I just love our pediatrician's office, Centre Pediatrics, in Brookline, MA. This office has several pediatricians and Nurse Practitioners, and we have been pleased with all the ones we have seen. This office offers sick hours from 8:30-9:30am, which is run on a walk in basis. It's perfect if your child has been sick overnight. The office is also well run, and they are rarely running off schedule.