physical therapy in issaquah wa

Lake Sammamish Physical Therapy in Issaquah


(425) 391-5504
(425) 391-3670
Lakeside II Building
6520 226th Place SE
Issaquah, WA 98027
Clinic Hours:
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 6:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM

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

Welcome to Lake Sammamish Physical Therapy Clinic, conveniently located in Issaquah, WA. Our mission is to provide the highest quality healthcare and exceptional service for our patients while maintaining a strong commitment to high ethical standards. We believe the patient’s health and well-being come first, and strive to maintain a warm, compassionate, and caring atmosphere whether the focus is on acute care, or developing long-term solutions for chronic conditions.

Same Day Appointments Available.  Call to schedule today (425) 391-5504.


 – Medical Nutrition Therapy-

In this program you will work with Registered Dietitian Nutritionist, Margret Lyons, RDN to develop a custom nutrition plan designed to meet your individual goals. Medical Nutrition Therapy includes ongoing education and support geared towards sustainable changes that allow you to be successful in achieving your targeted results. Adding nutritional services to your rehabilitation program will help accelerate your overall recovery and health, getting you back to the things you love to do!

- Services -

Issaquah (Lake Sammamish 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
Elbow and Wrist Care
Foot and Ankle Care
Gait Training
Hip Care
Kinesio Taping
Knee Care
Manual Therapy
Motor Vehicle Injuries
Neck Care
Orthopedic Rehabilitation
Pediatric Physical Therapy
Shoulder Care
Spinal Rehabilitation
Sport Specific Therapy and Rehabilitation
Vestibular Clearing and Rehabilitation

- Staff -

Quinn Bio

Quinn Thomas-Sundvall, PT, DPT, CKTP, CSCS

Physical Therapist, Clinic Director Quinn attended Santa Clara University in California with a full-athletic scholarship in basketball and graduated with a Bachelor of Arts in Communications with an emphasis in Health in 2005. She then attended Seattle Pacific University, where she received a Bachelor of Science in Food and Nutritional Sciences and graduated with her Doctorate in Physical Therapy from Nova Southeastern University in Florida.  Quinn uses an evidence-based research approach with her patients to stay abreast of all the new and innovative developments in Physical Therapy. She has a relentless work ethic and strives to help those in need to get back to living the lifestyle they so desire. Most recently Quinn has received her certification as a Kinesio Taping Practitioner as well as a Certified Strength and Conditioning Specialist. Certified Kinesio Taping Practitioners specialize in methods of applying kinesio tape in a way that gives support and stability to your joints and muscles without affecting circulation and range of motion. It is also used for preventive maintenance, edema, and to treat pain. Certified Strength and Conditioning Specialists apply scientific knowledge to train athletes for the primary goal of improving athletic performance. She uses sport specific testing sessions, designs and implements safe and effective strength training and conditioning programs.
  • Doctor of Physical Therapy from Nova Southeastern University, 2012.
  • Bachelor of Science in Food and Nutritional Sciences from Seattle Pacific University, 2007.
  • Bachelor of Arts in Communications from Santa Clara University, 2005.
Jill Bio

Jill Bigby, PTA

Physical Therapist Assistant Jill was born and raised in Grand Rapids, Michigan, but has been a resident of Seattle for 13 years.  Her desire to make a positive difference in the lives of others though wellness and her love of athletics drew her to the physical therapy field.  Jill graduated from Pima Medial institute with honors, and received  an associate's degree in science.   She has clinical experience in a variety of settings including  outpatient sports Rehab, pediatrics, and in a skilled nursing  environment.  In her free time Jill enjoys, distance running, hiking, snowshoeing, playing co-ed softball, and biking.
  • Physical Therapist Assistant degree from Pima Medical Institute, 2011

Margret Lyons, RDN, CD

Registered Dietitian Nutritionist, Certified Dietitian Margret graduated from Bastyr University in 2015 with her baccalaureate degree in Nutrition and Dietetics. She went on to practice a portion of her dietetic internship at Good Shepherd Medical Hospital, The Institute for Healthy Living, and The University of Texas Health Science Center in northeast Texas. Rounding out her experience she finished her internship at Snoqualmie Valley School District, planning nutritious menus and teaching students healthy eating habits. 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 their goals 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 has competitively raced road bicycles and often commutes to work on her bike. She has recently run several half marathons with her next goal set on completing a full marathon.
  • Bachelor of Science and Nutrition, Bastyr University 2015.

- Testimonials -

“ This is the best therapy clinic I have been to.  Great Job!! ”-Sharon
“ I have found treatment explained to my satisfaction along with exercises to be done at home with stipulation to stop if painful at all.  I am completely satisfied in all aspects of my treatment. ”-Mary
“ My husband was here two years ago and was very impressed as well.  I would recommend Lake Sammamish Physical Therapy clinic. ”-Lisa