H.P.
If you land in the Guilford area, Branford/North Branford Pediatrics is a great group. There are probably 6-7 Drs in the group, all of which we have seen at one point or another for sick visits. Cannot say a bad thing about the group. Great docs, great nurses, kind front office staff. My kids see Dawn Torres for their annual well visits.
I also would agree with Dr Jose Calderon for Pediatric allergist. Wonderful man, gentle, heavy accent. Makes some not so fun appointments bearable. For a Pediatric dentist, there is one in Madison that my girlfriend takes her kids too. Not sure of the name but could get it for you. Good luck!