> Except since this isn't a standard procedure, they can charge whatever they please for the testing and prep - why do you think a doctor won't make money with fecal transplants?

Is he allowed to, either by law or his malpractice insurance?

There are hospitals doing fecal transplant procedures, especially for difficult cases of C. difficile that aren't responding well to drugs like Vancomycin. Though some FDA rulings are making that complicated recently as it's gaining popularity.

I've talked to a number of doctors who do it, and while "It's hard to bill insurance for something like this" comes up, much more common issues are the patients being like "You want to do what?", that there's no real standard delivery mechanism, and that it's fairly lab intensive.