Medicare Part B Enrollment Forms and Resources at Your FingertipsPosted by Medicare Made Clear
If you didn’t sign up for Medicare Part B during your initial enrollment period, but now you decide you want it, you may have to wait to sign up during other enrollment periods throughout the year. And, depending on your circumstances, you may also have to pay Part B penalties or higher premium payments every month for as long as you have Medicare Part B.
You can calculate your Part B monthly premium with the Medicare Part B calculator.
If you already have Medicare Part A and now you want to sign up for Part B, fill out the Application for Enrollment in Medicare – Part B (CMS 40B) and return it to your local Social Security Office. The instructions are found on the form.
If you do not have Medicare Part A but you want Part A and Part B , you will need to apply for both (Original Medicare) at your local Social Security office at 1-800-772-1213; TTY 1-800-325-0778 (7 a.m. – 7 p.m., local time, Monday – Friday).
If you have questions or need assistance with enrolling, please visit or contact Social Security. 1-800-722-1213; TTY: 1-800-325-0778
For more information, explore MedicareMadeClear.com or contact the Medicare helpline 24 hours a day, seven days a week at 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048.
Should I Get Part B?: Medicare.gov
When am I eligible for Medicare? Medicare Made Clear
When & How to Sign up for Part A & Part B: Medicare.gov