Stubborness pays off. As does patience, although I have a much shorter supply of that.
After all the run around and nonsense I went through with Blue Shield (BS) over the last several months, I finally have my authorization to see a nutritionist. Mind you, this would have been more useful when I was re-embarking on the gluten free lifestyle back in July. Better late than never.
Long story short-ish: BS only covers nutrition services for diabetics. Anyone else is SOL.