!!! Overview[1]
[{$pagename}] ([SSA]) is an [Independent United States Federal Agency] and is responsible for determining [Medicare] eligibility, eligibility for and payment of Extra Help/Low Income Subsidy payments related to Part D [Medicare], and collecting some premium payments for the [Medicare] program.

To qualify for most of these benefits, most workers pay [Social Security] [taxes|Tax] on their earnings; the claimant's benefits are based on the wage earner's contributions. 

Otherwise benefits such as [Supplemental Security Income] ([SSI]) are given based on need.

[{$pagename}] was established by a law codified at 42 [U.S.C.] § 901. The commissioner is an appointment by the [President of the United States of America]

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Department of Health and Human Services|Wikipedia:Department of Health and Human Services|target='_blank'] - based on information obtained 2017-02-12-