I'm sure the Neurology PA who's been working for 20 years has little to impart on an intern or junior resident 🙄
Medicine is just knowledge. If you take the time to learn the material, read the current literature, and have extensive experience, it really doesn't matter what your formal degree is.
A wise person once said "there's nothing a smart person can't learn." Presuming that learning stops just because you're a PA is just dumb. To fail to take advantage of someone's experience and potentially superior knowledge is equally dumb. I know where the buck stops and I don't hesitate to make the tough decision but I'll be damned if I'm going to limit useful information from someone on the basis of their degree.