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Your Trusted Chiropractor in Highlands Ranch, CO
Pinnacle Chiropractic has served the Highlands Ranch community since 2007, providing expert chiropractic care and personalized treatment plans. Our team, led by Dr. Aaron Casselman with over 18 years of experience, specializes in spinal decompression, auto injury rehabilitation, and non-surgical pain management. We combine advanced techniques like Class IV laser therapy and shockwave therapy with traditional adjustments to address conditions ranging from migraines to sciatica. Our approach emphasizes long-term wellness through physiotherapy, targeted exercises, and posture correction. Recognized as the Best Chiropractor in Highlands Ranch for 14 consecutive years, we prioritize patient education and holistic healing.

Our facility offers in-house X-rays, physical therapy, and the Ideal Protein Weight Loss program to support comprehensive health. With a focus on individualized care, we treat patients of all ages, from athletes to office workers, ensuring safe and effective recovery. Our staff maintains rigorous hygiene standards and provides 24/7 emergency availability for urgent care needs. Over 300 five-star reviews attest to our commitment to excellence in chiropractic services. Whether addressing acute injuries or chronic pain, we strive to restore mobility and improve quality of life through evidence-based treatments.
Dr. Aaron Casselman, DC
Services
Chiropractic Care Spinal Decompression Auto Injury Rehab Physical Therapy Class IV Laser Treatment Shockwave Therapy X-rays Ideal Protein Weight Loss Sports Injury Rehab Posture Correction
Served areas
  • Highlands Ranch, Douglas County
Details
  • Year established: 2007
Highlights and features
  • 14 consecutive years voted Best Chiropractor in Highlands Ranch
  • Personalized treatment plans tailored to individual needs
  • Non-surgical solutions for chronic pain and injuries
  • 24/7 emergency availability for urgent care needs
  • Over 300 five-star patient reviews validating effectiveness
Associations and certifications
  • Chiropractic Biophysics Organization
  • Colorado Chiropractic Association
What people say
Pain free Highly recommend Expert care Friendly staff Life-changing results
Services
Chiropractic Care
Our chiropractic care focuses on spinal alignment and nervous system health through manual adjustments. This treatment alleviates pain from misalignments, injuries, and chronic conditions by restoring proper joint function. Patients benefit from improved mobility, reduced inflammation, and enhanced overall wellness through personalized adjustment plans tailored to their specific needs.
Spinal Decompression
Non-surgical spinal decompression uses traction technology to relieve pressure on spinal discs and nerves. This treatment promotes healing for herniated/bulging discs by creating negative pressure that draws nutrients into the disc space. Patients experience reduced back pain and improved spinal function through a series of targeted decompression sessions combined with complementary therapies.
Auto Injury Rehab
Specialized rehabilitation programs address injuries from car accidents including whiplash and soft tissue damage. Our approach combines chiropractic adjustments, physiotherapy, and muscle therapy to restore mobility and reduce chronic pain. Treatment plans focus on preventing long-term complications while facilitating complete recovery from collision-related injuries.
Class IV Laser Treatment
High-power laser therapy delivers light energy to injured tissues for accelerated healing and pain reduction. This non-invasive treatment increases blood flow, reduces inflammation, and stimulates cellular repair for conditions like tendonitis and arthritis. Patients receive targeted light therapy sessions that penetrate deep into muscle and connective tissues for lasting pain relief.
Shockwave Therapy
Shockwave therapy uses high-energy sound waves to stimulate healing in chronic musculoskeletal conditions. This treatment breaks down calcium deposits, improves circulation, and accelerates tissue repair for plantar fasciitis, tennis elbow, and other chronic pain conditions. Patients typically experience significant improvement after 3-5 treatment sessions.
Questions
What chiropractic services do you offer?
We provide spinal adjustments, decompression therapy, physiotherapy, laser treatment, and shockwave therapy for pain management and injury recovery.
Do you treat auto accident injuries?
Yes, we specialize in auto injury rehabilitation including whiplash, neck/back pain, and soft tissue damage with personalized recovery plans.
Are X-rays available on-site?
Yes, we offer in-house digital X-rays for immediate diagnosis and treatment planning of spinal conditions and injuries.
What insurance do you accept?
We accept most major insurance plans including auto accident coverage and work with you to maximize your chiropractic benefits.
Is there 24/7 emergency availability?
Our office provides 24/7 emergency care for urgent chiropractic needs with immediate appointment scheduling for acute injuries.
How long are treatment sessions?
Initial consultations last 45-60 minutes with follow-up sessions typically 15-30 minutes based on individual treatment plans.
Videos
Reviews (20)
Jeff McDonough
May 09, 2022 Report
Dr. Aaron Casselman and his entire staff are polite, professional, knowledgeable, and helpful. We've been receiving treatment at Pinnacle Chiropractic and Spinal Rehab Center of Highlands Ranch for more than a year and have had a great experience.
Kimber Daley
Mar 08, 2022 Report
Doctor Casselman is amazing! I just compared my before and after treatment X-rays and I am so pleased to see the difference in the curve of my spine. I have significant pain improvement as well. His entire staff is friendly and courteous. I highly recommend this practice!
Guy Kowalski
Feb 21, 2022 Report
Nice guy. Dr. Casselman is genuinely cares about his patients. Staff is particularly sensitive to your needs, and is very friendly. I had a good experience with posture issues and got real results. I would recommend him.
Mike Loseke
Feb 05, 2022 Report
I had the pleasure of seeing Dr. Casselman and Pinnacle Chiropractic for the last few months while doing some physical therapy. This was one of the best experiences I have had. Dr. Casselman was so knowledgeable and really helped my get back to feeling better. The staff was always so friendly and welcoming. I would recommend anyone and everyone see Pinnacle Chiropractic. I will be coming back for routine adjustments.
Michelle Baustian
Jan 23, 2022 Report
Dr. Casselman and his stuff are absolutely wonderful, caring, and so kind! I was having pain in my back and neck which was causing horrible migraine. Dr. Casselman met with me and we discussed my treatment plan, he let me know up front what everything would cost. He is very knowledgeable I would recommend him to anyone and everyone.
Designs Inspired By You
Dec 26, 2021 Report
Our chiropractor retired and I found Pinnacle online. I was impressed with all the reviews and awards. My daughter and I have been seeing Dr Casselman for about 2 months now and we love the whole office. I like the in depth information he has been able to give both of us.
Erin Long
Dec 04, 2021 Report
I've been in a few car accidents over the last 4 years and had such bad back and neck pain it would bring me to tears. I tried to see other physical therapist and chiropractors but none seemed to really care for finding the actual problem. With Pinnacle chiropractor I'm actually getting results from my treatments, I can't believe how much better I feel from day to day. This Doctor actually cares about his patients.

The staff there is welcoming and encouraging which leads to such a relaxed and inviting atmosphere I actually look forward to seeing all of them every visit! They also have a small play area for kids as well so no matter the situation they've got you covered!
Tracy Weir
Dec 02, 2021 Report
I have been a patient of Pinnacle off and on for a number of years. My profession requires sitting in a chair for hours on end for multiple days in a row. After a while the neck issues, back issues, arm issues start to creep back in. I make a call to Dr. C, and he knows immediately what the issue is and sets a treatment plan in motion. The staff is always friendly and professional. Dr. C gets me back to a good place to be able to continue working again. I am grateful for the office. They keep me going! Thanks ACDC and crew!
David
Nov 21, 2021 Report
Walking into Pinnacle is like walking into the Cheers bar - it's where everybody knows your name, and you're always glad you came. Staff is exceptionally friendly - I'm regularly greeted (by name) in the office by staff I've never actually interacted with. Dr Cassleman does a fantastic job with treatment plans and monitoring progress, making adjustments to his adjustment plan, and managing expectations.

Of course, the success of your treatment plan is based on a team effort. and the patient is a part of that team (which Pinnacle wholly embraces). Coming in with feedback, detailed notes, and a general awareness of how your body is responding to each session makes a world of difference
Annika Walker
Feb 01, 2019 Report
Very friendly and definitely know what they are doing. I feel even better now than I did before my car accident! I want to thank all of you who worked there at the time I was your patient.
Angela Anderson
Aug 10, 2016 Report
Dr. C and his staff are the Best! I was very skeptical about going, but Dr. C has done wonders with my neck and back! Very helpful in diagnosing an issue with my neck and head that my primary care physician had overlooked. They are also very family friendly. My three kids spend the time playing with their legos! Great staff! Great Doc!
Melanie Zanini
Apr 03, 2014 Report
I started going to Pinnacle a year ago. My life has changed so dramatically in that amount of time. Dr. Casselman is super knowledgeable about general health as well as chiropractic care. My chronic neck pain and headaches have significantly improved. He has given me so much advice on diet and healthy habits as well. Thank you Dr. Casselman!
Rob Young
When I went to Dr. Casselman I had been in a lot of pain for some years. He took some time to understand what was wrong with me. He sent me in the right direction to get help for my back. He is a honest man and really cares about people. Easy to work with and helpful. I will send friend and family to him if they need care.
Braeden Miguel
Was shopping around to different chiropractics in the area and the introductory deal was what initially caught my eye. After going though I would recommend them just because of the quality of service, care, and information they have. During both visits I have had so far they were willing to answer any questions I had, explain to me different treatment ideas for my pain, and work with my schedule and circumstances for the next visit. Would suggest them!
Austin Mindock
After having read many reviews of Pinnacle Chiropractic I decided that I would give them a shot. I first arrived with severe neck pain and in desperate need of some relief. Dr. C provided just that! I have been to many doctor offices in the past but none as professional and caring as the staff at Pinnacle Chiropractic. After my consultation I was given a personalized treatment plan and the neck pain I was experiencing had quickly disappeared within the first few visits.

Also I never knew going to a doctors office could be so fun! I would highly recommend Dr. C and his professional staff to anyone who is suffering from pain. Seeking treatment with Dr. C was the best medical decision I have ever made.
Garnet Sourour
I moved to CO in 2014 and needed a new chiropractor. My husband saw Dr. Casselman's practice listed and recommended I contact him. Since I come from a background of traditional chiropractic, I didn't think I needed X-rays, but three years later I had issues that needed a look via X-rays. Dr. Casselman and I have had a few good laughs over this, but I can admit he was right and I am thankful that he worked with me in spite of my resistance. I am happy to encourage potential new patients his direction, as he and his staff are all very professional and caring. They all are a great bunch of people who work to bring you into better health.
Jordan Mathews
Dr. Casselman and his staff truly took the time to see my treatment through to the end. On the other side of his treatment/rehab programs, I walked out of his office feeling like I had my life back. It's invaluable to have people like them standing behind you when you're facing an injury you never thought you'd have at age 25. I highly recommend giving them a shot, you won't be disappointed.
Dustin Cantwell
My lower back was in bad condition with scoliosis causing sciatica prior to having treatment here. I was scheduled an effective plan that had a wide range of methods and treatments. The methods and treatments included, decompression of spine, having the chiropractor make spinal adjustments, use electronic device to stimulate the process of healing, exercise, massage, etc. Very effective treatment and feeling much better
Andrew
Dr. Casselman did a great job of explaining the diagnosis and setting up a treatment plan for relieving my neck pain and hand numbness. The treatments were successful in relieving these symptoms. He reviewed the results including improvements in range of motion and set up a long- term AT HOME maintenance program. I would highly recommend Dr. Casseman for anyone with chronic neck or back pain. He takes a very professional approach and explains the pateints situation very well. I was a bit skeptical coming here but my fears quickly subsided when I walked in the door.
Heather P
I was involved in a Motor Vehicle Accident and had suffered severe pain for the past year. After seeing multiple doctors and physical therapists, a co-worker referred me to Dr. Casselman's office. In the short time that I have been in treatment, I have seen such a significant difference. He has relieved so much of my pain and I am healing so much faster than I thought possible! Great doctor, great staff, and great facility!