Your body is designed to heal itself naturally. We’re here to help.

Our mission is to help people live healthy, pain free lives through consistent chiropractic care. We’ve been serving the community of Killeen with that mission since 1949.

We’re a family-focused clinic.

We offer treatment to the youngest and oldest members of your family, and everyone in between. We have treatment plans to meet the needs of adults, children, prenatal, and elderly.

We educate you on your care.

You play a critical role in your own healing process, and we believe in providing the education you need to take charge of it. In addition to the treatment you receive in our office, we help you learn how to make adjustments in your everyday life to stay healthy and pain-free.

A natural alternative to medicine.

If you’re tired of an endless cycle of medication to manage your pain, chiropractic care is an effective and safe alternative. We can help you address the underlying cause of your pain and get back to a healthy, active lifestyle naturally.

Meet the team

Dr. Scott

Dr. Scott was twelve years old when he discovered he wanted to be a Chiropractor. “I remember sitting around as a family and hearing Dr. Sid (my dad) telling us with such enthusiasm of the miracle-like results his patients had gotten through chiropractic care. I cannot imagine doing anything else but Chiropractic”.

He joined the clinic in August of 1975, having inherited his father’s passion for the work.

When Dr. Scott is not in the Clinic or enjoying time with his family he spends his free moments woodworking, reading or going on hunting trips.

Dr. Shawn

Dr. Shawn Isdale was born in Killeen, Texas and is the youngest of five brothers, three of which are also chiropractors.

He graduated from Killeen High School in 1978, attended SWTSU, and then went on to Texas Chiropractic College in Pasadena, Texas, where he graduated in 1984 with a Doctor of Chiropractic degree. He then joined the practice with his dad, Dr. Sid and brother, Dr. Scott, in March, 1985.

Fun fact: the Isdale family has a unique five generation tradition where each have the initials S.E.I. (they have had to get creative with some of the names!)

Dr. Stan

Dr. Stan Isdale grew up in the Killeen area and attended Killeen High School before going on to graduate from Parker University in Dallas, Texas in 1990.

Like his brothers, he became interested in chiropractic from not only seeing the amazing results of his father’s patients, but hearing them say how chiropractic had changed their lives by improving their health when all else failed.

Dr. Dallas

Born and raised in Killeen, Dr. Dallas Johnston is the youngest of three kids and learned early on the importance of discipline, dedication and drive as both of his parents were military. Following in his family’s footsteps, he dreamt of serving his country, but wasn’t sure exactly how he would do that. He served in the Marine Corps, where he studied undergrad, and not long after he was released from service he met his fiancee whose father was a chiropractor. After seeing how many lives his father-in-law had touched and healed, he knew what his true life calling was – chiropractic. He went on to Parker University in Dallas, TX and enrolled in the Doctor of Chiropractic program in the fall of 2013. It was then that he discovered the power of the body’s nervous system and our innate ability to heal.

Ms. Jeanne

Business Manager


Chiropractic Assistant


Chiropractic Assistant


Chiropractic Assistant


Chiropractic Assistant


Chiropractic Assistant

“Dr. Dallas, Dr. Shawn, Dr. Scott and Dr. Stan are the best in the business. They are very professional and thorough, which you won’t find at every clinic. Their staff is knowledgeable and makes sure to get you in and out in a timely fashion. Would highly recommend them for any neck or back issues.”

“And the absolute best part, getting adjusted!! I’ve been adjusted by all the docs here and they all get me moving and functioning great! My mile time has dropped, my gait has improved and my posture is so much better! Thank you!”

Better health starts today.

Schedule an Appointment

During your first appointment, we’ll conduct a consultation and examination to determine what’s wrong and create a treatment plan to help you recover and reduce pain. 

Follow your treatment plan

Your treatment plan will be designed to address your specific needs and will include in-office treatment as well as changes you can make in your everyday life to support your recovery.

Enjoy an active, healthy lifestyle

Get rid of pain, reduce your need for prescription pain medication, and get back to enjoying your life.