I’m not sure what Rush and the caller were going on about in that link.
Canada has UHC, as opposed to the compromise abortion the US is arguing over. Nothing prevents a Canadian doctor from doing roughly what the caller described, and Rush said could not be done.
In Canada, a doctor is either in UHC or he and his patients get no reimbursement for his work from UHC. (YMMV, it’s a provincial thing with Federal guidelines) Good luck making a living if you’re out.
If you are in the Medicare system, you can only charge what the provincial fee structure says for a procedure or consultation. No extra billing.
If a procedure is not approved to be paid for by the provincial system (or the patient is not covered IIRC) then you have the same free market system - the doctor can charge whatever he wants.
Generally, this is about cosmetic procedures. Some basic stuff - accident reconstruction, cleft palate, and extreme problems are covered (i.e. tummy tuck if you’ve lost over 100lb.) Vanity and optional stuff is covered.
So in the caller’s scenario - no, the physician and patient cannot simply decide in the moments before anaesthetic - “sorry, we’re doing A instead of B”; I’m not sure doing medicine off the cuff is a good idea anyway. The physician can’t simply “abscond” with the government-paid nurses and OR facilities to do a free-lance for-profit operation. (I suspect the same held true in Asia, but nobody reported them and it happened all the tim, and I bet the nurses and hospital administrators got a cut of the proceedse.)
However, the paitient and doctor could do the same consultations, prepare and arrange a private clinic pocedure, and do it.
Also, I suspect there are not too many “better procedures” in Canada that are not covered.
My wife had a tummy tuck from a surgeon who also does (UHC covered) reconstructive surgery. It was done in a private clinic, and we took her home a few hours later, and it cost IIRC about $3000.
The big difference is that in less rich third world or recently first world countries, medicine has not reached the point where the better off labourers cannot afford it. UHC became a necessity (yes!) when it got to the point where a few days stay in hospital, or an operation, could bankrupt a family. If a childbirthor fixing a broken bone cost a couple of hundred dollars, if a heart operation (once in a lifetime) cost a few thousand, health care would not be the issue it is today.
There was a joke a decade or more ago that it would be cheaper to hire round the clock nurses and stay in a five star across from the hospital, than to stay in a hospital while recovering from an operation.