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).

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

There are several ways you can obtain the CMS 40B form, including visiting your nearest Social Security office or downloading it from the official Medicare website. You can also call the Social Security …

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...

the Social Security Act, as amended (42 U.S.C. 1395o, 1395s, and 1395ii) for your enrollment in Medicare Part B. Social Security and the Centers for Medicare & Medicaid Services (CMS) need …

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 …

You can electronically complete, upload, and submit select forms to Social Security using the Upload Documents feature. You can also fax or mail any paper form to your local office, unless otherwise …

If you have any comments concerning the accuracy of the time estimate(s) or suggestions for improving this form, please write to: CMS, Attn: PRA Reports Clearance Officer, 7500 Security Boulevard, …

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 …