How to Read a Medicare Summary Notice After a Rehab Stay
A Medicare Summary Notice (MSN) is not a bill.
People with Original Medicare receive MSNs summarizing Part A and Part B claims. After a skilled nursing stay, the Part A MSN can help the family compare what the facility billed, what Medicare approved, and the maximum amount the beneficiary may owe.
Read the claim before paying an unexpected facility balance.
Check the dates first
Match the MSN service dates to:
- SNF admission;
- hospital readmission;
- SNF discharge;
- benefit-period day count; and
- any period the resident was not receiving covered SNF care.
If the dates do not match, call the facility/Medicare.
“Amount charged” is not the same as what you owe
The MSN can show:
- provider/facility billed amount;
- Medicare-approved amount;
- amount Medicare paid; and
- maximum amount you may be billed.
Do not pay the full provider charge merely because it is the largest number on the page.
Check whether the claim was approved
If a line is denied or not covered, read the associated notes.
The note may explain:
- coverage rule;
- missing information;
- benefit exhaustion;
- service not covered; or
- another reason.
Compare the MSN to the facility statement
Create a side-by-side review:
| Item | MSN | Facility bill |
|---|---|---|
| Service dates | ||
| Medicare paid | ||
| Coinsurance/liability | ||
| Medigap/other payer | ||
| Facility credit | ||
| Remaining balance |
A facility statement may arrive before all secondary insurance payments are posted.
Review appeal information
The MSN contains information about appeal rights and deadlines for Original Medicare claim decisions.
Do not confuse an MSN claim appeal with a fast appeal of a SNF service-termination notice; those are different processes.
Use the Medicare account for current claim status
Medicare says processed Part A/B claims are often visible in the secure Medicare account before the paper MSN arrives.
Use the official account or 1-800-MEDICARE when reconciling an unclear claim.
MSN rehab worksheet
Claim period: ____________________
Facility: ____________________
Service dates: ____________________
Approved?: ____________________
Amount charged: ____________________
Medicare-approved amount: ____________________
Medicare paid: ____________________
Maximum may be billed: ____________________
Secondary insurance pending: ____________________
Appeal note/deadline: ____________________
Frequently asked questions
Is the MSN a bill?
No.
Should I pay the “amount charged”?
No. Compare the “maximum you may be billed” and actual provider bill/other insurance.
What if the facility bill is higher than the MSN says I may owe?
Call the facility and Medicare/plan to reconcile the difference before paying.
The practical goal
Use the MSN to answer:
What service was billed, did Medicare approve it, what did Medicare pay, and what is the maximum liability shown for the beneficiary?
Related NHP guides
Primary sources checked
- Medicare — Medicare Summary Notice
- Medicare — Sample Part A Medicare Summary Notice
- Medicare — Checking claim status
*Editorial/source review: October 15, 2026. General education only. Notice rights, network status, prior authorization, billing liability, and appeal deadlines must be confirmed from the beneficiary’s actual plan and documents.*
