Maybe 5-6 times per year. I'm PM&R sports/spine so sometimes I'll get some PM&R/neuro stuff that comes in.
Our EMR does a good job tallying up points in each section for the "new" Medicare billing guidelines so I don't have to think too hard about it.
For new patients it usually takes concern for significant underlying neuro condition that has been misdiagnosed/undiagnosed + enough data points to hit 99205.
For the handful of trainwrecks and post-stroke/TBI/SCI patients I have as follow up sometimes I get 99215 based on time - but rare.