Hi Liz, I am country Victoria but travel 2 hours to Melbourne to see an Associate Proffessor of neuro', he was highly recommended to me by a director of a Neuropathy Association in Melbourne, he diagnosed me in his first lot of tests, and i have been healing ever since to nearly a full recovery in approx 4 years.
So based on this, if you are in Victoria i could suggest my neuro, but if you live in any other states, i wouldn't have a clue on any other neuro's that really do know about PN.
Please keep in mind that even with the best neuro's working for you there is always a chance were they can't find a cause [ idiopathic ] but to give yourself the best chance of finding the cause you really do need a neuro that is very experienced with Neuropathy, a normal neuro is not good enough.

Brian