Northwestern Colorado Medical Society includes the cities and towns of Clark, Coalmont, Cowdrey, Craig, Dinosaur, Elk Springs, Fraser, Gould, Granby, Aristocrat Ranchettes, Hamilton, Hayden, Hot Sulphur Springs, Kremmling, Maybell, Meeker, Oak Creek, Parshall, Phippsburg, Rand, Rangely, Slater, Steamboat Springs, Tabernash, Toponas, Walden, Winter Park, and Yampa.