我(在大学工作)和我的女朋友(警察)都不交SS。但我们都有点数,都想交够40点。今天看了Social Security Statement 才发现:Medicare:To get Medicare benefits at 65, you need 40 work credits. Your record shows you have at least 28credits at this time.But under Retirement, Disability and Family Survivors: I have 0 credits at this time. I don't pay SS tax, but I pay Medicare.