Seriously - how many physicians, even among the specialists, keep themselves up to date on the latest research? Many of them do, many of them are passionate, geeky about what they do, and in their spare time they'll be reading up on the latest research, they'll go to conferences, etc., like a passionate geeky programmer would. But many, and i'd say most, just don't. Their knowledge is whatever they were taught. And that wasn't necessarily the state of the art at the time they graduated - that depends on how up to date their *teachers* were.
So, yeah, wikipedia might be misleading; it might be out of date in certain places - in many places, even. But i don't necessarily think your physician will be more up to date. And i'm not sure how to fix that, either, because they *should* be!