Ponyville Medical Personnel · 7:05pm Dec 22nd, 2015
Ponyville has a General Hospital, which is rather odd for such a small town, and makes one think that Celestia had a good idea that the town would effectively be a garrison town and one likely to expand in the near future. I also imagine that it takes in patients from its whole area of the southern Vale of Avalon (my name for the valley over which Canterlot looks). Ponyville General seems very well-equipped by ~1950 standards, which seems to be the approximate level of Equestrian medical technology. There must be at least a dozen staff in a building that size.
Doctor Stable Condition works at the hospital, and may well also have a private practice.
Nurse Red Heart has also been seen at the hospital, and this is presumably her main workplace.
There is a pediatrician, Doc Top -- "Top" is probably not his only name. We don't know if he works at the hospital and/or has a private office.
Also, a veterinarian, fan-named Mane Goodall. She seems to work away from the hospital.
And, while she's not a medical professional, Fluttershy obviously knows a lot about animal care, and probably has at least the knowledge of a veterinary assistant in our world. She works out of her home.
My personal headcanon for the pediatrician is that he's Twist's father, and he's a lot more competent when he isn't trying to treat a dragon. I like to call him Spiral Fracture.
You forgot Tender Heart, Candy Strips, Snow Heart, and "Sweet Heart" (Nurse Battle Axe is my nick name for her).
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There are also a couple of stallion orderlies we see when Rainbow Dash breaks in, and who go off to round up Screwy after they are done chasing her.
Perfect.
I figure they need that hospital mainly due to living next door to the Everfree AKA Monster Central. Add in the presence of Pinkie Pie, Rainbow Dash, and the CMC, as well as Ponyville becoming ground zero for every second monster and would-be tyrant who shows up, and no wonder it's so well-equipped. I sometimes wonder if it's big enough.