Read my earlier post & the data in it(aka the US rank in health index).Healthcare is available to Public in US has the most sophisticated healthcare in the world. and they have very stringent laws for any healthcare violations.
First each & every individual must have a valid Health Insurance (cannot skip that).
Cost of healthcare is high. per visit to clinical visit is $100 (7.6k INR). So, people opt for healthcare insurance there. Many Indians flyback to India as they can't afford the charges of treatment in US.
Healthcare providers, payors have to follow the rules otherwise they are charged with hefty fines worth millions. You won't find a jholachaap doctors in US.