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Mon / Wed 7:00AM - 5:30PM

Tues / Thurs 7:30AM - 5:30PM

Fri 8:00AM - 5:00pm

Saturday CLOSED 

Sunday CLOSED 

Ellensburg - Argonaut Peak

IRG - Argonaut Peak Physical Therapy

At IRG - Argonaut Peak Physical Therapy, our compassionate and experienced providers truly enjoy working with patients to empower them with the knowledge and skills to move forward on their journey to their best selves. We work to integrate physical therapy into a patient’s total healthcare strategy so that they may return as soon as possible to a full and active life.


Wondering if you need a referral from your doctor to start treatment? Washington is a direct-access state, meaning that you can start physical therapy without one in-hand. Start your road to recovery, and let IRG handle the rest!

Our Staff

Jonathan Suttles


Dr. Andrea Tierney

DPT, MS, ATC, PT, Clinic Director

Dr. Grant Lund


Larissa Thomas


Our Services

Physical Therapy

Injury Prevention Sports Injury Rehabilitation Spine Rehabilitation Pre and Post-Surgical Rehabilitation Manual Therapy Geriatric Rehabilitation Blood Flow Restriction (BFR)

Specialized Therapy

Kinesio Taping Balance and Falls Prevention