Liesa is a licensed physical therapist with 34 years experience in the field of adult & pediatric therapy. Dr Ritchie is a consulting physical therapist at Tulsa Sunshine Center in Oklahoma.

Additionally, Liesa is owner of Know to Change, PLLC, an organization dedicated to advancing the knowledge & skills of clinicians in pediatric practice. Both nationally and internationally, she has educated health care professionals in advanced treatment techniques, performed specialized practical training and provided consultative services. She has worked in a variety of settings, including private pediatric and adult clinics, schools, private homes, hospitals and long-term care facilities, as well as facilities abroad.

Believing it is important to share knowledge, Liesa is also a Credentialed Clinical Instructor, teaches human anatomy, physiology and nutrition, and is adjunct faculty at Southern Nazarene University. She received her Associate’s Degree from Tulsa Junior College and worked as a physical therapist assistant while completing her Bachelor of Science Degree in Organizational Leadership. After earning her Master’s Degree in Physical Therapy from the University of Findlay, Liesa continued to expand her expertise in the field. She received her post-graduate Doctorate from Rocky Mountain University of Health Professions, is a Certified Kinesio Taping Practitioner and achieved recognition as a Board Certified Specialist in Pediatric Physical Therapy. Her research interests are toe walking and the development of gait. 

Liesa’s wide range of clinical experience, proficient teaching skills, motivation to improve the standard of care, & enthusiasm & passion for her field, make her an exciting and compelling instructor.