Physical Therapist in Marysville
(360) 653-5800
                              6618 64th Street NE, Suite D
                             Marysville, Washington  98270


Therapist Bios

Therapist Bios

L.Todd Aalbu, MPT, CSCS, PES, CAFS 

Born and raised in Everett, WA, Todd graduated from Eastern Washington University with a Bachelor of Science in Human Biology in 1996, and Masters of Physical Therapy in 1999. In 2002, Todd was Certified as a Strength and Conditioning Specialist (CSCS), earned his Performance Enhancement Specialist (PES) certification with the National Academy of Sports Medicine in 2009, was Certified in Applied Functional Science (CAFS) with the Gray Institute in 2014, and is a member of the American College of Sports Medicine. Todd is a Certified ASTYM provider, since 2000, a Bike Fit Specialist, and has completed courses within the North American Institute of Manual Therapy (NAIOMT), many functional rehabilitation courses with Gary Gray, PT and Vern Gambetta, as well as the Postural Restoration Institute. Having a particular interest in the treatment and prevention of athletic injuries, Todd integrates functional movement patterns into his rehab programs for all injuries and dysfunction. Todd specializes in the design of performance enhancement strength and conditioning programs, as well as in the treatment of spinal and extremity disorders, and incorporates therapeutic exercise and postural education in treatment.

Before launching ProAction Physical Therapy, PLLC with his wife, and Occupational Therapist Tamsie, Todd began his Physical Therapy career in Mukilteo, WA, and managed a successful out-patient clinic for 5 years in Lake Stevens, WA. When not in the clinic, Todd's passion is slalom waterskiing and working with athletes within the field. He has two children, daughter Elle, and son Easton.


David Scarth, MPT, CSCS

David received his Master’s Degree in Physical Therapy from U.S.C. in 1990, and his Bachelor’s Degree from Azusa Pacific University in 1983. David has broadened his skills over the last 26 years, and has vast experience in treating outpatient sports/orthopedic injuries and vestibular issues, with focus on restoring function to individuals after injury, trauma, or surgery to the spine or peripheral joints.  David earned his Certification in Strength and Conditioning (CSCS) through the National Strength and Conditioning Association in 2010.

David grew up in Oregon, and resides in Arlington with his wife Janet. They are blessed with four children, Caleb, Karissa, Joshua, and Hannah. As well as being active in their church, David also enjoys watching and playing basketball, biking, golf, tennis, volleyball and soccer.


Dawn Bostic, PT

Dawn graduated from Eastern Washington University in 1990.  Her entire career has been in Orthopedics and has spanned from Spokane, WA to the Western Washington region.  She has a strong manual therapy background with North American Institute of Manual Therapy (NAIOMT).  Over the past 12 years she has focused on functional treatment interventions and patient education.  As a way of giving back to the profession, she enjoys mentoring Physical Therapists early in their career  and as a clinical instructor to Physical Therapy students.  Throughout her 26 years of experience she has developed a wide variety of specializations.  Dawn is Certified in Sportsmetrics, a Certified ASTYM provider, and is also an AVNEW Health provider.  

Dawn and her husband Randy have 2 daughters and 2 grandchildren.  In addition to spending time with them, she enjoys riding her Harley Davidson with her husband, gardening, cooking, and baking.


David Dahl, DPT

Born and raised in Bowling Green, Kentucky, David graduated from Western Kentucky University with a Doctorate of Physical Therapy in 2016 preceded by a Bachelor’s Degree in Chemistry and Biology.  After graduation, he made the decision to begin his career by joining the ProAction family.  David focuses on function as being a priority when treating patients.  He has a passion for manual therapy and strives to mold every treatment specifically for each person. David believes in the value of thoroughly educating patients so that they may take control and vibrantly live the lives they were given.

Outside of the clinic, David enjoys reading, exploring the outdoors with his wife, frequenting the gym, and serving in his church.

Gaby Guenther, LMP, CHT

Gaby moved to the United States in 1993 from Germany where she graduated with an international business degree from Munich College of Trade, Finance, and Economics. In 1998, she graduated with honors from Seattle School of Massage and began work as a licensed massage practitioner. In 2000, she was certified at the Foeldi clinic in Germany in manual lymphatic drainage and decongestive physiotherapy after Vodder. In 2013, Gaby was Certified in HypnoTherapy, and enjoys aiding clientele with techniques in pain management, weight loss, anxiety reduction, as well as performance enhancement. She has also attended workshops in pregnancy massage, reflexology, polarity, positional release techniques, and chronic pain treatment.

In her spare time, Gaby enjoys reading and traveling to Europe with her husband, son, and daughter. 

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