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Medicare Billing: 837I & Form CMS-1450

Submitting Claims

Medicare defines a claim as a request for payment of benefits or services a patient gets. Medicare requires providers that furnish services that may be covered to submit claims. Medicare prohibits charging patients for completing or filing a Medicare claim.

Table 1: How to submit Fee-for-Service & Medicare Advantage claims
Submitting Fee-for-Service ClaimsSubmitting Medicare Advantage Claims
For patients enrolled in Original FFS Medicare, providers submit claims for services to the appropriate MAC for covered Medicare Part A and Part B services. Find your MAC's website if you have any questions about the Medicare Program.For patients enrolled in a Medicare Advantage (MA) plan, providers should submit claims to the patient's MA Plan. Visit the MA Claims Processing Contacts webpage for a list of those contacts.

To learn more about Medicare Part A, click the button below.