(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.

Dr. Mabel Castellanos, PT, DPT, MS

Clinic Director - 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

  • Selective Functional Movement Assessment (SFMA) Level 1

  • Advanced Cardiac Life Support (ACLS)

  • Dry needling level 1 - Evidence in Motion


  • 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.

Andrew McNutt LAT, ATC

Certified Athletic Trainer

Andrew began his career at James Madison University where he pursued his bachelor's in Athletic Training. During his time at JMU, he was fortunate to work with Men’s soccer, volleyball, football, and Eastern Mennonite University.

After graduating from Madison in 2019, Andrew went on to work as an intern Athletic Trainer at Binghamton University where he would work with their Track and Cross-Country Programs.

After his time at Binghamton, Andrew joined the team at Fusion in June of 2021. Andrew is passionate about being able to help people take control of their health by teaching them how to overcome their injuries so they can be successful in the activities they enjoy.


  • NATA Certified Athletic Trainer

  • Myofascial decompression Level 1


  • Sports / Orthopedic injuries

  • Post-op

  • Post concussion

  • Sports performance

  • General fitness

Justin Becker, PTA

Justin received his Physical Therapist Assistant degree in 2017 from Herkimer College in upstate New York. He has worked for several years as a PTA at a similar outpatient facility in Albany NY. Justin has a strong background in different sports and played some college football. He is originally from Texas, but has spent most of his time growing up around Richmond VA.

In the field, Justin has worked with a variety of orthopedic injuries with patients of all ages and he enjoys the problem-solving aspect that Physical Therapy can provide. He enjoys meeting new people and hopes to add more specialized certifications to his resume soon.


  • Sports Injuries

  • General Orthopedic Injuries

  • Post-op


Outside of Physical Therapy, Justin enjoys working out, real estate investing, and traveling when possible. Fun fact, Justin also works part-time in sales for a home improvement company in VA.







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

Copyright © 2023 Fusion Physical Therapy and Cardiac Rehabilitation LLC.

All rights reserved. Terms of Use and Privacy Policy