The normal practice is private hospital will do as many unnecessary diagnostics as possible like MRI, CT Scan, Dexa Scan, X-Ray, etc. I guess any doctor that can extract the most money from insurance will get more bonus.

On the insurance side, any person that is able to minimize outflow of money will get special bonus.

Got doctor in private hospital that reject patients who will claim from insurance and only entertain patience that will pay with own money