We had our son at newton Wellesley as well. Our Pediatrician is associated with them as well. They are located in Natick, but worth the slightly longer drive from Waltham. My son recently got terribly sick on a Friday and they got us right in to see them. They sent us to the hospital and we stayed there until Sunday. They called us several times throughout the time we were in the hospital and were in constant contact with the hospital doctors and nurses. They came by the hospital each day to evaluate our son as well.
They also go out to your home for your child's first doctor appointment the day after you are released after birth - which is nice not to have to take out such a new child.
They are Dr. McKenzie and Dr. Diskin. They are at 218 N. Main St in Natick, on 27 across from the Stop and Shop and Building 19. Their number is ###-###-####.