Echoing what another review said -- stay away. Maybe it was better at one point, but the office staff are unhelpful and you'll be waiting literal hours to be seen. If you make an appointment for 3 PM, you'd better show up on time... so that you can wait 45 minutes until you're checked in, and then another 45 minutes before you're ever actually seen. Sometimes it's even worse -- have fun waiting. In one case there was an elderly lady waiting for an appointment, who had been waiting for well over two hours just in the lobby.
On occasion it has been bad enough that I had to sit on the floor because the office was packed with people.
The assistant was not very good at her job, either, and the office staff liked to bait-and-switch "real" appointments with Shurtleff with the assistant. "Oh, she's on vacation, is it OK if you see the assistant instead?" Uh, no? I explicitly made an appointment with the doctor, not her.
They routinely forget things and nearly tried to send my bloodwork to the wrong company, instead of the one covered by insurance. What a mess...