Would a very, very poor person qualify for medicaid in America now?

I apologise for asking yet another question about this subject. I have a relative that is extremely poor that is telling me she cannot get healthcare. I can’t seem to view much on the government websites. Would a very poor person be able to get medicaid that: Does not have any monthly fee? that: Does not require a ‘deductible’ or other costs? A type of doctor visit where you show up and are seen and don’t pay anything? She is complaining of breast pain and I am worried. Thank you.