I moved to Westfield last year and started at Westfield Pediatrics (like many others in town). The office itself is okay (how it is run, etc) but I REALLY like Dr. Matthew Kowalczyk there. We kind of fell into him because the doctor my daughter had seen there was unavailable when I had to bring my son in, and I'm so happy we did because I've just been so happy with how easy he is to deal with.
I don't know if I'll change the doctor for my daughter just because she may want a female doctor as she gets older, but Dr. Kowalczyk is definitely the one for my son!