(571) 659-2612

Fusion Physical Therapy

12731 Marblestone Drive, Suite 202 Woodbridge, VA 22192

The Fusion Physical Therapy Team

About us:

Fusion Physical Therapy and Cardiac Rehabilitation is unique in that it offers many varieties of Physical Therapy and includes Athletic Training. We have Physical Therapists who specialize in different treatment techniques that are hard to find in the outpatient physical therapy world. This includes dry needling, post concussion and vestibular rehabilitation, cardiac rehabilitation, and golf performance through Titleist Certifications. This clinic is also unique in that it has Athletic Trainers that work with our Physical Therapists. Each patient will see a Physical Therapist for the evaluation and all manual therapy techniques. Once the Physical Therapist has completed manual therapy you will then continue your one on one treatment with an Athletic Trainer who will help you gain strength, mobility, and teach you functional movements that are geared towards your goals. This business model is rare because it offers one on one treatment throughout the entire appointment and is all focused on what you want to achieve.

Fusion Physical Therapy and Cardiac Rehabilitation is owned by Lake Ridge Physical Therapy. https://lakeridgephysicaltherapy.com/

What We Offer:

Unique one on one treatment with Physical Therapists and Athletic Trainers that includes manual therapy, dry needling, and functional exercises to work towards achieving your goals.

We treat varying conditions including orthopedic injuries, post op, vestibular and post concussion, cardiac, neurological conditions, and sports performance.

Trevor Stewart, PT, DPT, ATC

Clinic Director – Physical Therapist

Dr. Trevor Stewart graduated from Marymount University’s Doctor of Physical Therapy program where he developed problem-solving clinical skills and therapy techniques supported by scientific evidence. His love of sports medicine is complemented by dual degrees in Athletic Training and Physical Therapy, and an impressive work background. Trevor has experience working with all ages of athletic populations including high school, collegiate, and professional. Prior to joining our Fusion team in May 2018, he worked as a Certified Athletic Trainer at several universities, even spending three years with the Washington Redskins. Additionally, he is certified by Titleist Performance Institute and works with golfers to enhance their performance without injury. Trevor knows every patient, regardless of age or ability, strives to return to a specific level of activity and works with them to surpass their goals. He believes in the individuality of each patient, and that to be successful in rehabilitation you must look at total body biomechanics and movement patterns in order to decrease problem areas and return patients to optimum functionality.


  • Certified Athletic Trainer, National Athletic Trainers’ Association

  • Trigger Point Dry Needling Level I-II from Institute of Advanced Musculoskeletal Techniques (IAMT)

  • Selective Functional Movement Assessment (SFMA) Certified Level I-II

  • Titleist Performance Institute (TPI) Certified Level I-II


  • Sports / Orthopedic injuries

  • Post-Op

  • Vestibular and Post Concussion

  • Sports Performance

  • Golf Specialty


When not working with his patients, Trevor loves outdoor activities including fishing from his kayak on the river or snow boarding down the slopes in the winter.

Alex Cox, ATC

Certified Athletic Trainer

Alex Cox graduated from Radford University with a BS in Athletic Training in May 2017. After working with several sports teams at Frostburg State University, he joined Fusion in the Summer of 2018. He is currently working toward a Master’s Degree at George Mason University. Alex is a Certified Athletic Trainer and is licensed to practice in the state of Virginia. He has experience and enjoys working with all age groups. Fun Facts! In his spare time, Alex enjoys golfing and being active outdoors.


  • Certified Athletic Trainer, National Athletic Trainers’ Association

  • Licensed Athletic Trainer in the State of Virginia

  • Titleist Performance Institute Certified

Mabel Castellanos, PT, DPT, MS

Physical Therapist

Dr. Mabel Castellanos graduated from Marymount University’s Doctor of Physical Therapy program in 2018, after obtaining a Master of Science in Clinical Exercise Physiology from The George Washington University in 2013. She has a strong background in cardiac rehabilitation, and has experience working with people affected by different chronic and acute diseases. More recently, Mabel has been able to use her background as an exercise physiologist and a physical therapist to expand her exposure to a more diverse population. She has gained experience working with young athletes as well as treating sports and orthopedic injuries in people of all ages. Mabel has always had a passion for helping people of all backgrounds. She’s committed to help improve their quality of life and reach a level of function they are most happy with, whether it’s for everyday living, enjoying their hobbies or excelling in their favorite sport. She understands every person is unique and striving for different goals, making it important for her that each patient is very much involved in their own rehabilitation plan of care.


  • Certified Clinical Exercise Physiologist, American College of Sports Medicine


  • Sports / Orthopedic injuries

  • Post-op

  • Cardiac Rehabilitation


Mabel grew up moving around North/South America and is fluent in both Spanish and Portuguese. In her free time, Mabel loves to travel and explore new places.

Kieran Loving ATC, VATL, CSCS

Certified Athletic Trainer

Kieran Loving started his career in 2003 as a Physical Therapy Technician specializing in outpatient and inpatient Orthopedics, collecting data for academic research on Thoracic outlet syndrome and shoulder dysfunction in overhead athletes. After graduating from George Mason’s Athletic Training program in 2008, he spent the next decade working with Prince William County schools teaching and practicing Sports Medicine at the High School level. Kieran was part of a team of athletic trainers that developed and implemented strict concussion protocols and procedures for Prince William County during the time of state and federal legislative changes. Outside of the school system, he also been involved in numerous Sporting clubs and teams throughout the Northern Virginia area such as the Haymarket Senator Baseball Team, Northern Virginia Soccer Association, The battle of Bull Run Lacrosse Tournaments and multiple Basketball tournaments and camps. Kierans interests involve helping the military and public service community achieve their goals not only in fitness and rehabilitation but their abilities to perform their jobs at the highest level while preventing injury and work hazards.


  • Certified Athletic Trainer, National Athletic Trainers’ Association

  • Sports Nutrition Training

  • Pediatric Exercise and rehabilitation Training

  • K-12 Sports Medicine instructor

  • George Mason University Clinical Instructor

  • Rock Tape Certified


  • Sports / Orthopedic injuries

  • Post-Op

  • Post Concussion

  • Sports Performance

  • Military, Firefighters, Police, Pediatrics


Kieran spent most of his young life overseas before returning to the states for Middle and High School.







ONLY Open the 1st Saturday of each month



The following is for guidance only to help you plan your appointment with a therapist. It does not guarantee availability as the therapist may sometimes be attending to other duties.


The first step towards a healthy life is to schedule an appointment. Please contact our office by phone or complete the appointment request form.


Tel (571) 659-2612

Fax (571) 659-2619

12731 Marblestone Drive, Suite 202 Woodbridge, VA 22192

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