Our Story
From Bossier City to Beyond: The Ark-La-Tex Authority in Work Capacity & Disability Management Since 2010
Founded in 2010, Functional Capacity Experts has established itself as Louisiana's Work Capacity and Disability Authority. Since that time, we've served the Ark-La-Tex region from our Bossier City clinic, providing evidence-based functional capacity evaluations and occupational health services that help professionals make confident, defensible decisions.
What began as a specialized practice focused on functional capacity evaluations has evolved into a comprehensive occupational health center serving eight distinct professional audiences across Louisiana, Arkansas, Texas, and beyond. Our reputation for excellence has brought clients to us from as far as New Orleans, Dallas, and even Colorado—a testament to the quality and credibility of our work.



OUR Mission
Transforming Uncertainty into Clarity
When professionals face complex questions about work capacity, disability, or occupational health, we provide objective, scientifically-validated answers that hold up under scrutiny. Our evidence-based approach replaces subjective opinions with defensible data, giving attorneys, physicians, case managers, and employers the confidence to make critical decisions
OUR VALUES
Who We Are

Objectivity Above All
We deliver unbiased, evidence-based assessments regardless of who's paying the bill. Our reputation depends on credibility, and credibility requires independence.

Scientific Rigor
Every evaluation follows validated protocols and best-practice guidelines, ensuring each finding is defensible and grounded in evidence-based methodology rather than subjective opinion.

Professional Partnership
We understand the pressures our clients face—deadlines, scrutiny, high stakes. We respond promptly, communicate clearly, and deliver reports that actually answer their questions.

Continuous Excellence
The field of functional assessment continues to evolve. We stay current with research, technology, and best practices to ensure our clients receive the most advanced, accurate services available.
Meet Our Leaders
Behind every defensible report and objective evaluation is a team led by nationally-recognized expertise and operational excellence.

Steve Allison, DPT, CME
Dr. Steve Allison is CEO and managing partner at Functional Capacity Experts, LLC. He is a Doctor of Physical Therapy (DPT), and he has been licensed to practice in Louisiana since 1993. He was the lead author of the FCE Evidence-Based Best Practice Guidelines adopted by American Physical Therapy Association (APTA) Orthopedic in 2018, and he co-authored a monograph on Functional Capacity Evaluation and Disability Determination published in 2022 by APTA Orthopedic in 2022. He has also published and/or participated in numerous other articles and a Clinical Practice Guideline (CPG) related to FCEs, functional job analysis, functional test validation, and work participation. He has been accepted as an expert witness in various Federal and District court jurisdictions in Louisiana and Colorado as an expert in FCEs, functional job analysis, functional test validation, and orthopedic physical therapy.

Derek Harper, PTA
Derek Harper is an associate partner and licensed physical therapist assistant at Functional Capacity Experts, LLC. He has been licensed to practice in Louisiana since 2003. He is a Bossier City native, graduating from Airline High School and Bossier Parish Community College. His primary focus of practice has been occupational health. He is certified in functional job analysis, functional testing, DOT drug screen collection, and as a Breath Alcohol technician. He enjoys spending time with his family, bass fishing, and rooting for the LSU Tigers!
