Your Medicare Annual Notice of Change arrives every September with critical updates about your healthcare costs. Reviewing this document can save you hundreds of dollars before the December 7 open enrollment deadline.
Insurance companies alter premiums, drug formularies, and provider networks every single year. Ignoring these updates might leave you with higher out-of-pocket expenses or lost doctors starting January 1.
Taking twenty minutes to read your notice puts you in control of your coverage. Use this guide to spot major plan changes for 2027 and protect your household budget.
What Is the Medicare Annual Notice of Change (ANOC)?
The Annual Notice of Change (ANOC) is a mandatory document sent by your private insurance provider each autumn. It outlines every modification to your coverage that will take effect on January 1, 2027.
Federal law required plan sponsors to deliver your 2027 notice by September 30, 2026. This timeline provides two weeks to review changes before the Annual Enrollment Period (AEP) begins on October 15.
Only private Medicare plans issue this notice. You will receive an ANOC if you have a Medicare Advantage (Part C) plan or a standalone Part D prescription drug plan.
If you have Original Medicare paired with a Medicare Supplement Insurance (Medigap) policy, you will not receive an ANOC. Medigap benefits remain standardized by federal law and do not adjust annually.
The Annual Enrollment Period runs from October 15 through December 7, 2026. This window represents your primary opportunity to switch plans, return to Original Medicare, or select new drug coverage.
Every change detailed in your document takes effect on January 1, 2027. Reviewing your notice promptly ensures you avoid unpleasant financial surprises at the pharmacy or doctor’s office.
