Medicare disenrollment warning notice

What is it?

A notice sent to you on pink paper if Social Security or the Railroad Retirement Board (RRB) need more information about your U.S. citizenship or immigration status to confirm your eligibility for Medicare benefits. 

When should I get it?

December 2026

Who sends it?

Medicare

What should I do if I get this notice?

Follow the instructions in the notice. It tells you to look for a letter from Social Security or the Railroad Retirement Board (RRB) with instructions on how to submit documents that confirm your U.S. citizenship or eligible immigration status. If you don’t confirm your eligibility status, your Medicare coverage will end February 1, 2027.

Download a sample

• Medicare Disenrollment Warning Notice
• RRB Medicare Disenrollment Warning Notice (if you get benefits from the Railroad Retirement Board)

Publication, product, or other number

CMS Product No. 12238-RRB – PINK

CMS Product No. 12238 – PINK

Unofficial name

N/A