A.B.
I went to Quincy Pediatrics as a child myself but my girls go to Crown Colony Pediatrics in Quincy (we live in Braintree). I remember Dr. Irons and now his son is there practicing as well. I know we were transferred from the practice when I was a pre-teen because my mother was sick of waiting and waiting to see the doctors. Not sure if it's the same now or not as it's 20 years later.
Crown Colony Pediatrics have been great. One of the doctors actually saw my daughter within minutes of her being born. They are all women doctors at the moment, not sure if that makes a difference to you or not. We love Dr. Brzozowska, Dr. Angus and Dr. Wright at Crown Colony. The fourth doctor is very knowledgable (Dr. Blackman) but she's not my favorite. Also, anytime I've ever called after-hours, I've gotten a return call within 15 minutes which I find amazing.
Good luck in your pediatrician search!