--if one has the capability and one can afford it, it is often worth a visit to one of the true centers that both has practices in peripheral neuropathy AND has a major reasearch component.

The ones I talk about are:

Cornell-Weill in New York City (which is in partnership with the New York/Columbia Presbyterian system)
Jack Miller in Chicago
Johns Hopkins in Baltimore
Massachusetts General in Boston
Jacksonville Shands in Jacksonville Florida

There are others that advertise but I find it harder to vouch for them, even though they may have some good doctors (i.e., Mayo Clinic, University of California/San Francisco).