Reaction Physical Therapy


(360) 363-4246
(360) 925-6342
Reaction Physical Therapy
103 E 3rd St
Suite 200
Arlington, WA 98223

Conveniently located across the street from the Police station.
Clinic Hours:
Monday 7:30 AM - 6:30 PM
Tuesday 7:30 AM - 12:30 PM
Wednesday 7:30 AM - 6:30 PM
Thursday 7:30 AM - 12:30 PM
Friday 7:30AM - 6:30PM

By appointment only. Last appointment scheduled one hour before closing to allow for appropriate treatment time.


At Reaction Physical Therapy in Arlington, WA, your Physical Therapist will create an individual therapy program that is specifically developed for you based on a complete evaluation of your condition. Our rehabilitation philosophy is to promote healing through a combination of exercise and manual therapy, as well as to educate our patients in injury prevention, body mechanics and self-help techniques. We aim to provide you with the best physical therapy in Arlington.

We work with each individual patient and their physicians to design a treatment program that fits their lifestyle to ensure that our patients have the best possible outcome. The ultimate goal is for you to return to normal activities of daily living, work and participation in sports or recreational activities. Our treatment approach first focuses on decreasing pain, edema and muscle guarding to improve joint motion.

As you improve, your exercise program will progress to fit your needs for coordination, balance, endurance and strength training. You can expect your physical therapy experience to be unique, one on one and allow you to meet your individual goals. We are able to assist you with transitioning from exercise for rehabilitation to exercise for health maintenance, cardiovascular improvement, return to work and/or enhanced athletic performance.

Same Day Appointments Available.  Call to schedule today (360) 363-4246.

– Custom Orthotics –

Orthotic devices are used to alter or modify foot function. They are designed to treat, adjust, and support various biomechanical foot disorders, aches and pains. The most effective orthotics are custom-made and are crafted to meet the specifi c needs of a particular individual. Custom orthotics are created using a cast of the foot to replicate the exact shape and contour. Your PT will determine misalignments in foot structure, directing the orthotic lab to make adjustments to improve function and support.. The finished orthotic keeps the foot properly aligned by eliminating abnormal biomechanics. Depending on the need, the orthotic can be customized with padding or dimpled for relief points around spurs

 – Gait Analysis –

Repetitive training such as running and cycling, often lead to muscular strength and flexibility imbalances. An example of this would be a cyclist’s quadriceps muscles becoming highly developed, and the smaller stabilizing muscles becoming weak in comparison. Similarly, this imbalance can exist in terms of flexibility, where a runner’s calves and hamstrings become very tight and strong while the quadriceps becomes relatively weak. Persistent training can drive these imbalances to the point of injury.

A gait analysis will help identify imbalances of alignment, flexibility and strength. Specific stretches and strengthening exercises may be recommended to help minimize and correct these imbalances. Walking and/or running gait will be assessed, and advice on running shoe selection will be offered.

- Services -

Arlington (Reaction Physical Therapy) provides expert care for a wide range of conditions, click the links below to learn more or call to schedule with a Physical Therapist.

Back Care
Balance Training/ Fall Prevention
Biomechanical Evaluation
Custom Orthotic Fabrication
Elbow and Wrist Care
Epley Maneuver/ Vestibular Rehabilitation
Foot and Ankle Care
Gait Training
Golf Fitness
Hip Care
Kinesio Taping
Knee Care
Manual Therapy
Motor Vehicle Injuries
Neck Care
Orthopedic Rehabilitation
Posture and Body Mechanics Training
Shoulder Care
Spinal Rehabilitation
Sport Specific Therapy and Rehabilitation

- Staff -

Jeff Bio

Jeff Carlson, MSPT

Physical Therapist, Clinic Director Jeff is a native of the Puget Sound, raised in the Everett and Mukilteo area most of his life until recently moving to Lake Stevens. He received his Bachelors of Science degree in Exercise Physiology and Masters in Physical Therapy from the University Puget Sound.  Graduating in 1990 Jeff began practice in outpatient orthopedics, developing a strong interest in manual therapy and biomechanics of overuse injuries related to running.  Early in his career, he completed a two-year advanced manual therapy residency with the Ola Grimsby Institute. Jeff continued to pursue specialization in lower quarter movement and gait analysis for more than two decades, including casting and construction of orthotics. “At some point I realized so many of the chronic tendinitis, degenerative hip and knee pathologies were highly influenced from the ground up.” –Jeff Carlson Jeff’s practice and client base have flourished over the past 26 years at Bellevue Physical Therapy, developing many lifelong physician and patient relationships that come from a very hands-on, high customer service approach.  Jeff has now decided to continue his career with a new pursuit starting REACTION Physical Therapy in Arlington, expanding the North end RET Physical group, which now includes REACTION Physical Therapy at Lake Stevens and Smokey Point.
  • Masters Degree in Physical Therapy from the University of Puget Sound
  • Undergraduate in Exercise Science from The University of Puget Sound.

Sarah Larson, PTA

Physical Therapist Assistant Sarah received her Physical Therapist Assistant degree from Carrington College in Mesa, Arizona. Born and raised in WA state, she moved back home to begin her career. She has experience working with  experience working with inpatient, orthopedics and collegiate athletes. As a former athlete herself, she enjoys working with young athletes and looks forward to enhancing her skills in sports rehab. She likes to spend her free time with family, friends, or cheering on the Seahawks!
  • Physical Therapist Assistant degree from Carrington College in Mesa, AZ

Justin White, PT, DPT

Doctor of Physical TherapyJustin is a new graduate who brings over two decades experience working in the fitness and wellness industry helping people meet their goals. He has worked with a variety of people throughout his career and during his DPT education including pediatrics with special needs, athletes, and adults of all fitness levels. No matter the population, Justin is most passionate about helping people return to the lifestyle and activities that are most important to them. Justin earned his Bachelors of Arts degree in Fine Arts from Western Washington University in 2015 and his Doctor of Physical Therapy degree from the University of Washington in 2019. Education:
  • Doctor of Physical Therapy, University of Washington, 2019
  • Fine Arts Painting, Western Washington University, 2015
  • American Physical Therapy Association

Margret Lyons, RDN, CD

Registered Dietitian Nutritionist, Certified Dietitian Margret graduated from Bastyr University with her baccalaureate degree in Nutrition and Dietetics. She practiced her dietetic internship at Good Shepherd Medical Hospital, The Institute for Healthy Living, and The University of Texas Health Science Center in northeast Texas. Margret has practiced in a variety of settings including acute care for adults, neonatal nutrition, diabetic education, bariatric and weight loss nutrition, and outpatient counseling. Her counseling technique utilizes motivational interviewing to help patients reach goals that are important to them and maintain results over a lifetime. Margret’s passion for health does not end with nutrition. In her leisure time she hikes in the Cascade Mountains and scrambles up local peaks. She is a former bike racer and current marathon runner.  When she is not running she enjoys fly fishing, gardening, and tasting cuisine from all parts of the world.
  • Bachelor of Science and Nutrition, Bastyr University 2015.

Eli Thompson, ATC

Certified Athletic Trainer I have been working as a certified athletic trainer for one year. I have worked in several different settings such as the high school and collegiate setting as well as the clinical setting. Having a variety of settings worked in has allowed me to gain knowledge of the different ways healthcare providers practice and I have incorporated these skills into the way I treat athletes to provide the best possible outcomes. Having played sports my entire life, I am passionate about making sure my athletes and patients are able to get back to the activities as quick as possible. I earned my Bachelor's Degree Athletic Training from Western Carolina University in Cullowhee, NC.
  • Bachelor of Science in Athletic Training, Western Carolina University, Cullowhee, NC
Certifications & Training:
  • Board of Certification Athletic Trainer American Heart Association Basic Life Support (CPR and AED)
  • National Athletic Trainers' Association

- Reviews -

Chris Peters
Chris Peters
14:11 08 May 19
Absolutely the best.
josh austin
josh austin
23:25 12 Apr 19
Great place with wonderful staff! I would highly recommend this office to any one in need of physical therapy.
Melanie Smith
Melanie Smith
15:30 11 Oct 18
This is an easy 5 star review. These people are amazing. They treat my daughter like family. They have been so knowledgeable and effective in her recovery it blows my more
Stanley Boyle
Stanley Boyle
16:17 28 Aug 18
Showing good improvment after only 3 sessions. Great place
Russ Hanley
Russ Hanley
16:32 13 Aug 18
Jeff Carlson is is an excellent therapist and has a friendly and helpful staff. I would, and have, recommended Reaction PT in Arlington. Jeff has helped more
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