The easiest and quickest way to apply for retirement , spouse 's , ex - spouse 's , or Medicare benefits is to apply online
was your pension plan terminated?
yes
ok great! there are websites you can go to
What documents do I need?
Sure, no problem.  We may ask you to provide certain documents to show that you are eligible and help us decide how much your benefits should be
what if  you are not getting Social Security and you are not ready to retire?
you should still use our online retirement benefit application to sign up for just Medicare three months before your 65th birthday
What is the best site to use?
Benefit Eligibility Screening Tool BEST to help identify other Social Security programs for which you may be eligible
what do I need to show when I apply?