Caring for McMinnville Since 1985
Dr. George Siegfried, a decorated physician in practice since 1981, has provided whole-body wellness and natural care to the McMinnville community since 1985 through chiropractic and natural medicine.
Caring for Your Whole Body Naturally
I’m Dr. George Siegfried, and I’ve been in practice since 1981. In the fall of 1984, fresh from serving as the Italian Olympic track and field team’s chiropractor through the Los Angeles Games, my wife Rebecca and I drove into McMinnville to visit the historic Dunn Chiropractic Clinic — a practice caring for this community since 1922. Rebecca took one look at the old brick building and said, “I claim this building.” I joined Dr. Dunn as an associate in 1985 and later purchased the practice, becoming only its third owner in more than a century.
I believe in treating the whole person, not just the symptoms. My approach integrates chiropractic care, whole-food nutrition, and the Bilateral Nasal Specific Technique. By focusing on long-term wellness, my goal is to help you live a healthier, more comfortable life.
Our clinic is a place where you can find care that respects your body's natural ability to heal. I’m proud to offer services that are tailored to your unique needs and committed to helping you achieve whole-body wellness.
Decades of Training and Experience
- 1974
Graduated from Schiller University in Heidelberg, Germany; pre-med studies at Penn State and Temple followed.
- 1976
Introduced to the Bilateral Nasal Specific Technique by Dr. Wendell Diebold — going on to study more than 1,000 hours over ten years as the protégé of its developer, Dr. J. Richard Stober.
- 1977
Cared for the touring casts of Broadway's A Chorus Line, Dancin', and Ain't Misbehavin', and dancers with the San Francisco Ballet.
- 1981
Doctor of Chiropractic, University of Western States, Portland — and began practicing.
- 1983
Hired full-time as chiropractor for the track and field division of the Italian Olympic Team.
- 1984
Served the Italian team through the Los Angeles Olympics; first visited McMinnville and Dunn Chiropractic Clinic that fall.
- 1985
Joined the historic Dunn Chiropractic Clinic as an associate — later purchasing the practice to become only its third owner in over a century.
- 1996
Doctor of Naturopathic Medicine, National College of Naturopathic Medicine.
- 2004
Appointed by the Governor of Oregon to the Oregon Board of Chiropractic Examiners, where he served as vice president through 2006.
- 2015
Inducted into the Portland City League Baseball Hall of Fame — and pitched a complete-game victory that same night.
- 2022
Dunn Chiropractic Clinic celebrated 100 years of continuous care in McMinnville.
- 2023
Published on the Bilateral Nasal Specific Technique in Chiropractic Economics, a national trade journal.
Over the years, Dr. Siegfried also cared for jockeys at Portland Meadows Racetrack and helped found the Oregon Doctors of Chiropractic — serving as its president, vice president, treasurer, and secretary, and spending two years as its legislative lobbyist in Salem.
Only the Third Owner in Over 100 Years
Dunn Chiropractic Clinic has served McMinnville continuously since 1922.
The practice was founded in 1922 by Dr. Byron White, a nationally known chiropractor who ran a 22-bed hospital at the west end of Bayou Drive, drew patients from across the country, and started the Bayou Golf Course. When Dr. White passed away in 1963, the practice passed to Dr. George Dunn — a WWII veteran whose own recovery under Dr. White inspired him to change careers and devote his life to chiropractic.
Dr. Siegfried joined Dr. Dunn as an associate in 1985 and later purchased the practice, carrying its legacy forward as only the third owner in more than a century. He still cares for patients from Dr. Dunn's original practice — some now in their 70s, 80s, and 90s — guided by Dr. Dunn's simple advice: always keep the patient's interest first.
“I believe Dr. Siegfried is the current source of the essential lineage teaching of the BNS technique of cranial adjusting.”
Dr. David Schanaker, D.C.
Recognized by Patients and Peers
- Voted Best Chiropractor in McMinnville, 2025
- Oregon Chiropractor of the Year, 2000, 2001, 2002
- Oregon Chiropractic Award of Excellence, 1999
- Oregon Doctors of Chiropractic, Doctor of the Year
- Portland City Baseball Hall of Fame
- Vice President, Oregon Board of Chiropractic Examiners (2004–2006)
- Chiropractor for the Italian Olympic Team, Track & Field Division (1984)
- Published in Chiropractic Economics (2023), Plexus (2015), and The American Chiropractor (1998)
Meet Dr. George Siegfried, Our Dedicated Practitioner
I have been a lifelong pitcher, earning a spot in the Portland City Baseball Hall of Fame with over 200 wins — I even pitched a complete-game victory the night of my induction. I was also featured on ABC's The Bachelorette, where I demonstrated the Bilateral Nasal Specific Technique. Rebecca and I have been married 40 years, with four grown children and nine grandchildren, and I'm proud to give back locally, including raising funds for Henderson House, a McMinnville home for women and children, and Juliette’s House, which supports child safety.
What Patients Say About Dr. Siegfried
Dr. Siegfried is a game-changer! If you’re looking forward to visiting with someone who focuses on the core of the issues instead of the symptoms alone, Dr. Siegfried’s clinic is worth it. I drive an hour both ways because of the value and care received. Highly recommended for those who are tired…
One year ago I tripped and fell and wrenched my back. After two days of not being able to walk and get around, I went to Dr. Siegfried for treatment. The back pain was 8-9 on a scale of 10. He treated me weekly for 2-3 months, including daily moving & stretching exercises, nutritional supplements,…
After my auto accident, I was nervous about having my neck treated because I knew I was in a fragile condition. Dr. Siegfried immediately made me feel comfortable and performed a much more thorough evaluation than I had previously received, including X-rays and a clear explanation of my injuries.…
Reach Out for Your Path to Wellness
Call us at 503-472-6550 to schedule your no-obligation consultation. Discover how our decades of experience can support your whole-body wellness.