Is X ray neccessary for Invisalign consultation？

I visited a top 1% provider in my area for invisalign consultation. He just did some manual checks of my mouth,teeth,bones and jaw and an ITero scan. I asked him about x ray but he said it is unnecessary for my case. I just wonder about whether the exams he did are enough or not. Should I insist on having an x ray before my trearment starts?