Mark B. Thomas, D.C., D.A.B.C.I. & Erik Gurule-Long, D.C.

Helping your body heal itself, compassionately, skillfully, artfully.


Thomas Chiropractic Logo

Kind words from our patients

We consider Dr Mark Thomas our primary care provider for so many reasons. His skill set is vast and deep and allows him to provide care for his patients using a wide array of methods. Whether the issue is general health or from an accident, injury or chronic ailment, we feel confident in his assessments, approaches and care.
E.P. and B.B
I don’t make Dr. Thomas’ job easy... I’m 67, have Ankylosing Spondylitis, Scoliosis, Arthritis, CPTSD and am prone to Epstein Barr. I could not lead the active life I live without Dr. Thomas’ efforts. His dedication to Continuing Education is remarkable. He is very approachable and listens to his patients and their bodies.
I have been a patient of Dr. Thomas’s for around 20 years. Mark has helped me with a wide range of physicality issues and physiological problems, using a variety of gentle techniques and manipulations not employed by most chiropractors. Mark’s repertoire of skills, knowledge and treatments are a revelation. His sympathy and understanding stand out amongst health care providers I have known.
Thomas Chiropractic Logo

About Us

Dr. Mark Thomas

Dr. Mark Thomas is a Graduate of Western States Chiropractic College and has been in practice in Cottage Grove Oregon since 1977.

His philosophy is to provide comprehensive chiropractic care by providing a diverse array of techniques designed to enhance a patient’s neurological/functional expression , with an emphasis on attending to fascial restrictions and imbalances. His goal is to provide natural and preventative health care in an honoring way. He strives to find and treat the causes of problems instead of treating just the problems themselves. If the body can be helped to return to a healthier state, it should be well equipped to heal itself.

Treatment approaches include:

  • Manual & Instrument Adjusting
  • Cox intersegmental traction
  • Various fascia release techniques
  • Internal diagnostics – board certified
Dr. Erik Gurule-Long, DC

Erik Gurule-Long became a massage therapist in 2011 after which he specialized in therapeutic deep tissue massage. 

In 2014, he received his Bachelor’s in Human Physiology from University of Western States.  In 2016, he received his doctorate in Chiropractics also from University of Western States in Portland Oregon.  

Erik utilizes a variety of techniques to evaluate and treat patients including:  Drop table, Activator, manual adjustments for spine and extremities, instrument assisted soft tissue mobilization, myofascial trigger point therapy, deep tissue massage, and myofascial release, as well as rehabilitative exercise programs. 

Erik blends these techniques as needed and as requested by patients.  His focus is on being as gentle as possible while still being effective. 

Thomas Chiropractic Clinic


The clinic is located on the east bank of the Coast Fork Willamette River in historic downtown Cottage Grove, Oregon. There is street parking near the clinic’s main entrance, and additional parking in back of the clinic with easy, no-steps access to our building. Our office has four treatment rooms, an x-ray, a private office, and business offices. The clinic is well-staffed and nicely equipped. We have a loyal, wonderful patient base (both insurance and cash) and a great reputation in the community

Map Location
Clinic location map
Thomas Chiropractic Clinic - Exterior
Clinic main entrance
Main Street Cottage Grove, Oregon
Main Street, downtown Cottage Grove
Thomas Chiropractic Logo

Contact Thomas Chiropractic Clinic

Yes! We are now taking new patients!

Mailing Address:

500 Whiteaker Ave
Cottage Grove, OR, 97424






9:30-12:30 & 1:30-5:00

Tuesday & Thursday
8:30-12:30 & 1:30- 5:00

Closed Wednesday, Friday, Saturday & Sunday