Skip to main content




Outside Orders

To begin the process of referring your patient to Arthritis Northwest, please send paperwork by fax.

Fax Number for Referrals: (509) 838-6561

Our Providers

National Provider Identifier Numbers

Howard M. Kenney, MD - 1780754671
Jeffrey B. Butler, MD - 1700956620
Gary L. Craig, MD - 1508936436
Sean P. LaSalle, MD - 1790715126
Eric C. Mueller, MD - 1912017203
Christopher M. Valley, ND - 1093970329
Erin Webster, PA-C - 1740337293
Diana Webster, ARNP - 1306034335
Dale Raschko, PA-C 1497089056
Penny Sather, ARNP – 11884127409

Michael C. Coan, DO – 1386955904

Courtney Smyth, ARNP – 1841882321

Christopher Wright, MD – 1356571087

The largest in Eastern Washington

We have the best collection of talent, experience and knowledge to deliver the highest quality of rheumatology care.

Our team makes a difference

A friendly, caring and knowledgeable staff greets and treats patients.

Down-to-earth doctors

Approachable doctors lead a staff that is unified in putting patient care and comfort first.

Combined experience

Our board-certified doctors hold hospital credentials and faculty positions at leading Northwest medical institutions.

At the forefront of rheumatology treatment

Our doctors hold memberships in national organizations and speak at leading medical conferences.

Our Locations

Choose your preferred location