I want to toss my vote in for better dwarven healthcare.
A specific sick-bay/hospital/hopsice/whatever room would be nice, and it just makes bloody sense to have a health-care profession.
A dwarven doctor might not be able to sew severed limbs back on or anything, but they should be able to extract an embedded weapon automatically (if a farmer can yank the thing out once I unforbid it, a doctor/nurse can sure pull it out of their own volition!), or set/splint a broken limb (that's really remedial medicine, even prehistoric man may have done this by some accounts), apply liquor to a wound to sterilize it and speed recovery by preventing infection, or otherwise make primitive but potentially significant impacts on the healing process, obviously with a chance to help depending on their skill (I'd say with a chance to harm as well, but the healing process is already fairly brutal so if that would be implemented it should hopefully be to a minor degree for the sake of balance only if needed).
Their job task would be their "rounds", they'd loiter in the hospital and perform checks for any of their doctorly tasks that might be needed by the patients. Ideally I think they would bring water and food no more often than any other dwarf currently does, so they're not too busy fetching sustenance for bruised Udib to pull the spear out of Urist's lung.
I think this would fit quite acceptably into the spirit of the game. Dwarves may be in an ambiguously middle-ages level of development but civilized (and even pre-civilized) societies have always known how to do -something- about a wound even before they knew squat about the science surrounding it. The primitive treatments for many common injuries or ailments were often more effective than a modern observer might guess them to be, too.