I appreciate all your replies. Ds has never had a regular physical (we stopped the whole well-child visits when he was much younger, with our doc's approval). We know our doctor socially, as well as professionally, so he's seen ds outside the office. Plus, ds is usually in for something ever couple of years or so with something insignificant. Doc even makes house calls, as he did for ds when he had mumps, many years ago!
We don't do any immunizations, so our doc will sign the exemption with no worries (he's not a vaccine-pusher, by any means!).
The ports physical will be good for 24 months, so no more physicals after this year, unless he decides to be involved in some sport when he is a senior.
Again, thanks for your responses!!