Comment by theogravity

Psychiatrists / neurologists do the diagnosis. I'm not sure about a financial incentive, or at least in Kaiser's case. It would mean they'd have to cover that person's therapy possibly indefinitely which isn't much of an incentive.

They're more incentivized to not diagnose with a condition.

I was considered not bi-polar and do not have ADHD by a psychiatrist and thus I couldn't get therapy covered.