What Are Medicare Part B Excess Charges?

Short answer

A Part B excess charge is an amount certain nonparticipating Original Medicare providers can legally bill above the Medicare-approved amount when they do not accept assignment, subject to Medicare’s limiting-charge rules and any stronger state protections.

Coverage

Participating providers cannot impose Part B excess charges because they accept assignment. The issue arises with certain enrolled nonparticipating providers.

Not Automatic

Excess charges are not the same as every balance bill, a noncovered-service charge or an opted-out private-contract fee.

Costs And Ma

Some Medigap plans cover legally billed Part B excess charges. State rules can also matter. Medicare Advantage billing follows plan-network rules instead.

Practical Example

A beneficiary seeing a nonparticipating Original Medicare physician may owe a permitted excess amount if assignment is declined and the charge is legal in that state.

Questions to verify

  • Does the provider accept assignment?
  • Does my state restrict excess charges?
  • Does my Medigap policy cover them?

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