I don't think people rate solely by how pleasant the experience was. The actual results do matter. Did this lead to the problem being solved or being better managed? Patients do care about such things.
There has been a great deal of focus on the delivery of procedures in health care and not so much on actual cures. Compensation is entirely based on procedures. A doctor may be rated on how a procedure was performed, but only a patient can decide if the result was good.
Perhaps a system that quantified a patient's health before and after an experience is a good way to go or over time is the way to go. If a doctor is able to keep his patients healthier, he's a good doctor. But that's pretty difficult to do with "random" ratings. Which is probably why word of mouth is probably more trusted. And doctors haven't figured out how to stop it.
Would it make sense to separate diagnosis from treatment? If the doctor diagnosing problems had incentives for maintaining health and keeping costs low, the doctors performing procedures could focus on delivering services instead of selling them.
I could also see that approach making sense in things like automobile repair.
There has been a great deal of focus on the delivery of procedures in health care and not so much on actual cures. Compensation is entirely based on procedures. A doctor may be rated on how a procedure was performed, but only a patient can decide if the result was good.
Perhaps a system that quantified a patient's health before and after an experience is a good way to go or over time is the way to go. If a doctor is able to keep his patients healthier, he's a good doctor. But that's pretty difficult to do with "random" ratings. Which is probably why word of mouth is probably more trusted. And doctors haven't figured out how to stop it.