Happy B'day, Mel !
I have my own teeth too..........just not all of 'em .......

Glenn's experience and advice is, I think, sound.
I have a specialist in PN at Hopkins, here in Balto (head of the dept of Neurology). He's written papers on PN, and done research in China.
Most of his associates defer to him with PN questions.
I feel secure in his ability to Dx & Rx me properly.
He hit 'the nail on the head' the very first time I saw him
with proper Rx'ng for my symptoms.
His avenue of approach is leaning toward pre-diabetic causes,
but taken with a grain of salt and an open mind- I trust him implicitly.
That's what Alan needs.
The referral and bio you've posted, doesn't seem to fall into the PN specialist category- but what the He!!, its only $15 and he will give you his opinion on a new EMG that should be done, anyway.
Happy B'day, and...... good luck.