M.C.
We see Christine Gates at Intermed Family in South Portland (near the mall). She's our family doctor, too, and we've never had a problem getting in the same day if we need to, either with her or one of her partners. They also have a good weekend clinic. Only problem is that they have the world's worst phone system -- sometimes you have to wait on hold a while to schedule appointments.
Another good thing: she is ok with taking it slowly on meds; we were in for a persistent cough in my 13-month-old daughter just last week. Dr. Gates thought ears & lungs were fine, but told us that if she spiked a fever or got really out of sorts that we should consider antibiotics. She gave us a prescription in case we needed it, and left it up to us to make that call. I really appreciated that trust in us as good parents. (And we never filled the script, as she suspected!)