Employer Attestation Form (CMS-L564)

This is a very important form if you're applying for Medicare during a Special Enrollment Period.

In order to apply for Medicare in a Special Enrollment Period, you must have or had group health plan coverage within the last 8 months through your or your spouse’s current employment. People with disabilities must have large group health plan coverage based on your, your spouse’s, or a family member’s current employment.

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.

Once you get this form back from your employer, you must submit it along with your Part B application.