Dr. Aaron Casselman has been practicing as the owner of Pinnacle Chiropractic in Highlands Ranch for 15 years.  He grew up in the Boston area and moved out to Colorado in the 1990’s to live the “Colorado lifestyle”. Dr. Casselman enjoys skiing, mountain biking and camping.  He started his career as a wildlife biologist but then switched to people 🙂 due to his drive to help people with health issues in a more natural and comprehensive way.  He is married to his lovely wife Megan and has 3 children: Bodhi, Nina and Owen.


 Ashley is our morning receptionist here at pinnacle chiropractic. She enjoys her job because it allows her to meet and help many amazing people as well as be a part of a great team. In her free time she likes to enjoy the outdoors doing activities such as hiking or paddle boarding, working out, yoga, and spending time with friends and family.


You can spot Lynnea helping patients in the treatment room as our morning chiropractic assistant, and again in the afternoon as one of our receptionists! She’s always around to answer questions or assist around the office however she can. She’s a fan of horror movies and animals of any fluffy or scaly species, and when she’s not in the office she enjoys painting and reading.


Jennifer is an afternoon chiropractic Assistant and has worked in the healthcare industry for 20+ years.  She has a Certified Nursing Assistant license, Bachelor of Human Development, Certificate in Gerontology and Alzheimers Care.


Kim is one of our Health Coaches and also a bodysculpting LipoMelt tech. Her passion is helping people reach their goals. She grew up on the east coast and moved to Colorado in the 90s. She loves to spend time with her husband, two kids, two Boston Terriers, and two cats. Kim loves hiking, triathlons, and crossing finish lines. Kim is certified in the following: Integrative Nutrition Coach, Personal Training, Group Fitness, and Menopause Specialist.


Veronica joined the wellness field in 2010, and loves helping people achieve their goals. She is a certified Nutritionist and Health Coach, speaks 4 languages, and has lived in 6 continents. In 2022, she moved to Colorado. In her spare time she enjoys studying medicinal plants, mountain running and hiking with her Bernese Mountain Dog.


McKensie is an afternoon chiropractic assistant. Because of her passion for helping people, she graduated from Colorado School of Healing Art in 2023 and is on her way to becoming a licensed massage therapist. During her free time she enjoys spending time with friends/family and walking her two dogs.


Angel is one of our morning chiropractic assistants. When she is not helping patients at work, you’ll find her exploring parks with her bluenose pit. She also enjoys horror movies, sports, and trying new foods.