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Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Medicare Advantage

How to Read Your Medicare Advantage Annual Notice of Change

Written by My65 Playbook Editorial Team

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If you are enrolled in Original Medicare and do not have a Medicare Advantage or Part D plan, this article is not for you; see information about your Original Medicare benefits instead.

Your Medicare Advantage plan sends you an Annual Notice of Change (ANOC) by September 30 each year. This important document tells you about any changes to your plan's costs, coverage, or benefits for the upcoming year, starting January 1.

Key Takeaways

  • Your plan sends an ANOC document by September 30 each year.
  • The ANOC explains all changes for the next calendar year.
  • Reviewing your ANOC helps you decide if your plan still meets your needs.
  • You can use the Annual Open Enrollment Period to switch plans if needed.
  • Check costs, doctors, pharmacies, and drug coverage carefully.

What Is an Annual Notice of Change (ANOC)?

An Annual Notice of Change (ANOC) is a letter from your Medicare Advantage (Part C) plan. It tells you about any changes to your plan's benefits, costs, or service area for the next calendar year. You should receive this notice by September 30 every year.

  1. ANOC Arrives
    September 30
    Your Medicare Advantage plan sends your Annual Notice of Change.
  2. Annual Open Enrollment Begins
    October 15
    You can change your Medicare Advantage or Part D plan.
  3. Annual Open Enrollment Ends
    December 7
    Last day to make changes for coverage starting January 1.
  4. New Coverage Starts
    January 1
    Your chosen plan's benefits and costs take effect.
Reviewing your ANOC in September allows you to make informed decisions during the Annual Open Enrollment Period.

Think of it as a preview of your plan's new terms for the coming year. This allows you to review these changes before the Medicare Annual Open Enrollment Period. That period runs from October 15 to December 7 each year.

If you have a stand-alone Medicare Part D prescription drug plan, you will also receive an ANOC. This notice explains changes to your drug coverage, including costs and formulary updates. Both types of ANOCs are crucial for making informed decisions.

Why Is Your ANOC Important?

Plans can change what they cover and how much you pay each year. Your ANOC is the main way your plan tells you about these updates. It helps you understand if your current plan remains an ideal choice for your health and budget in the upcoming year.

  • Monthly Premiums
    How much you pay each month for the plan itself.
  • Deductibles
    Amount you pay before the plan starts to pay.
  • Copays/Coinsurance
    Your share of costs for services like doctor visits or hospital stays.
  • Out-of-Pocket Maximum
    The most you pay for covered services in a year.
  • Provider Network
    Are your doctors and hospitals still in-network?
  • Pharmacy Network
    Is your preferred pharmacy still covered?
  • Formulary (Drug List)
    How have your prescription drug costs or coverage changed?
  • Extra Benefits
    Any changes to dental, vision, hearing, or fitness programs?
  • Service Area
    Has the geographic area covered by your plan changed?
Your ANOC helps you check key parts of your plan that might change, so you can compare them with next year's benefits.

Medicare Advantage plans often offer extra benefits beyond Original Medicare, though these vary significantly by plan and location. These can include dental, vision, hearing, or fitness programs. The ANOC will highlight any changes to these valuable extras.

Carefully reading your ANOC helps you avoid surprises with your healthcare costs or coverage. It gives you time to compare other options during the Annual Open Enrollment Period. This period is a key time to switch plans if your current one no longer meets your needs.

What Information Does Your ANOC Contain?

Your ANOC is a detailed document. It compares your current plan benefits with the benefits for the next year. You should look for specific sections that cover costs, doctors, drugs, and other services.

Understanding these changes is key. It helps you decide if you want to stay with your current plan. Here are the main things to look for in your ANOC.

Are Your Premiums and Costs Changing?

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Carefully checking your ANOC for changes to costs like premiums and deductibles can prevent unexpected expenses.Photo: cottonbro studio / pexels

The ANOC will show your new monthly premium, if any. Some Medicare Advantage plans have a $0 monthly premium. However, it's important to remember that you still need to pay your Part B premium. For more on this, you might find our article "Why '$0 Premium' Medicare Advantage Isn't Truly Free" helpful.

Current Plan (This Year)Next Year's Plan (From ANOC)
Part D DeductibleUp to $615 in 2026 (varies by plan)Up to $615 in 2026 (varies by plan)
Annual Out-of-Pocket CapVaries by plan$2,100 in 2026 (Part D drugs)
Preferred Pharmacy Copay (Generic)Example: $5Example: $10
Specific Drug (Brand-name)Tier 3, $47 copayTier 4, $95 copay (new prior authorization)
Reviewing your ANOC helps you identify specific changes in drug costs and coverage for the upcoming year.

Check for changes to your deductible, copayments, and coinsurance amounts. These are the amounts you pay for medical services and prescription drugs. A deductible is how much you pay before your plan starts to pay. A copayment is a set amount you pay for a service, like a doctor's visit. Coinsurance is a percentage of the cost you pay.

Your plan's annual maximum out-of-pocket limit is also listed. This is the most you will pay for covered medical services in a year. Once you reach this limit, your plan pays 100% of approved costs. In 2026, the annual out-of-pocket cap for Part D prescription drugs is $2,100.

Will Your Doctors or Hospitals Still Be in Network?

Medicare Advantage plans use networks of doctors, hospitals, and other providers. The ANOC will tell you if your plan's provider network is changing. This is a very important section to review.

  • Dental coverage
    Cleanings, X-rays, dentures
  • Vision benefits
    Eye exams, glasses, contacts
  • Hearing aids
    Exams, device costs
  • Fitness programs
    Gym memberships, wellness classes
  • Over-the-counter (OTC) allowance
    Funds for health products
Many Medicare Advantage plans include valuable extra benefits, and your ANOC will detail any changes to them.

It is vital to confirm that your preferred doctors and hospitals are still part of your plan's network. Leaving the network can mean higher costs or needing to find new providers. Most plans will tell you to check their website or call to confirm your providers are in-network for the next year. You can also refer to our article on "Verifying Your Doctors in a Medicare Advantage Plan Network".

If your current doctors leave the network, consider if switching plans is right for you. Your ANOC may include a list of changes or tell you where to find an updated provider directory.

Are There Changes to Your Pharmacy Network?

Just like doctors, pharmacies can also be in or out of network. The ANOC will alert you to changes in your plan's pharmacy network. It is important to confirm that your preferred pharmacy still accepts your plan.

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
If your plan's service area changes, it's vital to ensure you remain covered where you live.Photo: cottonbro studio / pexels

Using an out-of-network pharmacy can mean paying more for your prescriptions. Some plans offer preferred pharmacies where you pay less for your drugs. Check if your usual pharmacy is still a preferred or in-network option.

If your pharmacy leaves the network or becomes a non-preferred option, your drug costs could rise. This information helps you decide if you need to look for a new plan or a new pharmacy.

How Has Your Drug Coverage Changed?

Your plan's formulary is its list of covered prescription drugs. The ANOC will detail any changes to this list. Drugs can move to different cost tiers, or some drugs might no longer be covered.

$202.90
2026 Standard Part B Premium
Source: medicare.gov
Even with a $0 Medicare Advantage premium, you still pay your Part B premium, which is set annually.

It is crucial to compare your current drug list against the new formulary. Look for any medications you take regularly. See if their cost tier has changed or if they require new prior authorizations.

Prior authorization means your plan needs to approve a drug before you get it. This can affect how quickly you get your medications. For insights into this topic, you might want to read "Medicare Advantage Prior Authorization in 2026: Rules and Denials".

The ANOC will also cover changes to your Part D deductible and your annual out-of-pocket cap for drugs. For 2026, the maximum Part D deductible is $615, though some plans have a lower or $0 deductible. After your deductible, you move into initial coverage. Once you reach the $2,100 annual out-of-pocket cap for 2026, your plan pays 100% of covered drugs for the rest of the year.

If your drug costs are high, remember that the Medicare Prescription Payment Plan is available. This allows you to spread out-of-pocket drug costs over monthly bills. You pay $0 at the pharmacy counter. This benefit is offered by every Medicare drug plan.

Have Extra Benefits Been Added or Removed?

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Many Medicare Advantage plans offer extra benefits like fitness programs, and your ANOC shows how these might change.Photo: cottonbro studio / pexels

Many Medicare Advantage plans offer extra benefits not covered by Original Medicare; these specific benefits and their details vary by plan and location. These can include vision, dental, hearing, gym memberships, or even transportation to medical appointments. Your ANOC will highlight any changes to these benefits.

5 Stars
Highest Medicare Star Rating
Source: medicare.gov
A plan's Star Rating is an indicator of its quality and can change each year, as noted in your ANOC.

For example, your dental coverage might change from one cleaning a year to two. Or, your plan might introduce a new benefit like a healthy food allowance. Conversely, some benefits might be reduced or removed entirely.

Evaluate whether these changes impact your overall healthcare needs. An added benefit could be a pleasant surprise. A removed benefit might make your plan less appealing. Weigh the value of these benefits carefully.

What About Your Plan's Service Area?

The ANOC will also tell you if your plan's service area is changing. Your plan's service area is the geographic region where it offers coverage. If you move outside your plan's service area, your coverage may end.

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Taking notes as you review your ANOC helps you keep track of changes and make an informed decision.Photo: cottonbro studio / pexels

If your plan shrinks its service area and you are no longer covered, this triggers a Special Enrollment Period. This allows you to switch to a new plan. It's rare, but important to check if you live near a border or if you're planning a move.

If your plan leaves Medicare or stops serving your area, you will receive a plan non-renewal notice. This is different from an ANOC and allows you to switch plans during a specific Special Enrollment Period. If you do not choose a new plan, you will automatically be moved to Original Medicare on January 1.

Understanding Your Plan's Star Rating

Medicare uses a Star Rating system to rate the quality and performance of Medicare Advantage and Part D plans. These ratings go from 1 (poor) to 5 (excellent). Your ANOC will tell you your plan's Star Rating for the upcoming year. You can learn more by reading our article, "Medicare Star Ratings: What 5 Stars Means for Your Plan".

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Your ANOC helps you confirm if your trusted doctors remain in your plan's network for the coming year.Photo: cottonbro studio / pexels

A higher Star Rating often means better overall quality and member satisfaction. It covers things like how well the plan manages chronic conditions and member complaints. A plan's Star Rating can be a useful factor when comparing your options.

If your plan's Star Rating drops significantly, it might be a reason to look for other plans. However, remember that Star Ratings are just one factor among many. Consider your own needs and experiences with the plan as well.

Action After Receiving Your ANOC

After you get your ANOC, take the time to read it thoroughly. It's a key step in managing your Medicare coverage. This review helps you understand any changes that might affect your healthcare or your budget.

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Confirming your preferred pharmacy is still in your plan's network can prevent unexpected costs for your medications.Photo: cottonbro studio / pexels

Do not just assume your plan will stay the same. Changes happen every year. Missing these changes could lead to unexpected costs or disruptions in your care. Your ANOC is your opportunity to be proactive.

If you have questions, call your plan directly using the number on your ANOC. They can clarify any details that are unclear. This step can save you time and worry in the long run.

What if Your Plan Changes Too Much?

If your ANOC shows changes that you don't like, you have options. The Annual Open Enrollment Period (October 15 – December 7) is your chance to make changes to your Medicare coverage. During this time, you can:

  • Switch from your current Medicare Advantage plan to a different Medicare Advantage plan.
  • Switch from a Medicare Advantage plan back to Original Medicare.
  • If you switch back to Original Medicare, you can also join a stand-alone Medicare Part D prescription drug plan.
  • Switch from one stand-alone Part D plan to another.
Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Marking the Annual Open Enrollment Period on your calendar helps ensure you don't miss the chance to review your Medicare plan.Photo: cottonbro studio / pexels

If you decide to make a change, your new coverage will begin on January 1 of the upcoming year. It's important to choose wisely, as your next opportunity to change Medicare Advantage plans might not be until the Medicare Advantage Open Enrollment Period (January 1 – March 31).

If you do nothing after receiving your ANOC, you will automatically stay with your current plan. The new benefits, costs, and terms outlined in your ANOC will take effect on January 1.

How to Compare Your Options

Medicare.gov offers tools to help you compare plans. You can enter your current doctors, pharmacies, and prescriptions. The tool will show you plans available in your area that cover them. This makes it easier to see how different plans stack up against your needs.

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Comparing plan options using online tools helps you find a plan that meets your specific health and financial needs.Photo: cottonbro studio / pexels

Consider your overall health, budget, and desired benefits. Do you value lower monthly premiums, or would you prefer lower copayments for doctor visits? Do you take many prescription drugs? These questions can guide your comparison.

Look beyond just the monthly premium. A plan with a $0 premium might have higher deductibles or copayments. Compare the total estimated costs, including what you might pay for medical services and drugs. This full picture helps you make a choice that truly works for you.

Special Circumstances for Switching Plans

There are situations outside the Annual Open Enrollment Period when you can change plans. These are called Special Enrollment Periods. One common Special Enrollment Period occurs if your plan leaves Medicare or stops serving your area.

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Discussing Medicare changes with a trusted family member or advisor can help clarify your options during Special Enrollment Periods.Photo: cottonbro studio / pexels

If your Medicare Advantage plan leaves Medicare or no longer covers your area, you get a special right. You can buy a Medigap policy without health questions. This right applies if you switch to Original Medicare, not another Medicare Advantage plan. This is a significant protection if your plan is ending.

This specific Medigap right is available from the date you get your non-renewal notice until 63 days after your plan coverage ends. It usually covers Medigap Plans A, B, D, and G. For those eligible for Medicare before January 1, 2020, Plans C and F may also be available. Some states offer additional Medigap protections.

This is different from the one-time 6-month Medigap Open Enrollment Period. That period starts the month you are 65 or older and enrolled in Part B. During that time, any insurer must sell you any Medigap policy it offers, regardless of your health.

People who qualify for Extra Help (the Low-Income Subsidy) or have Medicaid also have ongoing Special Enrollment Periods. Since January 1, 2025, they can switch to a stand-alone Part D drug plan once per calendar month. This allows them to switch drug plans or leave a Medicare Advantage plan for Original Medicare plus a stand-alone drug plan. It does not allow joining or switching Medicare Advantage plans. For more information on Extra Help, you might want to check out "Extra Help (LIS): Do You Qualify, and Its Value".

Don't Miss This Important Document

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
The ANOC is vital mail that informs you about your future Medicare coverage; always retrieve and read it.Photo: cottonbro studio / pexels

Your ANOC is not junk mail. It is a critical piece of information that empowers you to control your Medicare coverage. Take the time to review it carefully each fall.

Illustration for: How to Read Your Medicare Advantage Annual Notice of Change
Don't discard your ANOC as junk mail; it holds critical information for your health coverage.Photo: cottonbro studio / pexels

Understanding the changes in your ANOC can lead to better health outcomes and lower costs. Make an informed choice about your Medicare plan for the upcoming year. Your healthcare journey is important, and staying informed is a key step.

If you have any questions about your ANOC or your Medicare options, resources are available. You can contact Medicare directly at 1-800-MEDICARE or visit Medicare.gov. You can also reach out to your local State Health Insurance Program (SHIP) for unbiased guidance. They offer free, personalized counseling to help you understand your Medicare choices.

Remember, your ANOC is your annual opportunity to ensure your Medicare Advantage plan still meets your needs for the year ahead. Use it wisely.


Have questions? Call 1-877-443-3251 to talk it through with a licensed insurance agent. They're paid by the plans they represent, never by you, and the decision stays yours.

We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options. Medicare has neither reviewed nor endorsed this information.

What to do this week

  1. Locate your ANOC document, which arrives by September 30. Set aside dedicated time to read it carefully.
  2. Compare your current plan's benefits and costs with the proposed changes for the next year. Pay close attention to premiums, deductibles, copays, and out-of-pocket maximums.
  3. Verify that your doctors, hospitals, and pharmacies are still in-network for the upcoming year. Call your providers or plan if you have any questions.
  4. Check your prescription drugs against the new formulary (drug list) to see if coverage, cost tiers, or prior authorization rules have changed for your medications.
  5. Use the Medicare.gov Plan Finder tool (available October 1) to compare your current plan with other options in your area during the Annual Open Enrollment Period (October 15 – December 7).

A real example

Isabel, 72, received her Medicare Advantage ANOC in late September. She carefully reviewed it, comparing the new year's information to her current plan. She noticed her monthly premium would stay at $0. However, her copayment for specialist visits was increasing from $30 to $45. More importantly, two of her regular prescription drugs were moving from a preferred generic tier to a non-preferred brand-name tier, which meant higher out-of-pocket costs. She also checked the provider directory. While her cardiologist was still in the network, she realized these cost changes were substantial. Isabel decided to explore other options. During the Annual Open Enrollment Period, she used Medicare.gov's Plan Finder to compare other Medicare Advantage plans in her area. She found a new plan with slightly higher monthly premiums. But, it offered better drug coverage for her specific medications and a lower specialist copay. She switched plans, and her new coverage will begin on January 1.

Medicare Disclaimer

We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options. Medicare has neither reviewed nor endorsed this information.

Frequently asked questions

What is a Medicare Advantage Annual Notice of Change (ANOC)?

The ANOC is a letter from your Medicare Advantage plan. It details all the changes to your plan's benefits, costs, and service area that will take effect on January 1 of the next year. You should receive it by September 30.

When do I receive my ANOC?

Your Medicare Advantage plan is required to send you an ANOC by September 30 each year. This gives you time to review the changes before the Annual Open Enrollment Period (October 15 – December 7).

What should I look for in my ANOC?

You should check for changes in your monthly premium, deductibles, copayments, and annual out-of-pocket maximums. Also, review the provider and pharmacy networks, the formulary (list of covered drugs), and any extra benefits offered by your plan.

What if I don't like the changes in my ANOC?

If you are not satisfied with the changes, you can switch plans during the Medicare Annual Open Enrollment Period. This runs from October 15 to December 7 each year. Any changes you make will become effective on January 1.

What happens if I don't do anything after receiving my ANOC?

If you do not take any action during the Annual Open Enrollment Period, you will automatically stay enrolled in your current Medicare Advantage plan. The new benefits, costs, and terms outlined in your ANOC will take effect on January 1 of the new year.

Does my Part D drug plan also send an ANOC?

Yes, if you have a stand-alone Medicare Part D prescription drug plan, it will also send you an ANOC by September 30. This document will detail any changes to your drug coverage, costs, and formulary for the upcoming year.

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