safe to work w/ a practitioner not approved by Dr. Wilson?

I'm wondering if any of you have any insight into whether it is advisable to consult and work with a practitioner that is not approved by Dr. Wilson's nutritional balancing program?
I've been communicating with a practitioner through email and considering working with him, but i read on Dr. Wilson's website that practitioners that are not approved by him do not know what they are doing and are not experienced enough. Is this true?
I do not want to do Dr. Wilson's program because it states that the patient cannot receive any other sort of care from other doctors if they are following his specific NB. I have lyme disease and see a lyme literate doctor and need to take medicines and supplements for lyme, so i would not be able to do his program.

i hope someone can help me out!! thanks!