Is a Phd as good as a MD

Have a consultation appointment this evening, I know im not really in a position to be picky, but is there a major difference between someone who has a MS and PhD in Clinical Psychology vs a MD? I've read some other posts in here and a lot of people say the got their diagnosis through a psychiatrists, and only a few got theirs through a psychologist. This psychologist has a specialty in OCD (along with depression and anxiety) so should I be fine?