Medicare provides valuable health coverage, but it isn’t entirely free. Understanding the program’s maximum out-of-pocket costs sheds light on how much you might pay for covered services. This article explains key billing limits across different Medicare Plans to help estimate expenditures.

Understanding Medicare Parts and Coverage

Original Medicare consists of Part A and Part B, covering hospital and medical insurance respectively. Medicare Advantage (Part C) offers similar benefits bundled under private managed care plans. Costs and provider access differ greatly between the two routes.

Maximum Billing Amounts in Original Medicare

Out-of-pocket maximums exist per benefit period for Part A and annually for Part B services:

Part A: Hospital Insurance

Covers inpatient, skilled nursing facility, hospice, and some home health care.

Deductible: $1,600 per benefit period (2023)

Coinsurance: 20% of the Medicare-approved cost for long hospital/SNF stays

Out-of-pocket max: $7,550 per benefit period (2023)

Part B: Medical Insurance

Covers outpatient care, preventive services, mental healthcare, and durable equipment.

Deductible: $233 per year (2023)

Coinsurance: 20% of the Medicare paid or-approved amount after meeting deductible

Out-of-pocket max: $7,550 per year (2023)

So Original Medicare caps your annual hospital coinsurance costs at $7,550. Part B also limits your annual coinsurance payments to $7,550.

Maximum Billing in Medicare Advantage Plans

Private insurers offering Medicare Advantage plans can establish different caps:

  • In-network max – Limits your total copays, deductibles, and coinsurance for in-network services.
  • Combined max – Caps combined costs for both in-network and out-of-network services.
  • Plan specifics – Review details closely as maximums vary significantly between insurers and regions.

Seeking out-of-network care where your plan pays nothing can result in higher overall costs.

Additional Considerations

Other billing issues to note include:

Balance Billing

When providers bill you for the difference between their charges and Medicare’s approved amount. Certain rules prohibit balance billing in Original Medicare.

Surprise Billing

Receiving unexpectedly high out-of-network bills for care you assumed was in-network. Requirements protect Medicare patients from certain surprise bills.

Resources for Further Information

Learning more about Medicare billing details protects against unexpected costs:


Medicare out-of-pocket maximums differ depending on if you have Original Medicare or a private Medicare Advantage plan. Understanding the potential scope of your cost liability can prevent billing shocks down the road.

We’re Here to Help

You do not have to spend hours reading articles on the internet to get answers to your Medicare questions. Give the licensed insurance agents at Glidden Group a Call at (208) 962-0077. You will get the answers you seek in a matter of minutes, with no pressure and no sales pitch. We are truly here to help.


What is Medicare Summary Notice (MSN) and who receives it?

Medicare Summary Notice (MSN) is a statement that people with original Medicare receive through the mail every three months. It provides a record of the health care services and medical supplies that providers and suppliers billed to Medicare on your behalf during that period.

How can I access my MSN online?

You can access your MSN online by logging into your secure Medicare account. If you don’t have an account, you can create one easily. Once you are logged in, you can view your current and past MSNs.

How am I supposed to interpret the amount billed on my MSN?

The MSN lists the services or supplies that providers and suppliers billed to Medicare, the approved amount, the amount Medicare paid, and the maximum amount you may owe. It’s important to note that the MSN is not a bill. Its purpose is to provide a summary and comparison of services rendered and amounts billed.

What if I disagree with the claim made on my MSN?

If you disagree with the decision made on a claim found on your MSN, you have the right to file an appeal. Detailed instructions for appeals are on the last page of the MSN.

What is a potential sign of fraud on my MSNs?

Any claim made for services or medical supplies that you did not receive could be a sign of fraud. If you notice a discrepancy, follow the instructions on your MSN or contact Medicare directly to report it.

How should I compare my MSN with my EOBs?

Comparing your MSN with your Explanation of Benefits (EOBs) can help you ensure the accuracy of the claims. Each service listed on your MSN should also be listed on your EOB. Discrepancies can be a sign of error or fraud, and should be investigated.

What should I do if I made a payment, but it’s not reflected on my MSN?

If you’ve paid a bill from a provider or supplier, but the payment isn’t reflected on your MSN, contact your health care provider. They may need to resubmit the claim to Medicare.

Do MSNs have any role come tax time?

MSNs may be useful during tax time as a record of medical expenses. While your MSN isn’t a bill, it does detail the health care services and supplies billed to Medicare which can be helpful when filing taxes.

What should I do when I receive an MSN?

When you receive an MSN, compare it with your receipts and records to make sure you received the billed services or supplies, and that the amounts match. If you notice an error, follow the instructions on your MSN to file an appeal.

How can I obtain a paper copy of my MSN if I access my MSN online?

You can print a paper copy of your MSN directly from your Medicare account. You can also request a paper copy to be sent to you by contacting Medicare.