M.W.
Hi, I am pregnant with twins and I asked my high-risk OB for a pediatrican recommendation (I live in Arlington) and he suggested Dr. Michael Yogman at 575 Mt Auburn St, Cambridge. ###-###-####. He worked for 15 years at Children's Hospital and knows all the specialists there. Dr. Yogman has a special interest in Development Neuroscience although I know people who see him for just regular pediatrician. I spent quite a bit of time talking with him just this morning as I would be switching my soon to be 3-year old as well as bringing the twins. He has rights at just about every hospital in the area (BWH, Childrens, Mt. A, Cambridge Hospital, Somerville Hospital, maybe a few more) He is very personable (based on my calling the receptionist and he has called me back every morning for the past 3 days and he's not even my pediatrician)
good luck