Meet the Team

About James

James Kim is a proud Maryland native, raised in Baltimore County and now living in Harford County with his wife, Lauren, their daughter, Natalie, and their son, Owen. Family is at the center of everything he does — and it’s a big reason why he built Cardinal Performance & Therapy with the same level of care he would want for his own kids.

With more than 15 years of experience as a physical therapist, James has worked with athletes of all ages and levels. His passion lies in helping youth athletes grow safely, understand their bodies, and reach their full potential — not just through drills, but by teaching the why and how behind movement. He brings that same commitment to weekend warriors and active adults, guiding them to move better, recover stronger, and continue doing what they love.

At the heart of his work is a simple philosophy: movement is medicine. Whether it’s on the field, on the ice, or in everyday life, James is dedicated to helping people unlock strength, resilience, and confidence that lasts a lifetime.

Quote he lives by:
"The most important thing is to try and inspire people so that they can be great in whatever they want to do." – Kobe Bryant

About Joseph

Joseph Federline is a family man, a husband to his wife, Jamie, and a proud father to their son, Ryan, and daughter, Lucy. He believes that the values of family, hard work, and resilience carry over into his professional life and into the way he cares for his patients.

With over 20 years of experience as a physical therapist, Joseph has helped thousands of people return to what matters most in their lives. From athletes recovering from injury to adults seeking to move without pain, he has dedicated his career to guiding people toward not only recovery, but also a renewed sense of strength, confidence, and purpose.

Joseph’s approach goes beyond treatment — it’s about motivation and empowerment. He sees every patient as an opportunity to restore not just physical ability, but the freedom to live fully. His belief is simple: when people move better, they live better.