Enrollment & Timing
New plan year, new numbers: what to recheck before January
Free. Commission-free. No agenda. Just the facts about what changes each year.
What changes each year
Medicare does not stay perfectly still from one year to the next. Some costs reset. Some plan rules change. Some drug lists, pharmacy arrangements, provider networks, and benefits shift for the new plan year.
That does not mean something is wrong. It means your old assumptions may need a quick review before January.
The most useful place to start is your plan's notice. If you are in a Medicare Advantage or Part D plan, the Annual Notice of Change explains what will be different for the coming year. If you use cost tools, make sure they are using the current year's figures.
This page does not list annual dollar amounts because those figures change. The safer path is to use the current tools when you are ready to check costs.
What to actually do
Before the new plan year begins, review the items that can affect your real life.
- Check your plan's Annual Notice of Change.
- Confirm your doctors and hospitals for the new year.
- Confirm your medications and pharmacy.
- Look for new prior authorization, step therapy, referral, or network rules.
- Rerun cost estimates with the current year's figures.
- If your income changed, check whether IRMAA could apply.
- Save any notices that say your plan is ending, changing, or moving you into another plan.
You do not need to memorize every number. You need to know which numbers affect you and where to check them.
See what it could cost
Use the Out-of-Pocket Estimator when you want to think through a medical-cost scenario using current figures. Use the IRMAA Calculator if income may affect your Medicare premiums.
If the numbers connect to a bigger decision, Fern can help you slow the situation down and list what to verify before you change anything.
Free tool
Out-of-Pocket Estimator
Think through a medical-cost scenario using current-year figures before making any coverage decisions.
Use the tool →Free tool
IRMAA Calculator
Check whether income-related Medicare premium adjustments could apply to you this year.
Use the tool →Date reminders
Get a heads-up when the new-year numbers are ready to review.
One short email before each window opens — nothing else. No plans, no sales calls, no noise.
Free. Unsubscribe anytime. We never share your email.
✓ You're on the list. We'll send a calm heads-up before each Medicare window — and nothing else.
Common questions
Why do Medicare numbers change each year?
Some Medicare figures and plan details are updated annually. That can affect premiums, deductibles, out-of-pocket exposure, drug coverage, or plan rules, depending on your coverage.
Should I change plans just because a number changed?
Not automatically. A changed number is a reason to review, not a reason to rush. Check doctors, drugs, total costs, and plan rules before deciding whether a change matters.
Where should I look first?
Start with your plan's Annual Notice of Change if you are in a Medicare Advantage or Part D plan. Then use current-year tools to estimate costs and check whether the change affects your situation.
Does IRMAA change every year?
IRMAA is tied to income and Medicare premium rules, so it should be checked with current figures. If your income changed because of retirement, a one-time event, or a life change, it may be worth reviewing before assuming last year's premium still applies.