To file a Medicare claim yourself, you will need to print out and complete the form called Patient’s Request for Medical Payment, Form CMS 1490S. The form is available for download on cms.hhs.gov in the CMS Forms section. Once there, you will need to do three things: (1) print out the 1490S form; (2) select and print out the applicable instructions; and (3) if you have any questions contact Medicare at 1-800-medicare.