A Pedorthist is a foot health care professional that specializes in the use of foot orthotic devices and footwear to address problems which affect the feet and related structures.

Curated Resources:
http://www.podiatryexperts.net/question/123/Pedorthist (Podiatry Experts)
http://podiapaedia.org/wiki/footwear/pedorthics/ (PodiaPaedia)
http://www.podiatryonline.tv/pedorthics.htm (Podiatry TV)
http://www.podiatrybooks.com.au/contemporary-pedorthics/36/ (Podiatry Books)