The statement
Your Medicare Summary Notice: not a bill, and the start of your appeal clock
Short answer: the Medicare Summary Notice is the quarterly statement Original Medicare mails showing every claim processed for you: what the provider billed, what Medicare approved, what Medicare paid, and the maximum you may owe. It is not a bill and you should not pay from it. Two things make it worth reading rather than filing: it is the single best tool for catching billing fraud aimed at your Medicare number, and the date on it starts the 120-day clock for appealing anything denied.
Key takeaways
- The notice arrives quarterly, only when claims were processed, and it is a statement rather than a bill.
- Compare it against providers’ bills before paying anything; the "maximum you may be billed" column is the number that matters.
- Denied items are marked, and you generally have 120 days from the notice date to file an appeal.
- Services you do not recognize are the clearest early sign of Medicare fraud using your number.
- Medicare Advantage members get an Explanation of Benefits from the plan instead, which works similarly.
What it is, and what it is not
If you have Original Medicare, you receive a Medicare Summary Notice every three months in which claims were processed, covering both Part A and Part B. It lists each service, the date, the provider, and four numbers that matter. It is not a bill: providers bill you separately, and the notice is how you check whether their bill is correct. You can also see the same information sooner in your account at Medicare.gov rather than waiting for the mail, which is useful when a claim is in dispute.
How to read it, in four columns
| Column | What it means |
|---|---|
| Amount provider charged | The sticker price, which is mostly irrelevant to what you owe |
| Medicare-approved amount | The negotiated rate, and the real basis for everything that follows |
| Amount Medicare paid | Typically 80% of the approved amount for Part B services |
| Maximum you may be billed | What you can actually be charged; if a provider bills more, question it |
The notice also flags whether a service was approved or denied and gives a reason code for denials, with an explanation elsewhere in the document.
The fourth column is the one to use. If a provider’s bill exceeds the maximum you may be billed, something is wrong: either a coding error, or the provider does not accept assignment, which is explained in the assignment article. For a hospital stay, check it against the Part A ladder to confirm the deductible was applied once rather than twice.
Spotting fraud, which is the underrated reason to read it
Medicare fraud usually shows up here first: equipment you never received, a visit on a date you were elsewhere, a provider you have never heard of, the same service billed twice, or tests nobody ordered. Read the list of services and ask one question of each line: did this happen to me? If something looks wrong, call the provider first, since honest billing errors are common. If the answer is unsatisfying, report it to 1-800-MEDICARE or your state’s Senior Medicare Patrol, which exists specifically for this. Checking quarterly is the single most effective defense a beneficiary has, more effective than anything you can do to prevent your number being misused in the first place. The scam field guide covers how numbers get harvested.
The 120-day clock
If Medicare denied a service you believe should be covered, the notice is your starting point and your deadline. You generally have 120 days from the date on the notice to file a redetermination, the first of five appeal levels. The practical steps: circle the denied item on the notice, write why you believe it should be covered, attach anything supporting it from your doctor, and follow the filing instructions printed on the notice itself. Appeals succeed often enough that it is worth doing, and free help is available through SHIP counselors and the Medicare Rights Center. The five levels and their deadlines are laid out separately.
If you are on Medicare Advantage
You will not get a Medicare Summary Notice. Your plan sends an Explanation of Benefits instead, usually monthly when there is activity, showing similar information in the plan’s own format along with where you stand against your out-of-pocket maximum. Read it the same way, with one addition: check claims denied for network or authorization reasons, since those are the most commonly reversed on appeal under the prior authorization rules. Part D plans send their own explanation showing which coverage phase you are in and how close you are to the annual out-of-pocket cap.
One filing habit worth adopting: keep these for at least a year, alongside receipts for anything you paid. If a billing dispute or an appeal arises, having the paper record in one place turns a difficult phone call into an easy one, and it is exactly the sort of thing a family member helping out will be grateful for later.
Questions people also ask
Is the Medicare Summary Notice a bill?
How often does Medicare send a summary notice?
How long do I have to appeal a Medicare denial?
How do I spot Medicare fraud on my statement?
Do Medicare Advantage members get a summary notice?
Sources for this article
- Medicare.govMedicare Summary Notice: what the notice contains and how to read it.
- Medicare.govClaims and appeals: appeal levels, deadlines, and how to file.
- Medicare.govMedicare.gov: viewing claims online and reporting suspected fraud.
Figures checked against these sources on September 30, 2026. We update within days when CMS publishes new amounts.
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