I think I found my specialist a decade ago either through the Yeast Connection doctors list (they provide a list of allergy doctors that I found out about the list by reading an early edition of the "Yeast Connection Handbook" or cookbook.)
Or I found him by typing in "candida doctor" and my town and state. I can still find him by typing in candida doctor and the city I lived in, and he's on several alternative physician lists. You can look under alternative medicine and homeopathy and naturalists. I don't have any in the town I live in now, although I did find a traditional chinese doctor that I plan to go to. My current doctor has a lot of knowledge about candida, unfortunately I never see him, only his nurse practitioners, who aren't candiders.