The probably are. Clearly hospital executives and administrators are raking in most of the money, but we can't sit here and pretend that caregivers don't directly benefit from such an arrangement as well.
There's a reason urgent care centers and small clinics pay their doctors less than most of us make, or skip employing doctors at all in favor of nurse practitioners, and their nursing staff makes ~1/3 what they would be earning in a hospital setting. Labor is expensive; specialized labor is even more so.