There are plenty of hospitals, walk-ins, urgent cares, and doctors offices in Maine; however, specialists are limited and hard to get ahold of when you need them. Medical services provided on the UMaine Campus is often limited in hours and availability of staff to see patients. There is supposed to be walk-in care but even if you call ahead you are not guaranteed to be able to see anyone. Most of the time you will either be asked to schedule with them during the limited timeslots they have left or be told to seek out off-campus medical care at EMMC Walk-in or some of the other health centers near campus.
Seeing as I am most likely to be sent off campus anyways most of the time if I need to see a doctor I go to EMMC Walk-In. I am extremely comfortable there with both the staff and the facilities. The only problem with EMMC is their limited hours. Most nights they close around 7:00 p.m. It would make sense to me that a hospital affiliated Walk-In would be open at least until midnight to help decrease the number of people directed to the E.R. This is a moot point because they sometimes do not even stay open until their posted times. When you get there at 6:00 p.m. and they close at 7:00 p.m., but the doors are already locked, there are very few options remaining.
The only Urgent/Walk-In care type facility close by which is open past 5 or 6:00 p.m. is the Convenient M.D. on Broadway off of exit 184. They are a standard operation with comparable facilities to EMMC's with one important difference. They close at 8:00 p.m. Their only pitfall would be that they are not connected to the Cutler/EMMC system so if you do seek medical attention there you are essentially starting from scratch.
The state of Maine, in general, seems to roll up the streets around 6:00 p.m. Back home we at least wait until 8 or 9:00 p.m. and there are some 24-hour urgent care options. Maybe someday they will make their way up to Maine, but I'm not going to hold my breath.