in the auswathai website www.auswathai.com you will see a link to WA Thai .. it includes WA Thai Business Directory and in that directory are details of a thai doctor
the directory is always awaiting people to contribute .... hopefully if other people read this they will look at the directory and .... please fell most welcome to submit entries .... if they does not work ... on the home page of www.wat.austhai.biz is a comment about how to contact thai people in WA
i'm sure it will help
by the way i'm an aussie in Bangkok ... and if your Thai in WA then that's ironic ... haha