With universal health care doctors no longer need that massive back office to process payments. Not only don't they have to deal with multiple insurance companies (each with their own accounting systems) they don't have to chase after patients for payment. They just send the bills directly to the universal insurer (and they don't have to argue with insurance company claims people as to what is and is not covered).
That's a substantial reduction in the doctor's overhead.
Agreed.
Universal healthcare or single payer is a viable option.