Senior Benefit Assistance is a licensed Medicare agency. This guide was written by our licensed agents in October 2026 to walk you through your Annual Notice of Change the same way we would on a call.
Every fall, your Medicare Advantage or drug plan has to send you a letter. Most people set it aside. One member in Boise didn't, and what he found in the fine print changed his whole plan for 2027.
His plan's Annual Notice of Change, the ANOC, contained a small table comparing 2026 coverage to 2027 coverage. One row read, in effect: "Fitness program: Covered in 2026 → Not covered in 2027." Because he read it in September, he had the entire enrollment window to respond.
Here's how to read yours the same way.
What is the Medicare Annual Notice of Change (ANOC)?
The ANOC is not a bill and not a renewal form. It's a federally required disclosure. Federal regulation says your plan must get it to you no later than September 30 each year, in a standardized format, so you have time to act during the Annual Enrollment Period, which opened October 15 and runs through December 7.
Its job is to tell you every material thing changing about your plan on January 1: costs, coverage, drugs, networks. What it says about 2027 is what you'll live with if you stay, whether you read it or not. If you do nothing during AEP (October 15 – December 7), your plan renews automatically with the new terms.
4 Things to Check on Your 2027 Medicare ANOC (and the One Document to Keep Beside It)
You don't need to read every page. Start with these:
1. The change summary table. Usually near the front. Two columns, this year vs. next year, for premium, deductible, out-of-pocket maximum, and key benefits. This is where the Boise member caught the fitness cut. Scan every row. Anything that moved, circle.
2. Your drugs. Find the formulary section (drug list). For each prescription you take: is it still covered? On what tier? With what copay? A drug that moved from tier 2 to tier 4 can cost you hundreds more, and 2027 brings real changes, like Xarelto coming off Medicare's negotiated-price list for 2027 because a generic version appeared. This section alone is worth the price of the envelope.
3. Your doctors and pharmacy. Check the provider and pharmacy directory notes. Networks shrink. If your plan dropped your doctor or your pharmacy moved to non-preferred status, you'll find out here first, not at the appointment desk in February. Here first is better.
4. The premium and the deductible. Write down both numbers for 2027 and compare them to 2026. For 2027, note that Part D plans can charge up to a $700 deductible (up from $615). Many charge less, but yours might not.
5. The Evidence of Coverage. The ANOC usually arrives with (or near) the EOC, the full rulebook. You don't need to read it cover to cover, but know where it is when a question comes up mid-year.
What to do with what you find
- Nothing changed that affects you? You don't need to do anything. Your plan renews.
- Something changed? You have until December 7 to compare alternatives. Run your exact prescriptions through the Plan Finder at medicare.gov and compare total yearly cost: premium plus drugs plus expected copays.
- Your plan is ending entirely? That's a separate, more urgent notice (the plan must mail it at least 90 days before the end date). It triggers special rights, including, in many cases, a guaranteed right to buy a Medigap policy with no health questions. Don't let that letter sit.
- Didn't get your ANOC by September 30? Call your plan and ask for it. Don't wait.
Free help reading it
You don't have to decode it alone. Senior Benefit Assistance will walk through your ANOC with you, line by line, and tell you plainly whether the changes matter for you. Call 1-866-340-3441. Bring the letter, a list of your prescriptions, and your doctors' names. That's all we need.
The Boise member's story isn't about a gym benefit. It's about the habit: open the envelope, read the table, and give yourself the full enrollment window to act. Fifteen minutes with that table beats a nasty surprise in January.
Frequently asked questions
What happens if I don't receive my ANOC? Your plan must get it to you no later than September 30. If it has not arrived, call your plan and ask for it. Don't wait: the Annual Enrollment Period runs October 15 to December 7, and the ANOC is what tells you what changes on January 1.
What happens if I do nothing during the Annual Enrollment Period? Your plan renews automatically with the new 2027 terms, whether you read the ANOC or not. If a change in the ANOC affects you, December 7 is the last day of the Annual Enrollment Period to compare alternatives and make a different choice.
Is the ANOC the same as a plan cancellation notice? No. The ANOC describes changes to a plan that continues into the next year. A plan that is ending entirely sends a separate notice, which the plan must mail at least 90 days before the end date. That notice triggers special rights, including, in many cases, a guaranteed right to buy a Medigap policy with no health questions.
Sources: 42 CFR 422.2267(e)(3) (ANOC timing); 42 CFR 422.62(a)(2)(iii) (AEP dates); Medicare.gov. Beneficiary experience paraphrased from public community-board discussion, October 2026.