Why Medicare Advantage Members Should Read Their ANOC — and When to Consider Switching Plans
October 5, 2026
Each fall, Medicare Advantage members receive an important document: the Annual Notice of Change, or ANOC. While it may look like routine paperwork, it contains critical information about how a plan will change in the coming year.
What is the ANOC?
The ANOC is sent to Medicare Advantage and Part D members each year, typically by Sept. 30, ahead of the Annual Enrollment Period, which begins Oct. 15.
It outlines changes to your plan for the next calendar year, including:
- Premiums
- Deductibles and copayments
- Prescription drug coverage
- Provider and pharmacy networks
- Supplemental benefits such as dental, vision or over-the-counter allowances
In short, it explains how a plan will differ from the current year.
Why reading the ANOC matters
Costs may change
Even if you are satisfied with your current plan, costs can shift from year to year. Premiums can increase, copayments may rise and prescription drugs may move to higher pricing tiers.
Reviewing the ANOC helps you avoid surprises when new costs take effect Jan. 1.
Providers may leave the network
Medicare Advantage plans rely on provider networks that can change annually. A physician, specialist or hospital included this year may not participate next year.
If a preferred provider leaves the network, you may face higher out-of-network costs or need to find new providers.
Drug coverage may be different
Plans update their formularies each year. A medication may:
- Move to a different tier
- Require prior authorization
- Be removed from coverage
These changes can affect both access to medication and out-of-pocket costs.
Supplemental benefits can change
Many plans offer extra benefits, such as dental care or over-the-counter allowances. These benefits can be reduced, expanded or restructured annually.
Reading the ANOC helps you determine whether your plan still meets your needs.
When to consider switching plans
After reviewing the ANOC, you may find your plan is no longer the best fit. Common reasons to consider switching include:
Higher costs
A significant increase in premiums, copays or drug costs may make another plan more affordable.
Network changes
If a trusted doctor or hospital is no longer in-network, switching plans may help maintain continuity of care.
Drug coverage concerns
If medications become more expensive or are no longer covered, another plan may offer better options.
Changing health needs
Health needs can evolve over time. A different plan may provide better coverage for services or benefits that are now more important.
Key enrollment window
You can make changes during the Annual Enrollment Period:
Oct. 15 through Dec. 7
During this time, you can:
- Switch to another Medicare Advantage plan
- Return to Original Medicare
- Join or change a Part D prescription drug plan
New coverage begins Jan. 1.
Tips for reviewing the ANOC
- Read the document as soon as it arrives
- Focus on changes to costs, providers and prescriptions
- Compare other available plans
- Seek help if needed from a licensed agent or Medicare resources
Bottom line
The ANOC is a key tool for understanding how Medicare Advantage coverage will change in the coming year.
Taking time to review it — and comparing available options — helps ensure coverage continues to meet both health needs and budget.
Members who stay informed are better positioned to make confident decisions during enrollment season.
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