Our Two-Prong Mission

LEVELING THE PLAYING FIELD for aspiring athletes and pro sports practitioners.

Many young athletes and aspiring sports practitioners all dream of one thing- going pro. As a company composed of established sports professionals who have worked with players and management teams for players in the NBA, UCLA, The Premiere League, and World Olympics, we know what it takes to “go pro.” And we want to help the dreamers make those goals a reality.

BUILDING A COMPETITIVE EDGE for professional players.

There’s no question that professional athletes love the game, prioritizing their physical health above all else so they can stay optimal and stay in the game for a very very long time. We help players achieve that by helping them understand their bodies better and building programs to help them stay healthy and optimal.


Our World-Class Performance Coaches

Andrew Barr, DPT | PT | MSC | CSCS
Founder + 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 for a Physiotherapy degree. He 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.

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 underwent 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. 


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 Specialist (OCS), a Fellow of the 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.

Dr. Isaac Auyeung, PT, DPT, OCS, CSCS

Isaac grew up in NorCal but moved to sunny Southern California for college and grad school. He has a passion for learning and took over 300 hours of continuing education before even finishing physical therapy school, including being recognized as an EXOS Performance Specialist and Certified Strength and Conditioning Specialist. After earning his Doctorate in Physical Therapy, he completed a year-long orthopedic residency program through Kaiser Permanente and became recognized as a board-certified orthopedic clinical specialist. During residency, Isaac went out of his way to pass rigorous testing and examination to receive his Certification in Spinal Manipulative Therapy. He is also passionate about using his knowledge to help his community and has volunteered on the medical team with AVP pro beach volleyball, the Lei-Out ultimate frisbee tournament, South Bay Dozen ocean racing event, and an international hip-hop dance competition.

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 has 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.