Medicare Open Enrollment 2026 in Metro Detroit: How to Check a Parent's Plan Before December 7

By Detroit Senior Advisor Care Team · October 15, 2026

Medicare Open Enrollment 2026 in Metro Detroit: What Changes Today and What Stays Put

Medicare open enrollment 2026 in Metro Detroit begins today, October 15, and runs through December 7. During this Annual Enrollment Period, anyone with Medicare can switch between Original Medicare and a Medicare Advantage plan, change from one Medicare Advantage plan to another, or add, drop, or change a Part D prescription drug plan. Whatever is chosen takes effect January 1, 2027. For families in Wayne, Oakland, Macomb, and Washtenaw counties, the window matters because plan networks are built around specific health systems, and a parent's cardiologist at Henry Ford, primary care doctor in the Corewell Health network, or specialist at Michigan Medicine in Ann Arbor may be in one plan's network and out of another's.

What does not change is just as important. Open enrollment does not alter the Part B premium schedule set by the federal government, and it does not move anyone into Michigan-licensed care. Medicare, including Medicare Advantage, does not pay for long-term custodial care, meaning the room, board, and daily help with bathing and dressing at a Home for the Aged (HFA) or Adult Foster Care (AFC) home licensed by the Michigan Department of Licensing and Regulatory Affairs (LARA). It pays for medical services: hospital stays, doctor visits, limited skilled nursing rehabilitation, and hospice. Families often discover this gap only after a hospital discharge, which is why October is a useful month to review coverage before a crisis rather than during one.

Original Medicare or Medicare Advantage: The Trade-Offs for Older Metro Detroit Residents

Original Medicare lets a person see any doctor or hospital in the country that accepts Medicare, with no network and no referral requirement. The trade-off is cost-sharing: a Part B deductible, 20 percent coinsurance with no annual out-of-pocket cap, and a separate Part D plan for prescriptions. Many Michigan retirees from the auto industry, the city of Detroit, or school districts also have retiree health coverage that wraps around Medicare, and some of those employer plans have their own annual choices or deadlines that can differ from the October 15 to December 7 window. Anyone with retiree coverage should confirm with the plan administrator before changing anything, because dropping an employer plan can be difficult or impossible to reverse.

Medicare Advantage plans bundle hospital, medical, and often drug coverage through a private insurer, usually with a lower or zero monthly premium beyond Part B and an annual out-of-pocket maximum. They also use networks, prior authorization, and sometimes referrals. In Metro Detroit, the practical question is which plans include a parent's specific doctors and hospital, not which plan has the most extras. Dental, vision, and hearing allowances look attractive, but a plan that drops a trusted neurologist or sends a parent to a different hospital system for rehab after a fall can cost far more in disruption than the benefits are worth. A useful test is to list every doctor, pharmacy, and hospital a parent uses and check each one against the plan directory before enrolling.

Medigap, Medicare Advantage, and the Switching Rules Families Often Miss

One of the least understood rules is that the freedom to switch is not symmetrical. Moving from Medicare Advantage back to Original Medicare during open enrollment is allowed, but buying a Medigap supplement policy afterward is a separate matter. Outside a person's initial Medigap enrollment period or a specific guaranteed-issue situation, Michigan insurers may be able to use medical underwriting, which means a parent with health conditions could be turned down or charged more. Anyone considering leaving Medicare Advantage for Original Medicare plus Medigap should get the Medigap application answer in hand before cancelling the existing plan.

People already in a Medicare Advantage plan also get a second chance. The Medicare Advantage Open Enrollment Period, January 1 through March 31, allows a one-time switch to a different Medicare Advantage plan or back to Original Medicare. It does not allow a switch from Original Medicare into Medicare Advantage. Special enrollment periods exist for events such as moving out of a plan's service area, which can apply when a parent relocates from Oakland County to a daughter's home near Ann Arbor, or when a parent moves into a licensed AFC or HFA home outside the prior plan's area. Moves between counties can change which plans are even available, so the address on file matters.

Part D, Prescription Costs, and Extra Help for Low-Income Seniors in Michigan

Drug coverage deserves its own review every year because formularies, tiers, and pharmacy networks change. A medication that was a low-cost generic in 2026 may move to a higher tier in 2027, and a preferred pharmacy arrangement can make the same prescription cost noticeably different at a neighborhood pharmacy in Livonia than at a big-box pharmacy in Warren. The Medicare Plan Finder at Medicare.gov allows a person to enter their exact drugs and doses and compare estimated annual costs across plans. Families should run this comparison every autumn, not only when a premium letter arrives.

Seniors with limited income and resources may qualify for the federal Extra Help program, which lowers Part D premiums and copayments, and Michigan's Medicare Savings Programs can pay Part B premiums for those who qualify. Neither requires moving into a nursing home or enrolling in Medicaid long-term care. Many eligible Detroit-area seniors never apply because they assume their Social Security or pension is too high. A free counselor can check eligibility in minutes, and applying costs nothing.

Free Local Help: MMAP, Area Agencies on Aging, and Dual-Eligible Options

Michigan's Medicare/Medicaid Assistance Program (MMAP) provides free, unbiased counseling and does not sell plans or earn commissions. Counselors are available through the statewide line at 1-800-803-7174 and through local partners connected to the Detroit Area Agency on Aging, The Senior Alliance in western and southern Wayne County, and Area Agency on Aging 1-B covering Oakland, Macomb, and Washtenaw counties. Counseling appointments fill up quickly between mid-October and early December, so booking early is wise. The national Medicare line, 1-800-633-4227, is available for general questions. Be cautious with unsolicited calls, mailers, and seminars that promise gift cards or claim a plan is government-endorsed, since this season is also peak time for sales pressure and scams.

Seniors who qualify for both Medicare and Medicaid are called dual eligible, and they have additional options, including MI Health Link in parts of Southeast Michigan and PACE Southeast Michigan for those who meet the nursing-facility level-of-care criteria and live in the service area. Dual-eligible beneficiaries also have more flexible switching rules than the October to December window, so a parent in this group should ask a counselor about current options before assuming they must wait. For families weighing a move into assisted living, the best order is to review Medicare coverage first, then explore MI Choice Waiver services or private-pay options, and finally tour LARA-licensed homes whose licensing records can be checked online.

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Common questions

When is Medicare open enrollment 2026 in Metro Detroit, and when does coverage start?

Medicare open enrollment, formally called the Annual Enrollment Period, runs from October 15 through December 7 each year, and it applies equally in Detroit, Troy, Warren, Dearborn, and Ann Arbor because it is a federal schedule. Changes made during this window take effect January 1 of the following year, so choices made now apply to 2027 care. People can switch between Original Medicare and Medicare Advantage, change Medicare Advantage plans, and join, drop, or switch Part D drug plans. If someone submits multiple changes, the last one received by December 7 generally counts. Because retiree plans from employers such as the auto companies, school districts, or municipalities may follow different rules, check with the plan administrator before leaving any employer coverage.

Should my parent in a Michigan assisted living home switch Medicare plans this fall?

It depends on whether the current plan still includes their doctors, preferred pharmacy, and medications for 2027. Medicare, including Medicare Advantage, does not pay the monthly room, board, and care fees at a LARA-licensed Home for the Aged or Adult Foster Care home, so a plan change will not reduce those costs. What a plan change can affect is doctor access, specialist referrals, prescription copays, and rehabilitation coverage after a hospital stay. A parent who has moved into a home in another county should also confirm the plan still serves their new address. A free MMAP counselor can compare options for their specific drug list and care providers, and can flag when the answer is to leave things alone.

Can my parent go back to Original Medicare and buy Medigap in Michigan?

Switching from Medicare Advantage back to Original Medicare is allowed during open enrollment, but getting a Medigap supplement is a separate approval. Outside a person's initial Medigap enrollment period or a qualifying guaranteed-issue situation, insurers in Michigan may be allowed to review health history and decline coverage or charge more. That means someone with diabetes, heart disease, or a recent hospitalization could face difficulty. The safe sequence is to apply for the Medigap policy and receive written acceptance before cancelling the Medicare Advantage plan. Because the rules have exceptions and the timing is strict, speaking with an MMAP counselor before submitting any paperwork protects against a gap in coverage that can be costly and hard to reverse.

Where can Metro Detroit seniors get free, unbiased help comparing Medicare plans?

The Michigan Medicare/Medicaid Assistance Program, known as MMAP, offers free, unbiased counseling by trained volunteers and staff who do not sell insurance. The statewide number is 1-800-803-7174, and local offices work alongside the Detroit Area Agency on Aging, The Senior Alliance for western and southern Wayne County, and Area Agency on Aging 1-B for Oakland, Macomb, and Washtenaw counties. Bring the parent's Medicare card, a list of every medication with dose, the names of all doctors and pharmacies, and any retiree insurance paperwork. Appointments book up from mid-October through early December, so call early. The national Medicare line, 1-800-633-4227, can answer general questions, and Michigan 2-1-1 can connect callers with other local resources.