Medicare 2026

Detroit Medicare in 2027: the Part D numbers CMS has locked, and what's still to come

DETROIT — Fall 2026. If you have Medicare in Detroit, this is the season to open the mail, not file it. The Annual Enrollment Period runs October 15 through December 7, 2026, and any change you make takes effect January 1, 2027. CMS has already locked in the main Part D figures for next year, but a few important numbers — including the 2027 Part B premium — are still coming later this fall. Here is what Detroit residents can act on now, and what to wait for before deciding.

What CMS has already confirmed for 2027

Three Part D numbers are locked in and apply nationwide, including Detroit:

• Part D out-of-pocket cap: $2,400 in 2027 (it is $2,100 in 2026). Once your out-of-pocket spending on covered drugs reaches that cap, you pay $0 for covered drugs the rest of the calendar year.
• Part D maximum deductible: $700 in 2027 (it is $615 in 2026). This is the most a stand-alone or Medicare Advantage drug plan can charge as a deductible; many plans set theirs lower.
• Part D national base beneficiary premium: $41.33 for 2027. This is a formula input CMS uses — not the premium any specific plan charges.

The coverage gap (the old "donut hole") is gone as of 2025, and Part D now has three phases: deductible, initial coverage, and catastrophic. The Medicare Prescription Payment Plan is still available in 2027 — it lets you spread your drug costs across the calendar year in monthly installments instead of paying at the pharmacy counter.

What is not announced yet

Two big pieces of the 2027 picture are still pending:

• The 2027 Part B standard premium and deductible.
• The 2027 IRMAA income brackets and surcharges (the extra amounts higher-income beneficiaries pay for Part B and Part D).

CMS normally publishes these together in the fall, usually November. Until then, there are no official 2027 numbers to quote. We'll avoid estimates and third-party projections — if a figure is not final, we won't put it in your hands as if it were. For 2026, as a point of reference, IRMAA surcharges begin above $109,000 in income for a single filer.

Read your ANOC — this is the single most important letter

If you are already in a Medicare Advantage plan or a stand-alone Part D plan, your insurer mailed (or posted online) your Annual Notice of Change in September 2026. The ANOC lists, for your specific plan:

• Premium, deductible and copay changes for 2027.
• Formulary (drug list) changes.
• Provider or pharmacy network changes.
• Whether the plan is being discontinued, consolidated or renamed.

If you cannot find it, call your plan's member services number and ask them to resend it. Nothing in a Detroit-area news article can tell you what your plan is doing — the ANOC can.

If you do nothing and your plan is offered again next year, you stay in it with the 2027 changes applied. If your plan is not returning, your insurer will tell you in writing, and you have a Special Enrollment Period to pick something else.

How the local lineup is moving in Wayne County

Detroit is in Wayne County, where plan availability is set. For 2026, the county has 90 Medicare Advantage plans from 16 carriers, and every one of them includes drug coverage. By plan type: 31 HMO, 18 HMO-POS, and 41 PPO. There are 21 Special Needs Plans (SNPs) for people with specific conditions, dual Medicare-Medicaid eligibility, or who live in long-term care.

Looking ahead to 2027 in the county: 16 plans are not returning, 12 are new, and 5 are being renamed. A rename does not change the underlying contract, but it is still worth confirming in your ANOC that the plan ID matches what you expect.

One note for Detroit readers who use stand-alone Part D (a drug plan paired with Original Medicare or a Medigap policy): the counts above are Medicare Advantage plans. Stand-alone Part D availability is published separately by CMS, and the Plan Finder at medicare.gov is the right place to check it for your ZIP code.

The table below lists every Medicare Advantage plan offered in Wayne County for 2026, grouped by carrier — from Aetna and Blue Care Network through Humana, Priority Health Medicare, UnitedHealthcare and Zing Health. Use it to see who is in your market; use the Plan Finder to compare specifics.

How to decide, step by step

1. Pull out your ANOC and highlight anything that changed: premium, drug tiers, specialist copays, your doctors, your pharmacy. 2. List your drugs with dose and frequency. Formularies change every year, and this is the single biggest reason people's costs shift. 3. Confirm your doctors and hospital are still in-network for 2027. Henry Ford, Detroit Medical Center, Corewell, Trinity Health and Ascension all participate with different carriers in different ways. 4. Compare on medicare.gov's Plan Finder. It is the only tool that pulls live 2027 plan data from CMS once open enrollment begins. 5. Wait for the Part B and IRMAA figures if your decision depends on them — they typically land in November, inside the enrollment window. 6. Make any change by December 7, 2026. If you are in Medicare Advantage on January 1, you also get the Medicare Advantage Open Enrollment Period (January 1 – March 31, 2027) to switch once.

Where to get free, local help

• medicare.gov — plan comparisons, your personal account, and the official 2027 figures as CMS releases them.
• 1-800-MEDICARE (1-800-633-4227), 24/7.
• Michigan MMAP (Medicare/Medicaid Assistance Program) — the state's SHIP. Free, unbiased, one-on-one counseling for Detroit residents. Call 1-800-803-7174.