If you have Original Medicare, a document called the Medicare Summary Notice shows up in your mailbox every few months. It lists the care you received and what Medicare paid toward it.
A lot of people glance at it, see it isn't a bill, and toss it in a drawer. That is a missed chance, since this notice is one of the easiest ways to catch a billing mistake before it becomes a bigger problem.
What This Notice Actually Is
The Medicare Summary Notice, often shortened to MSN, is not a bill. You do not owe the amount shown on it, and you should not pay it directly.
If you had any Medicare covered services, you generally get one about every 4 months. It lists each service, which provider billed for it, and how much Medicare paid.
You can also view your notices anytime through your account on Medicare.gov, which is often faster than waiting for the mail. Setting up that online account before you need it saves you a step later.
The Three Things to Check Every Time
When your notice arrives, take a few minutes to compare it against your own memory of what happened. Three details matter most.
- The dates of service. Do they match when you actually saw the provider?
- The provider's name. Is it someone you actually visited?
- The service listed. Is it something you actually received?
This does not need to take long. Most notices are short, and once you know what to look for, checking one becomes a five minute habit rather than a chore.
What a Billing Error Looks Like
A common error is a duplicate charge, where the same visit or test appears twice. Another is a service listed that you never received at all, sometimes for a date you were not even at that office.
Wrong dates are common too, especially if you saw more than one provider around the same time. A test billed at a higher level of service than what was actually done is another pattern worth watching for.
None of these automatically mean fraud. Billing systems make honest mistakes fairly often, and offices with a lot of patients sometimes mix up paperwork.
What to Do If Something Looks Off
Start with the provider's office directly. Call their billing department, point to the specific charge, and ask them to explain or correct it.
Keep a short note of who you spoke with and when, in case you need to follow up again. Offices sometimes need a second call to actually make the correction.
If that does not resolve it, call 1-800-MEDICARE and have your notice in front of you. They can look into the charge from Medicare's side.
If You Suspect Fraud, Not Just a Mistake
A mistake is a wrong date or a duplicate entry that gets fixed with one phone call. Fraud looks different, like repeated charges for services you never received from a provider you have never heard of, month after month.
If you suspect fraud rather than an honest error, the Senior Medicare Patrol, known as SMP, is the group set up to look into it. They are used to sorting out exactly this kind of situation and can tell you what to do next.
If You're in a Medicare Advantage Plan
Everything above applies to people with Original Medicare. If you are enrolled in a Medicare Advantage plan instead, you will get an Explanation of Benefits from your plan rather than a Medicare Summary Notice.
The same basic habit applies either way. Check the dates, the provider, and the service every time one arrives, and call your plan directly if something does not look right.
Either document is worth five minutes of your time. It is one of the few pieces of mail that can actually save you money just for reading it.
