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And when you join up as covered by Medicare (usually around age 65), you get a second 9 character ID on a card that looks like a Social Security card with the
by lucas_membrane 4y ago
And when you join up as covered by Medicare (usually around age 65), you get a second 9 character ID on a card that looks like a Social Security card with the hyphens in the same positions, said ID probably containing both digits and letters (not case sensitive AFAIK).