The obvious, obvious thing is to simply pay the doctor a fix priced each month wether they diagnose you with something or not. Well above what they would earn elsewhere.
Their incentive then becomes to keep a good relationship with you so you continue to pay them. The best way to do that is to keep you healthy and happy.
These types of blanket rules are useful to ensure a 100% accurate test case. If an error in production costs me $15 Million I don't really care if the engineer wastes a few days to follow a dumb rule.
Also I can employ a $75k - $100k/year engineer and say follow this protocol for testing. If I want someone who can optimize test case 100% of the time with zero mistakes ever then I might have to pay $150k - $200k / year.
Their incentive then becomes to keep a good relationship with you so you continue to pay them. The best way to do that is to keep you healthy and happy.