Get Form 564

You can complete the Part B SEP online or you can mail your completed CMS 40B, Application for Enrollment in Medicare - Part B (Medical Insurance) and CMS L564 - Request for Employment Information to your local Social Security office.

The Centers for Medicare & Medicaid Services (CMS) is a Federal agency within the U.S. Department of Health and Human Services. Many CMS program related forms are available in Portable Document Format (pdf).

If you have comments concerning the accuracy of the time estimate(s) or suggestions for improving this form, please write to: CMS, 7500 Security Boulevard, Attn: PRA Reports Clearance Officer, Mail Stop C4-26-05, Baltimore, MD 21244-1850.

This form is used for proof of group health care coverage based on current employment. This information is needed to process your Medicare enrollment application. The employer that provides the group health plan coverage completes the information about your health care coverage and dates of employment.

If you did not enroll for Part B during your initial enrollment period, you may qualify for a Special Enrollment Period (SEP) to sign up for Part B (and/or Part A) anytime as long as you or a spouse is working and you're covered by a group health plan through that employment.

Form CMS-L564 is an employment information form from the Social Security Administration (SSA). It's used in conjunction with Form CMS-40B when you apply for Medicare part B during a special enrollment period (SEP). One portion is completed by you and the other is completed by your employer or your spouse's employer.