Dr. Troy M. Dreiling

Disc Doctor VancouverDr. Dreiling has been providing chiropractic services to the Vancouver / Portland Metropolitan area and the families living there, for well over 23 years. The basis of his service is a caring heart and wanting to see that people in pain –  especially avoidable pain – can live the kind of life they envision for themselves by getting the care they need.

While Dr. Troy and his team at Zenaptic Chiropractic offer the full spectrum of chiropractic services, the good doctor also specializes in helping victims of auto accidents recover and rebuild from the minimal-to-major spinal and overall body trauma they have suffered, due to whiplash and other accident-induced stress.

Supporting the Community –

His commitment to community health, which is underlined by being voted “Best in Clark County” by the Columbian Newspaper Readers and the Clark County Chamber of Commerce 5 times now (2009, 2011, 2012, 2013 and 2014) and he is and remains a staunch believer in community involvement.

His actions speak for themselves – Dr. Dreiling has raised over $20,000 for charitable causes and has given away over $400,000 worth of services. Events included hosting an annual Kids Day America, promoting health, safety, and environmental awareness for the children in the community.

Beyond the local community, he has expanded his caring reach to open three chiropractic clinics in Romania and served on a Panama mission team, reflecting an overall adjustment of close to 1,000,000 people.

A former bodybuilder, Dr. Troy Dreiling also served as the team chiropractor for the State Champion Evergreen High School football team. He served on the team the was entrusted to take care of USA Judo, USA Weightlifting, USA Volleyball and USA Soccer.

Dr. Troy was also part of the group that took care of the Colorado Rapids Soccer team when they won the MLS championship. Several organizations know they can count on him, including the YMCA, YWCA, ARC Innovative Services, Options 360 pregnancy resource center, Salvation Army, Make a Wish, Pregnancy Resource Center, Life West Chiropractic College research, Portland Zoo, Wichoni International, Mt Hood Ski Patrol, Humane Society, Portland Rescue Mission and local schools.

The relationship between activity and health builds out the foundation of Dr. Troy Dreiling’s practice and why he does what he does in the way he does it. Because he thoroughly believes a healthy lifestyle is an undeniable component to one’s health, his ongoing mission is to serve as many people as possible with natural, safe, and effective solutions to achieve the body’s optimal state of being.

To reach that standard, he seeks to provide superior education – inspiring others to create a healthier “you”, community, and planet. In order to accomplish that task, he has created and maintains monthly advanced in-office talks, meaningful and educational weekly blog articles and self-home care presentations. His radio show, “Today’s Health -Absolute Life Radio” on KPDQ 93.9 FM and 104.1 FM , The Fish, inspires families to keep making healthy choices.

His daily enthusiasm and that of his team, for a healthy lifestyle are the keystones to Dr. Dreiling’s commitment to his patients and promoting a healthy lifestyle. These are reflected and showcased by his being a great chiropractor whose concern and friendship are offered to every patient that steps through the door.


As the new member of the professional team at Vancouver Disc Center of America, I wanted to take this opportunity to introduce myself.
My name is Gino Pascual D.C, and I graduated from Life Chiropractic College West in 2019. As a new member of Dr. Troy’s staff at DCOA, Vancouver, I have been serving both new and regular patients in the clinic since May of 2021. I love getting to know and serve those individuals seeking chiropractic and wellness support in their march towards better health. Dr. Troy has built a well-trained and professional medical team and I am glad to be part of it.

I am extremely drawn to, and appreciative of, working in and learning more about the wellness side of chiropractic, mainly because I started out as a wellness patient myself. When I was introduced to my first adjustment I was not aware of any aches, pain, or injuries, so I had no idea of what to expect or anything to compare it to. However, after receiving only a few adjustments I started to notice I was sleeping better, had more energy, was more flexible, my posture was improving, and it felt like I was moving more smoothly.

I quickly saw firsthand the benefits of getting adjusted – mainly in the impact on my performance as an athlete because I was very active in playing basketball and soccer.  The chiropractic adjustments not only improved my immediate ‘game’, but also helped me continue playing these sports with far less injury or stress to my body. This first-hand experience was a major factor in causing me to want to share my chiropractic experiences with other people – I also felt a great desire for helping people do and enjoy the activities they love to do.

Now, in my chiropractic journey as a trained medical professional, I have learned a basic, but very important fact: that in order to get people to the functional/wellness side of chiropractic, you often have to get them past the pain cycle. One of my personal joys is seeing someone who has had a complaint such as neck pain or low back pain, who later on after treatment begin talking about how they are now able to return to the activities they love such as going to the gym for a workout. I find it very rewarding and personally satisfying when I hear patients tell me that they are performing their activities with more ease and less pain, and seeing them leave the office with a smile on their face.

Before I trained and studied to become a chiropractor I had a few other jobs that actually helped me on my way to becoming more caring of people and wanting to help them. Some of the jobs I enjoyed the most in which I interacted with people, was that of being a swim instructor/ life guard, working with special needs groups, as well as coaching kids how to throw shot put and discus.

During my time as a swim instructor, I taught people of all ages, which included kids as young as two, up to and including adults. I was also active in teaching people with special needs how to swim. Along with coaching Special Olympics bowling, I also coached middle school aged children and high school athletic students how to throw shot-put and discus. I enjoyed doing all of these jobs because seeing people improve their skills in the activities they were involved in, especially when they had started with little to no skills, was especially fulfilling for me.

Growing up I was fairly athletic, having played soccer, basketball, ran cross country, and was a decathlete for track and field. In my undergrad I signed up for, and enjoyed the discipline – both mental and bodily – of few martial arts classes in Judo, TKD, and Hapkido. Because I really enjoyed playing and competing in these activities, I found the associated injuries, such as ankle sprains to be very annoying, especially if it limited my ability to compete.

These are just some of the experiences and reasons in my life that led me to want to help others find solutions when they are not be able to do the activities they like. I wanted to be involved in a career which allowed me to actually help people continue doing activities they love through effective regimens and body-maintenance therapies like those found in chiropractic. One of the first steps I took was that of acquiring a bachelor’s degree in Kinesiology (the scientific study of body movement) with the end-result of becoming involved in physical therapy programs. Luckily I heard I could also treat wellness patients in addition to patients that are hurt and injured (Wellness Program: a comprehensive health initiative designed to maintain or improve well-being through proper diet, exercise, stress management, and illness prevention). After hearing that, I entered into Life West’s Chiropractic program and upon graduating, continue to be very happy with the decision I made.

I sincerely look forward to serving the Vancouver and surrounding community. For a comprehensive list of the services Dr. Troy, myself and the medical professionals provide here at Vancouver disc Centers of America, I encourage you to visit the website or call us for a consultation.


Dr. Brian O’Neill, who now lives out of state but is still serving as an important consultant as one of the Vancouver, Wa Disc Center Doctors, is Nationally Certified in Non-Surgical Spinal Decompression from National University in Lombard, IL. Dr. O’Neill is a member of the The International Disc Educational Association (I.D.E.A.) which is dedicated to the progress and medical research of spinal disc conditions that empower doctors with the best educational tools utilizing non-surgical Spinal Decompression to provide the best patient outcomes.

Dr. Brian provides care for herniated and bulged discs in patients who have injuries such as whiplash, neck, back, and other pain.

Dr. O’Neill decided to pursue chiropractic after personally experiencing the healing benefits of chiropractic for his own back pain and foot pain. He received his first undergraduate degree in Psychology from San Diego State University, and his second in Human Biology from Logan University. Dr. O’Neill then pursued both a Master’s degree in Sports Science and Rehabilitation and his Doctorate in Chiropractic at Logan College of Chiropractic in Chesterfield, Missouri.

Dr. O’Neill is a Washington State Chiropractic Association member. Dr. O’Neill donated his time, expertise and experience to the community through chiropractic care for the Salvation Army’s Men’s Rehabilitation Center, the St. Louis Homeless shelter, the Crohn’s and Colitis associations and the St. Louis V.A. and he continues to donate his time, expertise and experience to the local pacific northwest community.

Dr. O’Neill spent his time working on his Master’s Degree helping all of the athletes at the University of Missouri and some of the local junior colleges in the area. Since receiving his Master’s Degree Dr. O’Neill has had the privilege of working with numerous professional, collegiate and high school athletes.

Together with his wife, Rebekah, they are active members in the community. Dr. O’Neill and his wife are also both avid hikers and fly fishermen enjoying the Northwest very much. Dr. O’Neill’s desire is to offer comprehensive health care through Chiropractic care to the Pacific Northwest and to make these the healthiest two states in the nation!

Leave a review for Vancouver, Washington Auto Accident Chiropractor Dr. Brian O’Neill.

Dr. Brian O’Neill is an approved Labor and Industries Doctor of chiropractic (DC) he may serve as an attending provider in the care of injured workers in Washington State. Chiropractors manage about one-third of the state’s occupational low-back injuries.

As a chiropractic physician, Dr. O’Neill may be an attending provider for workers with accepted extremity conditions as well as spinal conditions. Like care rendered by other health-care providers, chiropractic care for injured workers is designed to be curative and rehabilitative.

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