Scribe/Nurse relationship advise

[Over.it.LPN]

I've been in a pickle with a new scribe. They have started to take on a clinical role and doing procedures. Our doctor has seen to them being trained and signed off on it. Since then they have "gotten a big head". Their attitude has gotten really bad. Now they are acting as if they are in charge of our doctor's clinic. I'm constantly questioned if something I'm doing is wrong. I'm being treated as if I'm stupid. I don't pull the nurse card but last I checked I'm a competent nurse. I'd like to handle this with them personally and professionally. Any advise?