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HomeMedicare AdvantageIllinoisRockfordSecond chances in Rockford: how the Jan. 1–March 31 Medicare Advantage do-over works

Medicare Advantage

Second chances in Rockford: how the Jan. 1–March 31 Medicare Advantage do-over works

ROCKFORD, Ill. — If you signed up for a Medicare Advantage plan during the fall and now you are second-guessing that choice, take a breath. From January 1 through March 31, Medicare gives Advantage members one more chance to change course. It is called the Medicare Advantage Open Enrollment Period, and it runs every year like clockwork.

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Thoughtful older woman at window in Rockford — illustrating this Medicare guideMedicare AdvantageRockford, IL
Photo: Zach Reiner Photo by Zach Reiner on Unsplash

Key takeaways

  • The Medicare Advantage Open Enrollment Period runs January 1 through March 31 and is only for people already enrolled in a Medicare Advantage plan on January 1.
  • During this window you can switch to a different Medicare Advantage plan or drop your plan and return to Original Medicare, with a chance to add a stand-alone Part D drug plan.
  • You can only make one change during this period, and it takes effect the first day of the month after the plan receives your request.
  • People still on Original Medicare cannot use this window to join a Medicare Advantage plan for the first time.

This window is narrower than the fall Annual Enrollment Period, but for Rockford residents who feel stuck with a plan that is not the right fit, it can be the difference between waiting a full year and fixing things now.

Who this window is for

The January–March window is specifically for people who are already in a Medicare Advantage plan as of January 1. If your fall choice is not working — maybe your doctor is not in the network, your prescriptions cost more than you expected, or the plan just feels wrong — this is your opening to adjust.

If you are still on Original Medicare (Parts A and B) and did not join a Medicare Advantage plan during the fall, this is not your window. You would generally need to wait for the next Annual Enrollment Period (October 15 – December 7) unless you qualify for a Special Enrollment Period.

What you can actually change

Under Medicare's rules, during Jan. 1 – March 31 you may:

What you cannot do in this window:

Your new coverage begins the first day of the month after the plan gets your enrollment request. So a change made in February typically starts March 1.

Why Rockford residents might use it

Rockford is in Winnebago County, which had a healthy number of Medicare Advantage plans available for 2026. If the plan you picked last fall is not clicking, there are other options to consider without waiting until fall — check your plan's ANOC and Medicare.gov's Plan Finder for the 2027 lineup.

Common reasons people revisit their choice in January or February:

That last one comes with a caveat worth knowing: outside your initial Medigap open enrollment or a guaranteed-issue situation, Medigap insurers in Illinois can use medical underwriting. Talk to a licensed Illinois broker or your local SHIP counselor before dropping Advantage coverage, so you understand whether a Medigap policy will be available to you.

A few Part D numbers to keep in mind

Whichever direction you go, some program-wide Part D figures apply:

These apply to Medicare drug coverage generally, whether it is bundled inside an Advantage plan or a stand-alone Part D plan.

How to make a change the right way

You do not need to cancel your old plan first. When you enroll in a new Medicare Advantage plan, your old one ends automatically. If you are returning to Original Medicare and want drug coverage, enrolling in a stand-alone Part D plan will also disenroll you from your Advantage plan.

Before you change:

You can compare plans available in Winnebago County at Medicare.gov, or call 1-800-MEDICARE (TTY 1-877-486-2048), 24 hours a day, 7 days a week.

For free, unbiased local help, Illinois residents can contact the Senior Health Insurance Program (SHIP), the state's official counseling service. Rockford-area residents can also reach out to the Northwestern Illinois Area Agency on Aging for referrals.

By the numbers

Medicare Part B premium, 2006–2026

The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.

$0$50$100$150$200200820122016202020242026

Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.

By the numbers

How people get Medicare in Winnebago County

59% are on Medicare Advantage
(MA penetration in Winnebago County)
59%
41%
Medicare Advantage Medicare Supplement (Medigap) Original Medicare only
U.S. average

MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.

Key dates

Medicare enrollment periods at a glance

  • Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
  • October 15 – December 7Annual Enrollment PeriodAnyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
  • January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
  • January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
  • VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.

Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.

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See Medicare options serving Rockford & speak with a licensed agent

Medicare Advantage companies in Winnebago County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
Aetna (CVS Health)National—Yes
HumanaNational—Yes
UnitedHealthcareNational—Yes
Zing Health Consolidator IncRegional—Yes
Devoted Health IncRegional—Yes
Centene (WellCare)National—Yes
Enrollment data: CMS Medicare Advantage enrollment by company (county level). Figures shown are illustrative sample data pending the current CMS file. Listed by enrollment size, largest first — this is not a ranking, recommendation, or endorsement of any company or plan.

Provided by licensed insurance partners; MyMedicarePlans.org may be compensated. Not a ranking or endorsement of any plan.

Explore

When can you enroll? An interactive year

JFMAMJJASOND
October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Explore

The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Good to know

Frequently asked questions

Can I switch Medicare Advantage plans more than once between January and March?
No. During the Medicare Advantage Open Enrollment Period, Medicare allows one change. Once your new enrollment is processed, that is your plan until the next Annual Enrollment Period in the fall, unless you qualify for a Special Enrollment Period (for example, if you move out of your plan's service area).
When will my new plan actually start?
Your new coverage begins the first day of the month after the plan receives your enrollment request. If you enroll in mid-February, your coverage typically starts March 1.
I'm on Original Medicare. Can I use this window to join a Medicare Advantage plan?
No. The Jan. 1 – March 31 window is only for people already enrolled in a Medicare Advantage plan on January 1. If you are on Original Medicare and want to join an Advantage plan, you generally have to wait for the Annual Enrollment Period (Oct. 15 – Dec. 7) unless a Special Enrollment Period applies to you.
If I drop my Advantage plan and go back to Original Medicare, can I get a Medigap policy?
Sometimes, but not always automatically. Outside your initial six-month Medigap open enrollment period or a guaranteed-issue situation, Illinois insurers can use medical underwriting, which means you could be denied or charged more based on your health. It is worth speaking with your SHIP counselor or a licensed broker before you make the switch. ## Where to get trustworthy help For official Medicare information, visit [Medicare.gov](https://www.medicare.gov) or call 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048, any time, day or night. For free one-on-one counseling in Illinois, contact the Senior Health Insurance Program (SHIP) at 1-800-252-8966. These resources can walk you through your specific situation without trying to sell you anything.
Sources & further reading
  • CMS — Medicare enrollment periods (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Also for Rockford

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This page was last updated: September 29, 2026.

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