ABOUT US

physical sports therapist

Leaping forward to revolutionize the industry of Sports Physical Therapy and Performance.



We are Movement and Sports Performance Specialists helping everyone from professional athletes to weekend warriors return from injury or improve their performance in their sport.

There are no cookie cutter approaches or generic rehab protocols at Quantum Performance. We work 1 on 1 with you, combining cutting edge technology and a holistic approach of various techniques and rehab schools of thought backed by up to date research, to deliver a highly personalized and effective plan to help you recover and return you to performing your best.

At Quantum Performance, we provide you with the guidance and the insight you need to find the source of your injury or drop in performance. Through our testing and assessments we can find specific and effective interventions to not only ensure you can perform but also reduce the likelihood of injury as well.

Come and see how we have helped countless athletes in the NBA, EPL, MLS, NFL, and many other professional leagues recover from injury and perform at their best.


Our World-Class Performance Coaches

sport fit physical therapist

Andrew Barr, DPT | PT | MSC | CSCS
Founder and CEO


Andy is the founder of Quantum Performance. A native of the UK, he started his career as a professional football (soccer) player with Luton Town F.C. but his career was cut short by injury. Driven by his passion to help other athletes avoid injury and maximize their performance potential, he studied a Physiotherapy degree. Andy holds a BSc in Physiotherapy, an MSc in Sports Science, and a Doctorate in Physical Therapy.

At Quantum Performance, he works with athletes and teams from the NBA, NFL, EPL, UEFA, MLS, PGA, and Olympics. Athletes travel to his high-performance facility in LA for off-season work, biomechanical testing, or for injury rehabilitation.

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Dr. Ruben Gonzalez, PT, DPT
Director of Physical Therapy


Ruben graduated with his B.A. in Biology from the University of Redlands and then went on to receive his Doctorate in Physical Therapy from the University of St. Augustine for Health Sciences. During his time at the University of St. Augustine, Ruben under went extensive training in various manual therapy techniques. Ruben has also gone through extensive continuing education through EXOS, the Institute of Clinical Excellence, Owens Recovery Science and many others to continue to improve his expertise in the field of Sports Physical Therapy and Sports Performance.

At Quantum Performance, Ruben has worked with athletes from the NBA, WNBA, EPL, and NFL. As the Director of Physical Therapy, he helps organize and manage the care for all athletes that come through Quantum Performance. In addition to directing the plan of care for athletes he is also working as a consultant to NBA players, traveling to their respective markets, and helping them stay healthy throughout their season.

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Dustin Willis, PT, DPT, OCS, TPS , FAAOMPT
Doctor of Physical Therapy
Orthopedic Clinical Specialist
Therapeutic Pain Specialist
Fellow of the American Academy of Orthopedic Manual Physical Therapists


Dustin graduated with his Bachelor of Science (BS) in Exercise and Sports Medicine with an emphasis in Human Performance from California Lutheran University. He then went on to receive his Doctor of Physical Therapy (DPT) from Loma Linda University & after graduating,completed the Orthopedic Residency Program. He then underwent more advanced training by completing Kaiser Permanente Southern California's Sports and Manual Therapy Fellowship, the Lower Extremity Biomechanics Fellowship at the Movement Performance Institute, & Azusa Pacific University's Movement Performance Fellowship. All of this led to him becoming distinguished as an Orthopedic Clinical Special ist (OCS), a Fellow of t he American Academy of Orthopedic Manual Physical Therapists (FAAOMPT), as well as a Therapeutic Pain Specialist (TPS). Dustin is currently working on becoming a Certified Applied Functional Science Specialist (CAFS) through the Gray Institute, an EXOS Performance Specialist, & finishing up his PhD in Rehabilitation Sciences back at Loma Linda University.

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Alan Hsieh, MS, CSCS, CES , MSOL (Expected 08/ 2021)


Alan Hsieh is a specialist in the field of sports performance and injury risk reduction. He ha s a diverse experience that has improved the athletic performance of a variety of highly competitive professional sports organizations and individual athletes from the NBA, UFC, CBA, CPBL. He is the founder of Science of Performance, LLC (sop4pro.com ) with the mission to bridge the gap between English and Chinese-speaking professional athletes . Recently, held the role of Director of Strength & Conditioning at Chinatrust Brothers Baseball Club, his application of evidence-driven science and cutting-edge technology has helped the team change their approach to training . Currently, he is based in China with a CBA team for performance rehabilitation . His full education background includes a Bachelor of Science, Exercise Science and Sport Studies from Rutgers University and a Master of Science in Exercise Physiology from William Paterson University. He continues his education by pursuing a Master of Science in Organizational Leadership, through the University of Colorado Boulder.

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Jason Pinili, DPT CSCS

Jason has over 4 years of experience in orthopedic and sports physical therapy, with heavy experience with high level basketball at the youth, high school, college, and NBA levels. After graduating from the University of Miami’s Physical Therapy program where he worked with all varsity sports, Jason moved back home to Los Angeles where he began his career in orthopedic and sports outpatient care. Jason has continued to develop his clinical skills along side several skills and strength and conditioning coaches to offer sport specific clinical care to his patients and athletes. His hobbies include surfing, basketball, and tennis.

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