Of course there is! Just because it's impossible for Torchwood doesn't mean the Doctor couldn't do it. In "The Doctor Dances," he says in response to Rose's surprise over the nanogenes that restoring life is easy - it's "just nature's way of keeping meat fresh." I'm guessing the tricky part tends to be making sure that the person ends up back in his or her body when it's brought back to life; technically, the gas mask zombies never really left theirs (she said, fanwanking madly), and Owen's stuck solidly in his, so no problems there. The more troublesome detail would probably be the energy that's keeping Owen in place. If you didn't want to have the Doctor swooping in and totally making everything all better, you could have him not be able to dissipate or absorb it because it's an energy from beyond this level of reality or whatever, so the upshot would be that he could bring Owen back to life, but not be able to promise that he'd leave his body properly the next time it died. In terms of characterization for the Doctor, I think that would be more realistic; I don't think he'd want to have a hand in helping Owen stick around after he's supposed to be gone, but if he couldn't do anything about that, he wouldn't leave Owen stuck in a corpse, either.

Not that I have put a ton of thought into this since I wrote that drabble or anything.