San Francisco General Hospital, a public
hospital systematically
gouges patients that come to the emergency room. It refuses to
cooperate with private insurance companies, so whatever charges they
don't cover bankrupt the patient.
The hospital was recently named after Zuckerberg, but he is not in
charge of it, so I don't expect that he is personally responsible for
this practice. However, the grasping spirit demonstrated by renaming
a public hospital after a billionaire donor could be related to it.
With Medicare for All, hospitals would not have any way to do this.
They would get paid by Medicare, and they would get the amount
Medicare pays.