Wouldn't the "Uber" business model mean they are rated? Bad doctors would not get 5 stars and then get dropped. Vs the current state of affairs where the doctor

Wouldn't the "Uber" business model mean they are rated? Bad doctors would not get 5 stars and then get dropped. Vs the current state of affairs where the doctors aren't rated at all. If people were going to travel for medical tourism anywhere wouldn't you want to go to a doctor that has been rated 5 stars vs one that hasn't? Bearing in mind they all have qualifications.