i'm wondering because i would like to pursue psychiatry with a DO degree. i checked out the official website and there are only a handful listed who are practicing psychiatrists.
I know probably the least about psych out of all the specialties, but I don't think it is very competitive - I might be wrong though. Regardless, I know it's not derm/plastics competitive, and there are DO's who go into those fields. In addition to the MD psych programs, you would have a great chance at the DO psych programs: Henry Ford, MSU, Millcreek, and UMDNJ.
Psych is listed on the VCOM secondary as one of the potential, "primary care" fields. It isn't very competitive overall, but I have read that it has become a little more competitive in the past couple of years.