026, IRMAA surcharges begin above $109,000 in income for a single filer (higher for joint filers). Social Security uses your tax return from two years earlier to decide.

Mark the ongoing enrollment dates

After your IEP, Medicare's calendar has two annual windows worth knowing:

• Annual Enrollment Period: October 15 – December 7, when anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan for the following year.
• Medicare Advantage Open Enrollment Period: January 1 – March 31, when people already in a Medicare Advantage plan can switch to another Advantage plan or return to Original Medicare.