Medicare Advantage

Medicare in Detroit: Key 2027 Dates and Deadlines

For 2027, Detroit is looking at 86 Medicare Advantage plans: 12 new, 16 gone since 2026, and 37 still here but changed on premium, deductible, plan type or name, 5 of them under a new name. Below, how the lineup shifted in Wayne County and what to compare, with no plan ranked or recommended.

DETROIT — If you're one of the roughly 293,000 people age 65 or older in Wayne County, the calendar matters as much as the plan choices. Detroit is in Wayne County, where 81 Medicare Advantage plans are available for 2027 — but sorting through them only helps if you act inside the right enrollment window. Miss a deadline, and your options narrow fast.

Here's a plain-language guide to the dates that shape your Medicare year, and what happens if one slips by.

The fall window: October 15 – December 7

This is the Annual Enrollment Period, or AEP. It's the main chance each year for most people to:

• Join, switch, or drop a Medicare Advantage plan.
• Join, switch, or drop a stand-alone Part D drug plan.
• Move from Original Medicare to Medicare Advantage, or the other way around.

Any change you make during AEP takes effect January 1, 2027. If December 7 passes and you did nothing, you're generally locked into your current coverage for the year — unless you qualify for a Special Enrollment Period (more on that below).

One local note: Wayne County has 90 Medicare Advantage plans available for 2026, offered by 14 carriers. That's a lot to sift through, so starting in mid-October rather than early December gives you room to breathe.

The Medicare Advantage Open Enrollment Period: January 1 – March 31

Missed AEP, or had second thoughts after January 1? If you're enrolled in a Medicare Advantage plan, you get one more chance during the Medicare Advantage Open Enrollment Period (MA OEP).

During this window, you can:

• Switch to a different Medicare Advantage plan.
• Drop your Medicare Advantage plan and return to Original Medicare (and add a Part D plan if you need drug coverage).

You can only use this window once, and it's only for people already in a Medicare Advantage plan. If you're in Original Medicare on January 1, MA OEP is not for you.

Changes made here take effect the first of the following month.

What if you miss both windows?

For most people, the answer is: you wait until the next AEP in the fall. But there are exceptions called Special Enrollment Periods (SEPs). Life events can trigger one, including:

• Moving to a new address that changes your plan's service area.
• Losing other coverage, such as employer or union insurance.
• Qualifying for Medicaid or Extra Help with drug costs.
• Your plan leaving the Medicare program.

If any of that happens, don't wait — call 1-800-MEDICARE or your local SHIP counselor to confirm your window and how long it lasts.

First-time Medicare enrollment has its own clock

If you're just turning 65, your Initial Enrollment Period is a seven-month window: the three months before your birthday month, your birthday month, and the three months after. Signing up during the first three months means coverage starts the month you turn 65.

Delaying Part B or Part D without other qualifying coverage can lead to late enrollment penalties that stick to your premium for as long as you have Medicare. This is one of the most common — and most costly — timing mistakes.

A few 2027 program facts worth knowing

These apply nationwide, no matter which plan you pick:

• Part D out-of-pocket cap: $2,400 for the year.
• Part D deductible maximum: $700.
• The coverage gap ("donut hole") is gone as of 2025 — Part D now has three phases.
• Medicare Prescription Payment Plan: an optional program that lets you spread drug costs across monthly payments instead of paying at the pharmacy counter.
• IRMAA surcharges (higher Part B and D premiums for higher incomes) begin above $109,000 for a single filer in 2026.

How to get personal help in Detroit

Plan availability data comes from CMS, but the right choice depends on your doctors, medications, and budget. For unbiased help:

• Medicare.gov — the official Plan Finder tool lets you compare plans side by side.
• 1-800-MEDICARE — available 24/7.
• Michigan's SHIP program (MMAP) — free, one-on-one counseling from trained volunteers.