I'm not a medic, but as an MO, I frequently work with them. I am constantly surprised by how infrequently the medics seem to do medically-related tasks. They seem to spend a lot of time stagnating "in the cages," stocking shelves / accounting for inventory, vehicle maintenance, etc. In Edmonton, it looks like they can be posted into: clinic, pharmacy, training, or "the field amb" - which comprises many of the above tasks that some troops refer to (disparaginly, at times) as "GD" (general duty).
In truth, MOST trades that I have witnessed in the CF have a variable amount of time spent doing "non-core" activities. As a physician, I'm lucky that most of my time is spent practicing medicine (at least, at the Captain level). But other trades, for example, the GDNO's (General Duty Nursing Officer's) sometimes spent months at a time posted to administrative positions, where they function almost interchangeably like HCA's (Health Care Administrators) doing coordinating tasks, answering e-mails, filling out performance evaluations on subordinates, etc. Just the thought of all that admin is nauseating to me (of course, some people amazingly actually LIKE it, which is good for them I guess). Now that I think of it, the above admin positions also exist for medics, although they might still get out to the field for a month or so every so often.