Understanding the Limiting Charge: A Comprehensive Guide to Your Medicare Benefits

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The limiting charge refers to the maximum amount that a non-participating healthcare provider can bill you for a covered service under Medicare. Medicare sets the limiting charge at 15% above the Medicare-approved amount for a particular service. This means that if a healthcare provider does not accept Medicare assignment, they can charge up to 115% of the Medicare-approved amount, with the excess beyond the approved amount being your responsibility to pay.

Medicare Assignment: Participating vs. Non-Participating Providers

To better understand the limiting charge, it’s crucial to differentiate between participating and non-participating providers. Participating providers agree to accept the Medicare-approved amount as full payment for their services. They are required to submit claims to Medicare directly and accept the Medicare reimbursement as payment in full, except for any applicable deductible and coinsurance.

On the other hand, non-participating providers have the flexibility to accept or not accept Medicare assignment on a case-by-case basis. When a non-participating provider does not accept assignment, they can bill up to the limiting charge, leaving you responsible for the additional costs. It’s essential to note that even non-participating providers who accept assignment for certain services can still choose not to accept assignment for others, leading to potential variations in billing practices.

Impact on Your Medicare Costs

Understanding the implications of the limiting charge is vital for managing your healthcare expenses effectively. If you receive care from a non-participating provider who accepts assignment, you will be responsible for the standard 20% coinsurance after meeting your deductible. However, if the provider does not accept assignment, they can charge you up to the limiting charge, resulting in a higher out-of-pocket expense.

It’s important to review the Medicare Summary Notice (MSN) you receive after each healthcare service to understand whether your provider accepted assignment and billed you within the Medicare-approved amount. This will help you track your expenses accurately and identify any potential overcharges or discrepancies.

Strategies to Minimize Costs

While the limiting charge can increase your healthcare costs when you receive care from non-participating providers, there are several strategies you can employ to mitigate these expenses:

  1. Research and Choose Participating Providers: Prioritize selecting healthcare providers who participate in the Medicare program and accept assignment. This will help ensure that you are not subjected to the limiting charge and will keep your out-of-pocket costs in line with the Medicare-approved amount.
  2. Discuss Fees in Advance: Before scheduling any medical procedure or service, have open and transparent conversations with your healthcare provider regarding their fees and whether they accept Medicare assignment. Understanding their billing practices in advance can prevent unexpected financial burdens.
  3. Consider Medicare Advantage Plans: Medicare Advantage plans, also known as Part C, offer an alternative to Original Medicare and often provide more predictable costs. These plans may have networks of participating providers and can help minimize your exposure to the limiting charge.
  4. Appeal Potential Overcharges: If you believe you have been charged above the limiting charge without valid justification, you have the right to appeal the charges. Contact your healthcare provider or Medicare for guidance on the appeals process.


Hope this comprehensive guide has provided you with a clear understanding of the limiting charge and its implications for your Medicare benefits. By being well-informed about this concept, you can make informed decisions when choosing healthcare providers and effectively manage your healthcare expenses. Remember to review your Medicare Summary Notice diligently and take proactive steps to minimize costs whenever possible.


  • The limiting charge is the maximum amount non-participating healthcare providers can bill Medicare beneficiaries.
  • Participating providers accept the Medicare-approved amount, while non-participating providers can bill up to 115% of the Medicare-approved amount.
  • The limiting charge can increase out-of-pocket costs for Medicare beneficiaries when they receive care from non-participating providers.
  • Strategies to minimize costs include selecting participating providers, discussing fees in advance, considering Medicare Advantage plans, and appealing potential overcharges.

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