I guess that depends on your age. If you are 65 then you can get medicaid. It can also depend on your income level. If you are low income then you can often get lower cost insurance through the low income supplemental plans in the state in which you are a resident.
But there are so many variations to these things that you do need to consult with a professional. Try starting at your local senior center for advice. They often have contacts with individuals who can counsel you through the process of what is available that meets your specific needs. Those persons are not insurance agents, they are just hand holding advisers who know the ropes. Every state has its own programs that help to supplement the medicare programs.