They negotiate prices based on the size of the pool. This is why if you are a small business the rates you will get will be worse than if you were a large enterprise.
With socialized healthcare, the pool is the entire citizenry, which is what gives the government substantial leverage when negotiating.
That's not to say the American system is good, but I can't stand all this talk about how socialized healthcare is so great. It isn't. A lot of what people are calling "socialized" systems are actually private systems with a compulsion to purchase insurance, for example Switzerland, Netherlands, Australia. Even Germany technically has a dual system (public and private) but only the top earners are allowed to go private.
Incorrect. In the public system, the fees are negotiated between the GKV Spitzenverband (federal association of public health insurers) and the KBV (federal association of public doctors).
Germany still is in the top group regarding quality of care indicators.
As a Canadian, I will say there are a lot of people dissatisfied with the Canadian system. Likely to a lesser degree than in the US, but the system is far from perfect.
What happens in socialized systems is that the government does price fixing, which makes healthcare worse and it limits supply. Try getting a specialist appointment with socialized healthcare in Germany, it can take several months. Get private insurance (or pay out of pocket) and suddenly appointments become available. Doctors are leaving the country in droves.
Some of the hospitals in Germany are in an abysmal state, MRSA rates are extremely high:
https://correctiv.org/en/latest-stories/super-bugs/2017/01/1...