I have experienced the flip of this: a less experienced MD specialist not recognizing a lab error, and wanting to act on it, which was recognized (correctly) as an error by PA primary care and confirmed in retesting. In this case the MD was significantly younger/less total years of experience and maybe that had to do with it?

PA experience isn't the equivalent of training as a resident (and I think we should be training more MDs) but the MD isn't always right either.