When my 3 sons were little guys our insur. didn't pay for well-child physicals. My Dr. didn't know that, but he said that at age 6 they would only need to come in every other year unless there was a problem. We still only go in every other year unless there is a problem and fortunately we have had very healthy boys except for a broken bone or 2.
I would ask your pediatrician for his honest opinion. We love ours for sure!