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Quick Answer: Medicare’s annual enrollment period, or AEP, runs October 15 through December 7 each year, and changes you make take effect January 1. It is the window for reviewing your Medicare coverage for the year ahead. If you do nothing, coverage generally continues under the new year’s rules and costs, which is why reviewing is the decision even when you choose to stay.
Medicare’s fall window is short, it lands in the middle of the busiest season of the year, and it arrives with a thick envelope most people set aside. That combination is why so many households discover a change in January at the pharmacy counter rather than in October at the kitchen table.
This guide covers what the window is actually for, the envelope worth opening, the three checks that decide whether your plan still fits, what happens if you skip it, and the second window some people have in the new year.
What You Will Learn
- The AEP dates, and when any change you make takes effect
- What the annual notice of change tells you, and why to open it
- The three checks that decide whether your plan still fits
- What happens if you do nothing this fall
- The other Medicare windows, and which one is yours
- How a Madrinas madrina reviews your coverage with you, free and bilingual
The Dates, and What They Govern
AEP runs October 15 through December 7, and anything you change inside that window takes effect January 1. It is not a window for signing up for Medicare for the first time, which has its own enrollment periods around your 65th birthday, and it is not the marketplace open enrollment that people under 65 use. It is the annual review window for people already on Medicare, and the habit that works is simple: review in October, decide in November, leave December for confirming rather than starting.
The Envelope Worth Opening
Before the window opens, your plan mails an annual notice of change. It is not marketing; it is the document that tells you what will be different in January, including changes to what you pay, changes to the list of covered prescriptions, and changes to the network of doctors and pharmacies. Open it even if you intend to stay, because a plan that keeps the same name can still change its rules, and January is a bad month to learn that by surprise.
The Three Checks That Matter
- Your doctors: confirm the doctors and specialists you actually use are in the plan’s network for the coming year, not last year.
- Your prescriptions: check every monthly medication against the plan’s list of covered drugs, because those lists are revised annually and a drug can move tiers or come off entirely.
- Your pharmacy: verify how the plan treats the pharmacy you actually walk into, since that affects what you pay at the counter.
- Your year ahead: a planned procedure, a new diagnosis, more travel to see family, or a move all change which plan fits, so say them out loud during the review.
What Happens If You Do Nothing
In most cases your coverage simply continues, and that is the gentle trap: it continues under the new year’s rules. A plan that served you well this year can begin January with a different drug list, different cost sharing, or a network that no longer includes a doctor you rely on. Nobody sends a second warning. That is why we say reviewing is the decision: staying is a legitimate choice, and it deserves to be made with this year’s information rather than last year’s memory.
The Other Windows, Briefly
AEP is the main event, but it is not the only date on the Medicare calendar. People already in a Medicare Advantage plan have a separate window from January 1 through March 31 to make one change if the fall decision did not work out. Turning 65 brings its own enrollment period tied to your birthday. And certain situations, such as moving out of a plan’s service area or losing other coverage, can open a special enrollment period during the year. If the calendar feels crowded, that is exactly what a free call is for.
Help With Costs Is Worth Asking About
Programs exist to help people with limited income and resources pay for Medicare costs, including help with prescription drug expenses. Many people who would qualify never apply, sometimes because nobody told them these programs exist and sometimes because they assume they earn too much. Eligibility is determined by the government based on your income and resources, so the honest advice is to ask rather than assume, and the asking costs nothing.
The Facts, In One Place
- The window: October 15 through December 7, with changes effective January 1.
- The envelope: your plan’s annual notice of change explains what will be different in January, so open it.
- The checks: doctors, prescriptions, pharmacy, and whatever your year ahead already has scheduled.
- Doing nothing: coverage generally continues, but under the new year’s rules and costs.
How a Madrinas Madrina Helps
A Madrinas madrina reviews your annual notice with you, checks the doctors and prescriptions you named against the options we offer in your area, explains in plain language what changes January 1 and what stays the same, and handles the paperwork if a change makes sense. If nothing should change, we tell you that too. The consultation is free, in English and Spanish, seven days a week, by phone or in person. Every life change deserves a madrina. Call 855-MADRINA to book your fall review.
Frequently Asked Questions
If I am happy with my plan, do I need to do anything during AEP?
Review it, even if you decide to stay. Plans adjust costs, drug lists, and networks each year, so keeping the same plan does not guarantee keeping the same terms. The review takes less time than a doctor’s appointment, and it is the only way to make staying an informed choice.
What if I miss December 7?
In most cases your current coverage continues into January under the new year’s rules. People already in a Medicare Advantage plan also have the January 1 through March 31 window to make one change, and certain life situations can open a special enrollment period during the year.
Is AEP the same as marketplace open enrollment?
No, and this confuses many households: AEP is Medicare’s fall window, October 15 through December 7. Marketplace open enrollment is for people buying their own coverage under 65 and starts November 1 with dates that vary by state. Different systems, different calendars.
How much does help from Madrinas cost?
Nothing: the consultation is free, and a plan’s price is the same whether you enroll with our help or on your own. What you gain is someone reviewing the details with you in your language, before January arrives.
Key Takeaways
- AEP runs October 15 through December 7, and any change you make takes effect January 1.
- Your plan’s annual notice of change explains what will be different in January: open it even if you plan to stay.
- Three checks decide whether a plan still fits: your doctors, your prescriptions, and the pharmacy you actually use.
- Do nothing and coverage generally continues, but under the new year’s rules, so reviewing is the decision.
- Other windows exist: January 1 to March 31 for those in Medicare Advantage plans, plus birthday and special periods.
- Programs help people with limited income and resources pay Medicare costs, and many who qualify never apply.
Book your fall review before December 7. It costs nothing.
★ Your Health, Our Purpose
A Madrinas madrina will read your annual notice with you, check your doctors and prescriptions against the options we offer in your area, and explain what changes January 1, all for free, in English and Spanish. Every life change deserves a madrina. Call 855-MADRINA (855-623-7462), available seven days a week.
Madrinas Insurance · madrinasinsurance.com · 855-MADRINA (855-623-7462)
