Submitting Claims | Medicare Billing: CMS-1450 & 837I

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. You can't charge patients for completing or filing a Medicare claim.

Table 1: How to Submit Fee-for-Service & Medicare Advantage Claims
Submitting Fee-for-Service Claims	Submitting Medicare Advantage Claims
For patients enrolled in Original Fee-for-Service (FFS) Medicare, submit claims to your MAC for covered Medicare Part A and Part B services. Contact your MAC if you have questions about the Medicare Program.	For patients enrolled in a Medicare Advantage (MA) plan, submit claims to the patient's MA Plan. To learn more, visit the MA Claims Processing Contacts webpage.

To learn more about Part A, select the button below.