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Mercer Island Physical Therapy


Phone: (206) 232-9045
Fax: (206) 232- 8871

7900 SE 28th Street
Suite 102
Mercer Island, WA 98040
Clinic Hours
Monday - Thursday 7:00 AM - 6:00 PM
Friday 8:00 AM - 4:00 PM

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

Welcome to Mercer Island Physical Therapy, conveniently located in downtown Mercer Island in the Chase building, with free parking.

At Mercer Island Physical Therapy, our mission is to help you get better, faster. We employ and develop highly skilled and thoroughly trained physical therapy healthcare providers.

We provide one on one care to ensure we are addressing your needs. Our professional staff excels in determining the cause and origin of your condition, selecting and implementing the most effective and efficient treatments, and educating each patient how to assist in their own care.  We specialize in treating upper extremity, lower extremity, back and neck pain, as well as working with individuals having balance and gait deficits. We also treat a wide variety of orthopedic conditions including sports injuries, joint replacements, work injuries, motor vehicle accidents, and chronic pain.

Same Day Appointments Available.  Call to schedule today (206) 232-9045.

– 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 -

Mercer Island provides expert care for a wide range of conditions, click the links below to learn more or call to schedule with a Physical Therapist.

Aquatic Therapy – Off Site
Athletic Rehabilitation
Back Care
Balance Training/ Fall Prevention
Elbow and Wrist Care
Foot and Ankle Care
Hip Care
Knee Care
Manual Therapy
Medical Nutrition Therapy
Motor Vehicle Injuries
Neck Care
Orthopedic Rehabilitation
Post Surgery Rehabilitation
Posture and Body Mechanics Training
Shoulder Care
Spinal Rehabilitation
Sport Specific Training
Sports Specific Therapy and Rehabilitation
Work Therapy and Rehabilitation

- Staff -

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Douglas Free, DPT

Physical Therapist and Clinic DirectorDouglas Free was born and raised in the Pacific Northwest and has spent most of his life here. He has been the director of Mercer Island Physical Therapy since 2001. He has worked diligently to provide the highest quality and most effective care possible, and in doing so has developed a strong reputation in the community and with referring doctors. He specializes in treating neck and back pain utilizing a variety of treatment approaches to best fit the needs of the individual patient.  This includes, but is not limited to, the teachings of Robin McKenzie, also known as Mechanical Diagnosis and Therapy. He enjoys family activities with his wife and two children including snow skiing, swimming, and walking the dog. He is also lacrosse coach for Sammamish Lacrosse Club.
  • Bachelor's of Arts degree in Psychology with a minor in Zoology from Central Washington University, 1993.
  • Doctor of Physical Therapy degree from the University of Southern California, 1999.
  • American Physical Therapy Association.
Kim Bio

Kim Cervenak, PTA

Physical Therapy Assistant Kim received her Bachelor's of Science degree in Kinesiology from Washington State University.  Following school she moved to Southern California and worked as an escrow officer for several years.  Her passion for patient care lead her to return to the northwest and pursue her Physical Therapist Assistant degree from Green River Community College.  While in school, Kim worked as a caregiver for a woman with brain cancer and another woman with MS. She has clinical experience in skilled nursing, assisted living, and inpatient physical therapy settings. She participated in the Susan G. Komen 3-Day for the cure Breast Cancer walk. In her free time, Kim enjoys working out, snowboarding, wakeboarding, traveling, and hanging out with friends and family.
  • Bachelor's of Science degree in Kinesiology from Washington State University
  • Physical Therapist Assistant degree from Green River Community College
Richard Barnes Bio

Richard Barnes, DPT

Physical Therapist Richard Barnes has been practicing physical therapy in the Seattle area for 8 years.   Before moving to the PNW he was an instructor at Loma Linda University in Southern California. He brings with him a wealth of knowledge and an assortment of treatment approaches and manual skills. Richard has a genuine passion for his patients and will strive to find functional solutions for their problems.  He enjoys tailoring his patient care to meet the needs of each individual in his care. He has worked closely with high school football players, runners, and athletes from all sports. He also works with collegiate runners and working professionals. He enjoys working on biomechanics to change stride length, resolve power deficits and solve most of the other common sport specific injuries. He specializes in neural tension deficits, as well as shoulder problems, in addition to lower quarter biomechanics. Away from the office he enjoys climbing mountains, running and reading, but will most commonly be found out with his wife walking their two dogs.
  • Bachelors of Science from Loma Linda University in Heath Science 2007
  • Masters of Physical Therapy from Loma Linda University 2007
  • Doctor of Physical Therapy from Loma Linda University 2008
  • American Physical Therapy Association

Sara Boehler, DPT

Physical Therapist Sara graduated from the University of Southern California in 2013 with her Doctorate degree in Physical Therapy.  She has experience in a variety of settings including outpatient orthopedic, pediatric, and acute care. Sara worked for two years under a TMJ specialist and is excited to bring her skill of TMJ physical therapy treatment to MIPT.  She also brings experience as an Academic All American Athlete in water polo to her skill set.  Sara grew up on Mercer Island and just recently relocated back to the Seattle area and is thrilled to be a part of the MI community once again.  In her free time Sara enjoys swimming, reading and spending time with family and friends.
  • Bachelors of Arts in Kinesiology from Occidental College, 2009
  • Doctorate of Physical Therapy from University of Southern California, 2013

Luke Gentry, PTA, RYT

Physical Therapist Assistant Luke received his AAS in Physical Therapy from Lake Washington Institute of Technology in December of 2014. His altruistic nature and lifelong drive to help others overcome physical ailments eventually led him to the field of Physical Therapy. Luke is also a lifelong practitioner of Hatha Yoga, earning his certification as a Yoga instructor in October 2016. He operates with a deep understanding of the benefit of incorporating Yoga into one’s recovery as well as in life after completing Physical Therapy. Luke is also an experienced martial artist in the style of Danzan Ryu Jujitsu. He has many varied interests and invests himself fully into each. However, his true passion lies in working with wood. He is a professionally trained cabinet and fine furniture maker and spent three years studying Japanese style woodworking. Currently, his primary focus is in the making and shooting of archery bows. Luke invests himself fully in designing a treatment plan to best suit the patient’s needs while incorporating his extensive knowledge and passion for health and wellness.
  • AAS Physical Therapist Assistant 2014, Lake Washington Institute of Technology, Kirkland, WA
  • Registered Yoga Teacher,2016,  Hatha Yoga Center of Seattle
  • Shodan, 1st-degree Black belt (projected Dec 2017) Kaishinkai Danzan Ryu Jujitsu Seattle
  • Cabinet and Fine Furniture Making 2008, Wood Technology Center, Seattle, WA

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 -

“Thank you so much for your extraordinary help with our son’s injury. You supported him and our family mentally and medically. You gave us all positive thoughts and hope beyond traditional approaches. You were amazing in turning our son’s outlook to a positive one, and capturing how he thinks! We very much appreciate your great efforts!”-Susanne and Bruce Foster
“I arrived at Mercer Island Physical Therapy on January 28, 2015 with a brand new left hip, weak leg muscles and bursitis in the right knee area. I left March 25 after 15 visits.  I was always welcomed by name. The office is friendly, supportive, and professional. Kyle Shilling and Kim kept me challenged. Kyle is excellent at adding on to exercises and finding another that would be helpful. They were a good team for me as they worked on the same things, but a bit differently.  It was never routine, but switched around during the sessions. The massages/stretches were very helful. I've left now with many known exercises, but not their discipline. Kyle surprised me with a graduation certificate. Thank you for helping me get my normal life back. I would highly recommend MIPT. You are appreciated.”-Wilma Tucker