Meet the Doctors of Performance Plus
Dr. Allyn Smith
Founder of Performance Plus, Doctor of Chiropractic
Dr. Allyn Smith is regarded as one of the most sought-after Chiropractic Care physicians in St. Joseph, MO and Cameron, MO. He is a representative of the Missouri State Chiropractic Physicians Association and maintains active membership in the American Chiropractic Association. Dr. Smith is also an advocate and public speaker on topics of health, wellness and stress management.
After graduating from Northwestern Chiropractic College in Minneapolis, Minnesota in 1991, he started ‘Smith Chiropractic and Rehabilitation’ in St. Joseph, MO in 1993. In 1997, Dr. Smith developed the technique of combining physical therapy with chiropractic care for a total care approach and transformed Smith Chiropractic into Performance Plus Rehabilitation Center in 2001.
Dr. Smith not only promotes a healthy lifestyle, but practices the same principles in his own life. He is a former All-American Honors Triathlete and has competed in hundreds of races, including triathlons, cycling, mountain biking and running. His family also embodies a lifestyle of health and wellness. His daughter, Holland, is formerly an Elite Junior USA Triathlete and is currently a model/actress in New York City. His son, Caleb, is a former athlete and currently serves as an Army Ranger with the 75th Ranger Regiment. His wife, Pamela, is a former All-American Honors Triathlete and an award-winning runner.
Dr. Smith's vision for Performance Plus is to help improve the function and quality of life for residents of St. Joseph, MO, Cameron, MO and surrounding areas.
Dr. Aaron Jones
Physical Therapy Director, Doctor of Physical Therapy
Dr. Aaron Jones has been with Performance Plus Rehabilitation Center as the Physical Therapy Director since 2008. Dr. Jones was trained at Missouri State University and graduated with his Doctor of physical therapy degree. His professional interests include treatment of sports injuries, shoulder injury/dysfunction, and complex neurological conditions including stroke, spinal cord injury, and Parkinson’s Disease.
His personal interests including hiking, weight training, and woodworking. As a family the Jones’ stay very active and try to instill a healthy lifestyle into their children’s’ lives.
Dr. Jones does try to lead by example and encourage his patients to remain active and healthy at all stages of life.
Dr. Joshua Middendorf
Doctor of Chiropractic
Dr. Joshua Middendorf was born and raised on a farm in northeast Missouri and went to Northwest Missouri State University where he received his bachelors in Science and met his wife who is from St. Joseph. He earned his Doctor of Chiropractic degree at Logan College of Chiropractic in Chesterfield, MO. He and his wife currently reside in the countryside of Stewartsville where they have three adopted children.
Having had his own chiropractic office for 5 years he has been elated to have the opportunity to work at Performance Plus. It has provided him the opportunity to work alongside physical therapists, in a wonderful facility, to provide the best care in Northwest Missouri since 2016. He truly believes in the synergy of chiropractic and physical therapy and has seen it make a life changing impact in thousands of patients.
Dr. Derek Kendall
Doctor of Physical Therapy
Dr. Derek Kendall was born and raised in St. Joseph, Missouri, where he attended and graduated from Benton High School in 2013. Derek went on to graduate in 2017 with a Bachelor’s in Science degree in Exercise and Movement Science from Missouri State University in Springfield, Missouri. He then completed his Graduate coursework at Rockhurst University in Kansas City, Missouri, where he earned his Doctor of Physical Therapy degree in 2021. Derek has been with Performance Plus since August of 2021.
In his free time he enjoys golfing, outdoors activities and lifting weights