Foothill Ranch Team

Curtis Zakhar, PT, DPT

Clinical Director & Physical Therapist

Curtis received his Bachelors of Science in Biology from the University of California, Irvine in 2009 and then his Doctorate of Physical Therapy in 2012 from Western University of Health Sciences. As part of his graduate course work, Curtis completed clinical rotations in an orthopedic outpatient setting working with patients of various ages, injuries, and ability levels including Olympic athletes. He also gained experience working inpatient rehabilitation at Saddleback Hospital in Laguna Hills. During this time, Curtis was present during numerous orthopedic surgeries including shoulder and hand repairs as well as total knee and hip replacements.

Curtis personalizes plan of care specific to his patients and uses a variety of techniques acquired through his education and experience in clinics over the last six years. He focuses on manual therapy and progressive exercise while implementing current techniques as recognized by the American Physical Therapy Association.

Yvonne Poon, PT, DPT

Physical Therapist

Yvonne started her education at University of California, San Diego where she received her bachelors in biology with a minor in psychology. From there, she pursued a Doctor of Physical Therapy degree from Lynchburg College, VA. While at Lynchburg college, she completed clinical rotations in acute care, pediatrics, and orthopedics.

She particularly enjoys working with orthopedic and geriatric populations. Her passion stems a strong desire to help others restore mobility and return to their daily activities.

Outside of work, she enjoys yoga, cooking, traveling, and spending time with friends and family.

Kathryn Totheroh, PTA

Physical Therapy Assistant

Kathryn completed her Bachelor's of Arts in dance with option in dance science at California State University, Long Beach. After experiencing numerous injuries over her years as a dancer, she decided to switch careers to physical therapy in order to help others return to the activities they love. She started at Intecore in 2013 working as an aide, received her Physical Therapist Assistant degree with honors from Stanbridge University in 2017, and rejoined the Intecore family as a therapist assistant.

Kathryn is still involved in dance, working part time at the American Ballet Theatre Gilespi School in Costa Mesa. In her free time, she enjoys riding horses, going on day trips throughout Southern California with friends, and cheering on the Patriots.

Shandra Coenen, PTA

Physical Therapist Assistant

Shandra graduated with honors from Loma Linda University in 2014. Since graduation she has acquired a wide range of Physical Therapy experience, but is particularly passionate about working with the fast paced active population to restore function, and enable her patients to return to the activities they love.

In addition to her clinical experience, Shandra is also currently an instructor at Loma Linda University where she teaches Electrotherapy, Therapeutic Exercise, and Orthopedics for the PTA program.

In her free time, Shandra is an avid sports fan of the Colts, Dodgers, and Lakers, is passionate about her Ford Mustang, personal fitness, and enjoys traveling within the United States and abroad.

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