Hey - just saw this. Not sure if you are still looking, but if so, you should check the following:
1) Start with the NC Lyme Support Group -
North Carolina Lyme Disease Foundation, Inc.. You can probably get the names of doctors people have found helpful (or unhelpful,) there. ALso - many of the national groups may unofficially know of contacts in the Charlotte area - Time for Lyme, etc...
2) Columbia University Hospital's Lyme Research Center - they are one of the most up to date/knowledgeable groups who are studying and treating Lyme disease.
Lyme and Tick-Borne Diseases Research Center. The doctors in charge there may know of someone local, and they also have a training program to help educate doctors from all over the country, so they may have names.
3) The Lyme Disease Association has a doctor referral section on their website at
Lyme Disease Association
4) The American Lyme Disease Foundation will give you a referral if you email them - see their website
American Lyme Disease Foundation
5) The American Association of Naturopathic Doctors have a website where you can search NDs.
http://www.naturopathic.org/AF_MemberDirectory.asp
I would start with these sites, and then call individual doctors offices and ask f they know and treat Lyme. If you've been dealing with it for a while, then you're probably well aware of the politics involved, and also that sometimes office staff are not fully informed of their employer's specialities. Best of luck!