Do you have paps every year? Was this the first one that came back abnormal with the moderate to severe finding? If this was the first one you've had abnormal, I'd get a second opinion for sure. It wouldn't hurt. From reading up on dysplasia, it seems the procedure to be done is what your doctor has suggested for the moderate to severe range.
I've had two paps come back within a year that have been abnormal with one pap inbetween with no furhter changes. Now it's mild dysplasia again.........
Good luck & report your findings if you don't mind. We'll learn from each other.
Ronnie