How to find those pesky specialist

Hello one and all in the lovely state of Idaho, I was wondering if someone out there could help me with some ideas of how to locate a pyschiatrist and a specislist for hypertensive disorders. I am thinking that maybe I should get out the phone directory and some darts and just call whoever the dart lands on. Does not sound like the best idea, so if you could give me some input on this I would greatly aprreciate the help. I live in the panhandle in an around Ceour d' Alene and Post Falls. Again thanks for any input with this.