Jul 1, 2025 · Use this form if you already have Medicare Part A and want to sign up for Part B (Medical Insurance). If you don't have Part A, don't complete this application —instead, contact Social …

Fill out the Application for Enrollment in Medicare Part B (CMS-40B) (PDF). If you are applying during the Special Enrollment Period, also fill out the Request for Employment Information (CMS-L564) (PDF).

Get the forms you need to sign up for Part B including CMS-40B, CMS-L564, CMS-10797, and CMS-10798.

Review the scenario below to determine if you need to include additional information or forms with your application. If you’re signing up for Part B using a Special Enrollment Period (SEP) because you …

The CMS 40B is a vital form for those who want to enroll in Medicare Part B (Medical Insurance) coverage. There are several ways you can obtain the CMS 40B form, including visiting your nearest …

If you already have Medicare Part A, the next step is to complete the CMS-40B form from the Social Security Administration. This process is particularly important for those turning 65 or...

What Is Medicare Form CMS 40-B? The CMS 40-B Medicare form, formally titled “Application for Enrollment in Medicare Part B,” is used to apply for Medicare Part B coverage. This form allows …

Fill out form CMS-40B. Send the completed form to your local Social Security office by fax or mail.

The purpose of this form is to provide documentation to Social Security that proves that you have been continuously covered by a group health plan based on current employment, with no more than 8 …

Use this form if you already have Medicare Part A and want to sign up for Part B (Medical Insurance). You can use this form to sign up for Part B during these times: If you don’t have Part A, don’t …