(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.

Dr. Imari Heavens, PT, DPT

Physical Therapist

Dr. Imari Heavens graduated from Marymount University's Doctor of Physical Therapy program in May 2021. She has experience working with orthopedic injuries and special neurological populations with her past clinical experience focusing on populations of middle aged to older adults.

Imari has a true passion to see her patients succeed, and continues to embody a patient centered mindset during each treatment session. She is an ultimate team player and continues to benefit from collaboration and feedback with her team.

She is always seeking new opportunities to advance her skill and knowledge to improve her patients quality of life and return to performing activities that they enjoy by using a specific, individualized plan of care for each patient seen daily.


  • Sports / Orthopedic injuries

  • Post-op

  • Stroke/SCI/MS


Imari loves to travel, hike, stay active, and try out new restaurants with friends and family during her free time!

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

Colin Wakeman MS, LAT, ATC

Certified Athletic Trainer

Colin Wakeman started out pursuing a bachelor's degree in athletic training at James Madison University (JMU). During his studies, he had the pleasure of working with the JMU women's soccer, baseball, and football teams, as well as a local high school in the Shenandoah Valley area.

After graduating from JMU's athletic training program in 2019, he then went on to attend Marshall University (MU) where he acquired his master's in exercise science with a concentration in athletic training. While at MU he worked as a certified athletic trainer for their Center for Wellness in the Arts. This included coverage and consultation for MU's theatre performers, marching band performers, music majors, and faculty.

During his master's studies, Colin completed his thesis on the prevalence of musculoskeletal injuries within the center for wellness in the arts at Marshall University. After graduating from MU in 2021 Colin returned home to Northern Virginia and joined the Fusion team in May 2021.

Colin strives to help patients and clients realize their own potential and capabilities to help accomplish their own set goals. Whether that includes improving their day-to-day life or striving to compete at a high level of competition. He hopes to be a helping hand along their journey.


  • Certified Athletic Trainer, National Athletic Trainers' Association


  • Sports / Orthopedic injuries

  • Post-op

  • Post Concussion

  • Sports Performance

  • General Health & Fitness


In Colin's free time he loves being active and enjoys playing recreational sports such as ice hockey, golf, and softball.







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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