Just to get the ball rolling...
I have not used a practitioner like that, but if I thought one would help after exploring all or most other options, I'd look for a D.O. (as opposed to an M.D.) who specializes in "Functional Medicine". Many DO's are more "progressive" and also can pretty much do what an MD can do in most states as far as treatments and procedures. What you describe seems right up their alley. In my area at least, insurance coverage for them (or anything they prescribe) is minimal at best.
Aside, I saw your post a cpl years back on BioSignature.. Can I ask what the outcome of that was for you, and why that isn't still an option for you (or is it)?