Not exactly. The ACA included an expansion of the Medicaid program, almost entirely funded by the federal government, that provides coverage to anyone making below the amounts other posted quoted. However, the Supreme Court ruled that states could opt out of this "expansion" if they want, and several states did. In those states they still provide pre-ACA Medicaid services - children, pregnant women, and a couple other groups are covered - but don't have general coverage for low-income people.