And again (but not in all cases of course) Did you get it this time?
In any case, the health care exchanges are simply the same insurers who insure now. The only difference is that the exchanges create a pool that allow the insurers to spread the risk and hence charge rates that are similar to employer plans.
So it would probably be impossible for a doctor to even tell that the patient is in an exchange as opposed to some other plan, and since the payments would be the same, why would they care.
The OP is arguably the most idiotic article I've seen at DP.
Most insurance companies piggyback on Medicare charges so, except for Cadillac Plans, most doctors don't get paid more whether their patients are Medicare patience or in a typical plan. They complain bitterly about this every time Medicare comes out with a tighter pricing schedule, because the insurance companies follow shortly thereafter and negotiate similar prices.
The medical market of the past 25 years is unsustainable and will be swept away. Indeed, more and more hospitals are forming sister organizations to hire doctors as employees (hospitals are barred from directly hiring doctors), so the number of doctors who will be in private practice is expected to plummet. In the future most doctors will likely be employees, not private practitioners. Indeed, I suspect that this trend is somehow behind the garbled reporting of the OP.