Barth Clinic Share: Health Care & Substance Abuse Barth Clinic Visit Website Request Info 2411 W. Dolarway Rd., Ste. 1 Ellensburg, WA 98926 (509) 925-7867 (509) 925-7871 (fax) About Map About Our Vision:To promote health and wellness in individuals and families that suffer from substance use disorders. Treatment with dignity & respect in the Kittitas Valley, and beyond. What's Nearby? Distance: 5 10 15 20 25 50 mi.