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Medicare · Daily

Understanding your Medicare annual notice of change (ANOC)

Each fall, if you have a Medicare Advantage or Part D plan, you will receive an Annual Notice of Change. This document is crucial for understanding how your plan will operate in the coming year and for ensuring it still meets your needs.

By Editorial Desk · The Health Almanac Editorial TeamPublished July 28, 20265 min read

As a Medicare beneficiary with a Medicare Advantage (Part C) plan or a stand-alone Medicare Prescription Drug (Part D) plan, you will receive an important document each fall: the Annual Notice of Change (ANOC). This notice arrives in September and details any modifications to your plan that will take effect the following January 1st.

While it might seem like just another piece of mail, the ANOC is your guide to understanding how your coverage, costs, and benefits might shift in the new year. Taking the time to review it can help you avoid surprises and ensure your health care needs continue to be met.

What the ANOC covers

Your ANOC will outline changes in several key areas. These typically include:

  • Premiums: The monthly amount you pay for your plan.
  • Deductibles: The amount you must pay out-of-pocket before your plan begins to pay.
  • Copayments and Coinsurance: The fixed amount or percentage you pay for covered services after meeting your deductible.
  • Formulary (Drug List): Changes in which prescription drugs are covered, and at what tier (which affects cost).
  • Network Providers: Updates to the list of doctors, hospitals, and pharmacies that are part of your plan's network.
  • Benefits: Any new benefits offered or existing benefits that are being changed or removed.

It's important to remember that even small adjustments in these areas can have a significant impact on your out-of-pocket costs and access to care throughout the year. For example, a change in your prescription drug's tier could mean a higher copayment, or a doctor leaving the network could require you to find a new primary care provider.

Why reviewing your ANOC matters

Reviewing your ANOC is a practical step toward managing your health care. Changes outlined in the ANOC are not optional; they will automatically apply to your plan starting January 1st if you do not make a change during the Annual Enrollment Period (AEP). The AEP, which runs from October 15th to December 7th each year, is the time when you can compare your current plan with others available in your area and decide if you want to switch plans.

If you find that your current plan's changes for the coming year no longer suit your needs, the AEP gives you the opportunity to choose a different plan that better aligns with your budget, health conditions, and preferred providers. Ignoring your ANOC could mean continuing with a plan that has higher costs or fewer benefits for services you rely on.

What to do after receiving your ANOC

Upon receiving your ANOC, set aside some time to read it carefully. Compare the upcoming year's details to your current plan and to your anticipated health care needs. Consider these questions:

  • Are my preferred doctors, specialists, and hospitals still in the plan's network?
  • Are my current medications still covered, and how will their costs change?
  • Will my overall out-of-pocket costs (premiums, deductibles, copays) increase significantly?
  • Are there any new benefits that might be valuable to me, or valuable benefits that are being removed?

If you have questions or concerns after reviewing your ANOC, you can contact your plan directly for clarification. You may also consult resources like your State Health Insurance Assistance Program (SHIP) or Medicare's official website (Medicare.gov) during the Annual Enrollment Period to compare plan options. Taking this proactive step each fall can help ensure you have the most appropriate and cost-effective Medicare coverage for your personal situation.

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  • updateJuly 28, 2026Daily evergreen · Medicare
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