iTero informed us any registered GDC dental professional may take scans (we thought perhaps our receptionists could learn as it is basically taking a load of tiny photos which are stitched together into a 3D image but no, this is not allowed).
Training: provided by the manufacturer. Not as easy as you might think. I would say practice plenty of scans on each other before you start on patients.
Insurance... good question!!! Haven't checked this out I as assumed would be covered by my existing cover.