MEDICAID for poor, MEDICARE for seniors，ObamaCare for everyone e

MEDICAID for people making < 100% federal poverty wages, in medicaid expansion state, < 133% federal poverty wages.

MEDICARE for people older than 65.  

IMMIGRANT living less than five years in US cannot have MEDICAID nor MEDICARE, they can buy ObamaCare, and they might get subsidies if income is between 100%-400% federal poverty wages