I do always suggest seeking out an expert.
Self research is a plus for anyone wanting to try anything different from the norm.

Correct, NUCCA is the association of chiropractors == National Upper Cervical Chiropractic Association
where you can learn more about it and find a DC
http://www.nucca.org/find_doctor.php

It's simpler to call it NUCCA in general so anyone can easily do a search to find more info, and I don't have to type out upper cervical adjustment every time.