Physical Therapy + Chiropractic in Chattanooga

Dr. John Fee and Dr. Kelly Mueller

Our Story

We’ve lived a story that’s all too common.

We were both high school athletes with dreams of playing in college—until preventable injuries sidelined us and snowballed into something bigger. We know how frustrating it is when your body holds you back from doing what you love. We get what it’s like to want to keep going, not get shut down.

After college, we each worked in corporate settings—Johnny in safety and risk management, and Kelly in injury prevention, including time spent in an industrial environment. Those roles shaped our passion for proactive care and laid the foundation for our clinical careers.

We both started out in larger healthcare systems, but quickly became frustrated by the assembly-line approach that often prioritizes volume over quality. That’s not why we got into this field. We wanted to work with people, not numbers. We wanted to help clients make real, lasting progress—not just get by.

So, in 2022, we started our own practice—Key to Change Wellness. A place focused on sustainable performance, injury prevention, and corporate wellness. A place where your goals come first, and your long-term wellbeing is the priority.

Welcome to Key to Change Wellness.

Let’s unlock your next level—together.

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Fletcher – Our Key to a Warm Welcome

Testimonials

  • Close-up of a dark textured surface, possibly a stone or concrete wall.

    Best PT/Chiro I’ve been to! Literally see them once a week as I’m constantly pushing my body. (Training for a marathon & tennis) Really impressed with how Johnny customizes what I need each visit. He makes sure to hit problem areas and proactively works other area that are weak points to prevent future issues. If you are on the fence, don’t be. You won’t find a better provider in Chattanooga.

    Charley

  • A dark, textured surface with subtle variations in shading, resembling a black or dark gray material.

    Ive been seeing Kelly and Johnny for about 2 years now and I cant say enough good things about them!! They have not only helped me with my chronic knee pain but also with the aches and pains that come with pregnancy and postpartum! They really listen to you and try to fix the problem at the root and not just a bandaid fix! Best PT and chiropractor I’ve ever had and just the best people to know.

    Makenna

  • Close-up of black, textured fabric with a subtle pattern.

    We at The L K Grant Company and personally have been dealing with Dr Kelly and Dr Johnny Fee at Key to Change for over a year now and I have personally seen and felt the difference with knowledgeable PT and chiropractic care. They come to our workplace and treat our employees and we've seen better feeling employees with proper preventative/needed care. The combined treatment between the both of them is excellent! We would recommend Kelly and Johnny thoroughly. Go see them at Key to Change Wellness!

    Luke

Dr. John’s Certifications & Skills

  • Safety and Risk Analysis

  • Work Environment and Ergonomic Evaluation

  • Nutritionist Certified through ISSA

  • Dry Needling Certified

  • IASTM Certified for Soft Tissue Mobilization

  • Injury Prevention

  • Disc Bulge / Herniation Recovery

  • Rotator Cuff and Impingement Retraining

  • Hip, Knee, Foot & Ankle Mobility

  • Board Certified Orthopedic Clinical Specialist

  • Dry Needling Certified

  • Vertigo Elimination

  • Vestibular Rehabilitation

  • Post-Concussion Care

  • Headache Management

  • Return to Physical Activity and Sport

  • Injury Triage and Treatment

  • Chronic Condition Management: EDS, POTS, MS, PD

Dr. Kelly’s Certifications & Skills

Unlock your next level.

Let’s See What’s Possible


Book a no-pressure call and we’ll talk through your goals, your challenges, and how we can help.

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