I'm both transgendered and diagnosed with depression, and I've had good luck getting insured via Rudi Hoffman. I don't recall what the name of the insurance company was, and I haven't heard the final OK since the medical examination, but I don't foresee any difficulties. I was warned they'll most likely put me down on male rates (feh) despite being legally female, but I can deal with that even if I don't like it.