Chantry, I always struggle with this one....my onc does not do routine tests. I go to a major comprehensive cancer center, one of the best around, so by reputation, it helps me to feel comfortable with their approach. In my opinion, that is the most important....feeling comfortable with the team. Some believe that catching mets early, before you are symptomatic, won't change the course of treatment or the disease's progression. My onc does routine blood work when I see him and that is it, unless I have other issues to evaluate. Last year, when I had pain in the sternum, he did not waste time to send me for a bone scan and chest CT.
When you are ready for the routine visits, find out what the plan is. If you are not satisfied, shop around for a second or third opinion. It is your right to be satisfied with your medical team.