There is a misconception that health care is a commodity that responds to free market competition with lower costs. If you need to purchase a refrigerator, you go online or to a store that has several brands and models all lined up and choose the one you want and can afford.
However, if you suddenly have sharp pain in your left arm, a crushing chest pain, can't breathe, feel dizzy and faint, do you: A) Call 911 and ask for the paramedics or B) Call the paramedics and ask how much it will cost to save your life and get you to the cheapest good hospital? Most people will do A.
Health care is not a precise cost service, like replacing a leaky water heater. Humans are not machines.