I think it will be very helpful if all doctors mandatorily

I think it will be very helpful if all doctors mandatorily write their medical college name after their UG and PG degree. It will give common public a fair idea about their healer and will definitely protect them from degree purchasers.
P.S.- even if you counter it with reservation, all good clinical branches are taken at very respectable cut offs so these doctors will be far better than those purchasing degrees even after scoring rank above 1 lac.