Medicare Open Enrollment for 2026 coverage has not started yet: it runs from October 15 through December 7, 2026. During this annual window, you can switch, drop, or join a Medicare Advantage plan or a standalone Part D prescription drug plan, with changes generally taking effect January 1, 2027. If Medicare choices feel overwhelming, a local independent agent can help you compare your options side by side and understand how they fit your doctors, prescriptions, and budget.

Prime Insurance Agency helps Medicare-eligible residents in Roselle, IL, and throughout Illinois, Indiana, and Wisconsin review Medicare Supplement and other Medicare coverage options. The goal is not to rush into a plan—it is to make a confident choice before the December 7, 2026 deadline.

Why Medicare Open Enrollment Matters

Medicare plans can change from year to year. Your current plan may adjust its monthly premium, deductible, copays, drug formulary, pharmacy network, provider network, or extra benefits for the following year. Even if you were happy with your coverage this year, it is worth reviewing the Annual Notice of Change that your plan sends each fall.

During the October 15 through December 7 Annual Enrollment Period, you can make several important changes. You may switch from one Medicare Advantage plan to another, leave Medicare Advantage and return to Original Medicare, join or change a standalone Part D prescription drug plan, or move from Original Medicare into a Medicare Advantage plan.

That makes this window especially important for people whose prescriptions, doctors, health needs, travel habits, or budgets have changed. A plan that worked well last year may not be the best fit for 2027.

Medicare Advantage vs. Medicare Supplement

One of the first Medicare decisions is choosing how you want to receive your coverage. The two common paths are Medicare Advantage and Original Medicare paired with a Medicare Supplement policy, also called Medigap.

Medicare Advantage: An Alternative Way to Receive Medicare

Medicare Advantage, also called Part C, is offered by private insurance companies approved by Medicare. These plans provide your Part A hospital coverage and Part B medical coverage, and most include prescription drug coverage as well.

Many Medicare Advantage plans include extra benefits that Original Medicare does not generally cover, such as some dental, vision, hearing, fitness, or over-the-counter benefits. However, plans can have provider networks, prior authorization requirements, referrals, copays, and rules that vary by carrier and county.

For some people, Medicare Advantage can be an appealing all-in-one option. The key is confirming that your preferred doctors, hospitals, prescriptions, and pharmacies work well with the plan before you enroll.

Medicare Supplement: Help With Original Medicare Costs

Medicare Supplement Insurance works alongside Original Medicare. Original Medicare pays its share of covered services first, and a Medigap policy may help pay certain remaining out-of-pocket costs, such as Medicare-approved deductibles, copayments, and coinsurance.

Medigap does not include prescription drug coverage, so people who choose Original Medicare with a Medicare Supplement policy often enroll in a separate Part D plan. Medigap also generally does not cover routine dental, vision, hearing aids, or long-term care, which is why some people consider separate options such as Dental & Vision Insurance.

Unlike Medicare Advantage, Medigap is not a substitute for Original Medicare. It is extra coverage that helps with your share of Original Medicare costs. You cannot use a Medigap policy to pay Medicare Advantage copays, deductibles, or premiums.

Why the Enrollment Window Is Different for Medigap

The October 15 through December 7 enrollment window is primarily for Medicare Advantage and Part D plan changes. It is not a yearly “open enrollment” period that guarantees you can buy any Medigap policy at the best available rate.

Your main federal Medigap Open Enrollment Period is a one-time, six-month window that begins when you are 65 or older and enrolled in Medicare Part B. During that period, insurers generally cannot deny you a Medigap policy because of pre-existing health conditions.

After that window, you may still be able to apply for a Medigap policy, but availability and pricing can depend on health underwriting, carrier rules, and state-specific protections. This is especially important if you are considering leaving a Medicare Advantage plan and returning to Original Medicare. Before making that change, understand whether you can qualify for the Medicare Supplement coverage you want.

Why Plan G and Plan N Are Popular

In Illinois and Indiana, Plan G and Plan N are commonly discussed Medigap options because they can help reduce many of the out-of-pocket costs left by Original Medicare.

Plan G generally covers most Medicare-approved out-of-pocket costs after you pay the annual Part B deductible. It is often considered by people who want more predictable costs after meeting that deductible.

Plan N generally has a lower premium than Plan G, but it may include copays for certain office and emergency room visits. It also may not cover Part B excess charges in states where providers can charge them. Plan N can be appealing for people who want lower monthly premiums and are comfortable paying certain costs as they use care.

Wisconsin uses a different Medigap standardization system than Illinois and Indiana. That means residents should not assume Plan G or Plan N works the same way—or is available in the same form—in Wisconsin. Prime Insurance Agency can help explain the options available where you live.

Why an Independent Medicare Agent Can Help

Medicare.gov is an important resource for comparing plans, checking coverage, and reviewing official Medicare rules. An independent Medicare agent can add a personal conversation to that process by helping you organize the choices around your medications, doctors, preferred hospitals, travel needs, and monthly budget.

Independent agents are typically compensated by insurance carriers when an enrollment is completed, not through a separate fee charged to the consumer. That means you can generally receive help comparing available plans without paying the agent directly. Still, it is reasonable to ask which carriers an agent represents and whether all relevant options in your area are being reviewed.

Prime Insurance Agency can help you compare plans clearly, explain the differences in everyday language, and give you time to ask questions before you decide.

Plan Choices Can Vary by County

Medicare Advantage and Part D options are county-specific. DuPage and Cook counties often have a broad range of Medicare Advantage plans available because of their large populations and provider networks, but plan availability, benefits, premiums, and networks can change each year.

Indiana and Wisconsin counties can have different carrier choices, provider networks, and prescription drug options. A plan available in Schaumburg or DuPage County may not be available—or may work differently—in Lake County, Indiana, or a Wisconsin county. That is why comparing plans using your specific ZIP code is essential.

What to Bring to a Medicare Comparison Appointment

A little preparation can make your Medicare review faster and more accurate. Bring the following information to your appointment:

• Your Medicare card: This confirms your Part A and Part B enrollment details.
• Your current plan cards: Bring Medicare Advantage, Part D, Medigap, employer, retiree, or other coverage information.
• A complete medication list: Include the drug name, dosage, how often you take it, and preferred pharmacy.
• Your doctors and hospitals: List the primary care physicians, specialists, and health systems you want to keep using.
• Your monthly budget: Consider premiums, deductibles, copays, and how much cost predictability matters to you.
• Your priorities: Tell your agent whether you value broad provider access, prescription savings, dental and vision benefits, travel flexibility, or lower monthly premiums.

FAQ

When is Medicare Open Enrollment in 2026?

Medicare Open Enrollment runs from October 15, 2026, through December 7, 2026. Changes generally become effective January 1, 2027.

Can I switch Medicare Advantage plans during Open Enrollment?

Yes. You can join, drop, or switch Medicare Advantage plans during the Annual Enrollment Period.

Can I change my Part D prescription drug plan?

Yes. You can join, drop, or switch standalone Part D plans during the October 15 through December 7 enrollment window.

Can I buy a Medigap policy during Medicare Open Enrollment?

You may be able to apply, but the annual Medicare Open Enrollment Period does not create a general guaranteed-issue right for Medigap. Your personal Medigap enrollment rights depend on your circumstances and state rules.

Do I need a separate Part D plan with Medigap?

Usually, yes. Medigap policies sold today generally do not include prescription drug coverage, so people with Original Medicare and Medigap often choose a separate Part D plan.

Review your options before December 7, 2026. Call Prime Insurance Agency at (630) 539-0123 or contact us online to start the conversation.