IRON DOCTOR!
As a health care worker, I hate to say it, but nurses and doctors suffer a lot of workplace violence from abusive patients, family members, and even associates determined to do violence.Intelligent species aren't going to tolerate being sedated all the time. If humans were being treated by pixies, do you think the human would be okay with it?
Since we're talking battletech-level science, why not med suits like in Starcraft? It incorporates environmental protection from toxins, diseases, and plain old physical abuse. You could have a species-specific set of medications built in as a pod, depending on who/what you were treating. A giant can crush you, but an ammonia breather is toxic to work around, a venomous lizard can poison you, and you never know when someone's newborn is also a face sucker from ALIEN. The Ytterbian plague is going around, and armored PPE is just the thing to keep it out. Hose it down at the end of the shift with sulfuric acid and hard radiation.
All this assumes you don't want to skip a biological doctor and just use robots. The "human" touch is important in medicine.
