Where to mail medicare form 1490S?

To mail Medicare Form 1490S, you should send it to the address specified on the form itself. Typically, this is the address for your local Medicare Administrative Contractor (MAC) or the specific address designated for processing the form. If you're unsure, you can also check the official Medicare website for the most current mailing address or contact Medicare customer service for assistance. Always ensure that you keep a copy of the form for your records.