If you are not getting the extra help automatically, it is easy to apply. Just complete Social Security’s Application for Help with Medicare Prescription Drug Plan Costs (SSA-1020). Here’s how:
Apply online at www.socialsecurity.gov;
Call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) to apply over the phone or to request that an application be mailed to you; or
Apply at your local Social Security office.
After you apply, Social Security will review your application and send you a letter to let you know if you qualify for the extra help. Once you qualify, you can select the Medicare prescription drug plan of your choice. If you do not select a plan, the Centers for Medicare & Medicaid Services will do it for you. The sooner you join a plan the sooner you begin receiving benefits.
If you are not eligible for the extra help, you still may be able to enroll in a Medicare prescription drug plan. For information about enrollment periods visit www.medicare.gov or call 1-800-MEDICARE (1-800-633-4227; TTY 1-877-486-2048).
(Source: Social Security Administration: Understanding The Extra Help With Your Medicare Prescription Drug Plan publication 10508, SSA Publication No. 05-10115, January 2011. Additional examples and links from Q1Group LLC)