About our practitioners

Our practitioners specialize in the evaluation and treatment of patients with mobility issues. They are all graduates of the University of Washington’s Prosthetic & Orthotic program, and are licensed by the American Board for Certification in Orthotics, Prosthetics, and Pedorthics and the State of Washington. Between them, they have more than 60 years of experience in advanced prosthetic and orthotic treatments for pediatric and adult patients. 

Cindy Diener, CPO/LPO

Certified Prosthetist Orthotist

I’ve been working at Cascade P&O since April of 1994, after graduating from the University of Washington with a B.S. in Prosthetics and Orthotics. What began as an internship at Cascade has now blossomed into a full-time career.
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Debbie Donaldson, CPO/LPO

Certified Prosthetist Orthotist

I graduated from the University of Washington in 1992 with a Bachelor of Science degree in Prosthetics and Orthotics. I was first introduced to Prosthetics and Orthotics at a very young age by my mother, who made prosthetics and orthotics for people in need in India.
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Larry Paise, CPO/LPO

Certified Prosthetist Orthotist

People often wonder how I got interested in this unique field of Orthotics and Prosthetics. I spent an afternoon observing at a P&O clinic during my senior year in high school. When I saw a resilient 7-year- old boy run out of the office on his refurbished prosthetic leg, I knew this was what I wanted to do!
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Don Buethorn, CPO/LPO

Founder and Owner

After first earning a Special Education degree from Western Washington University, I decided to pursue the field of prosthetics and orthotics. I returned to school at the University of Washington School of Prosthetics and Orthotics and graduated in 1980.
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