Holy propaganda Batman!
So now it's not just single payer, you want full government takeover of medicine in the US?
I've known the problem is price gouging, insurance or no insurance so I was looking into how the different systems worked on a very surface level and it seems like healthcare is a bit like a power monopoly. You need the government to do the negotiating on your behalf to get a fair price.
Medicare hands down gets better prices than private insurance companies do. There is alot of friction between insurance companies settling with hospitals AFAIK (suing back and forth lawyer fees, etc). It seems like its local monopolies, the only XYZ specialty for miles is going to run you $100,000's no matter the actual cost of the procedure and surgeon so it varies by region.
Doctors drop medicare because of the lower payments, but by taking medicare are guaranteed a steady stream of patients. Hospitals are required by law to treat anyone entering the ER and offset the price by gouging on other services and in the end who knows who is really making out. The government should probably negotiate the price on the peoples behalf honestly, medicare style.
If everyone entering the ER were covered it would remove the need to gouge in the first place.