Doctor Latov in his book for patients speaks of the many types of genetic neuropathies and the genes involved. The most common of these is Chariot Marie Tooth disease or CMT.
So where does a patients obtain genetic testing if they suspect a genetic neuropathy. The answer is to speak with your neuromuscular neurologist about testing which is done by specialized labs for patients who may or may not have a history of PN in their family. You do not have to have a history in your family to suspect a genetic neuropathy according to Dr. Norman Latov MD PhD. The one testing site I know of is at this link: Athena Diagnostics