Learn what #Team COR is all about.


~ Legendary Coach Bill Bowerman

This simple quote summarizes our core philosophy at COR – everyone is an athlete at heart and everyone should have access to the elite level care like world-class athletes – whether you are a youth athlete, a weekend warrior, a busy executive, or an active senior.

COR was founded by Dr. John Mullen, renowned physical therapist, strength coach, and performance enhancement specialist who have worked with organizations such as Stanford, Purdue, and many other elite colleges.

After years of helping professional athletes return from injury, enhance their performance, and excel at their sport, he was determined to create a similar environment for the general public. Disappointed with the traditional physical therapy clinic and fitness environments, he sought to recreate the integrated sports medicine model used to enhance performance by creating a hybrid model of physical therapy, biomechanical assessment, adult fitness, and performance enhancement training in an environment that is suitable for all ages and activity levels.

With this he coined the company model, “making you better”. This is our company goal, each time you are at COR we are making you better, by helping you improve your strength, reduce your pain, or improve your life!

It is our vision to provide exceptional care that differs from traditional physical therapy clinics and fitness facilities by emphasizing a unique blend of elite level care, cutting edge systems, an individualized approach, and more personal attention to help you achieve your goals faster.

“Making you better”

To assure we achieve this mission, we base everything around three main principles:

1. Provide an Elite Level Experience

We provide elite level physical therapy, adult fitness, and sports performance for motivated individuals that are looking to do what it takes to perform optimally and get the most out of their bodies.
Our goal is to always be a center of excellence in regard to outcomes, satisfaction, research, education, and employee development.

We will maximize your outcomes through comprehensive assessment, program design, treatment, training, and coaching.

We always strive to exceed expectations and provide the most effective, safe, and research driven programs to achieve your goals.

We pledge to always provide cutting edge services and will continue to evolve as new technology and techniques become available. Our own personal focus is on education and expanding our skills. We never stop learning so you never stop advancing.

We will assure you get the care you need. We have a network of complimentary health care and fitness providers, including the top doctors in the area and across the nation. If you have any additional health and wellness needs, we can help coordinate the care you need from the experts we trust. This assures proper attention and communication for you best interest.

2. Emphasize individualized Care, Focus, and Attention to Detail

We provide exceptional individualized care to our patients and clients by giving you the personal time and attention to detail that you deserve.

We value an individualized approach to your program; we do not use cookie-cutter programs for all of our clients. This assures you get exactly what you need.

Our sessions are not rushed and our appointments are not overbooked.

We pride ourselves on spending one-on-one time with you utilizing a hands-on approach.

Our focus is on outcomes, culture, client experience, and client satisfaction, not revenue. We value your time and make a point to not waste a second of it.

3. Optimize Health and Performance Through an Integrated Approach to Rehab and Fitness

Through our integrated rehab and fitness, we are capable of providing an entire approach to health and wellness that assures you get the care you need.

We can help you recover from injuries or surgery, lose weight, get stronger, and perform better.

We will guide you through the injury process and help you return to optimal health and wellness, not just back to baseline.

Our integrated team assures that we are always communicating and collaborating to help you achieve your best.

Everyone is an Athlete at Heart

Our main driving principle can best be said through a quote from legendary track coach Bill Bowerman:

“If you have a body, you’re an athlete.”

That simple quote summarizes our core philosophy and vision at COR – everyone is an athlete at heart. It doesn’t matter what your current health and fitness levels are, our bodies were built to move and perform. If you focus on enhancing how well you feel and move, you can perform at your best.

All of our patients and clients are treated like world-class athletes, from youth athletes, to weekend warriors, to busy executives, to Olympic Athletes.

Traditional Physical Therapy and Fitness Models are Not Providing the Best Care Possible

The changing healthcare system has caused a reduction in quality of physical therapy in which PT’s treat symptoms and not the underlying cause, over-utilize modalities without good evidence, and provide unsupervised exercises that are too often delegated to lesser-qualified support personnel. People are rushed through appointments, hands-on time is reduced and often non-existent, while your PT is trying to help too many other patients at the same time. Insurance companies are dictating the services you receive, not your healthcare provider.

Meanwhile, the fitness industry has exploded, resulting in a diluted market that has caused a reduction in quality of fitness and performance training. Boot camps and group strength training programs are being performing without proper assessments, individualization, or attention to your specific needs. This often leads to either a lack of results, or worse, injury.

COR emphasizes a hands-on approach that includes a thorough biomechanical assessment of how the body moves and functions to determine what specific muscle imbalances and movement impairments may be leading to dysfunction or limiting your performance. We then offer an individualized approach by a skilled team in a dynamic small group-training environment. This produces amazing results for a wide variety of people with a safe, fun, and effective program specific for your needs.

Everyone should have access to elite level care, similar to professional athletes.

After years of helping professional athletes return from injury and excel at their sport, we are determined to create a similar environment for the general public. Disappointed with the traditional physical therapy clinic and fitness environments, COR seeks to recreate the sports medicine model used to enhance elite athletic performance by creating an integrated model of physical therapy, fitness, and performance enhancement training in an environment that is suitable for all ages and activity levels. Once again, making you better, no matter your goal or level.

Our integrated environment assures proper communication and collaboration to assure you are getting the level of care you deserve and help you optimize your health, wellness, and performance. Our model is built to assure you get everything you need.

You deserve the best. COR is here to help you achieve your best.

At COR, we pride ourselves in our commitments to our patients, clients, team, and community. Every member of our team is determined to uphold our core values in everything we do.

Welcome each patient and client as a member of our team and family – we are here to help you achieve your goals.

Do whatever it takes to exceed expectations by focusing on the client experience, satisfaction, and outcomes.

Bring our “A” game with a positive and compassionate attitude.

Have fun but always be professional.

Focus on working and growing together to enhance the team by attracting, developing and retaining the best talent for our business.

Never stop learning and advancing to better serve our clients.

Engage in research and education to advance ourselves, as well as our professions by sharing this information.

Lead by example by participating in a healthy lifestyle.

Support our communities and engage in activities that promote health and wellness.

Always take full responsibility and be accountable for our actions to honor the integrity of our mission, vision, and core values.

COR is dedicated to help individuals reach their fullest potential through an integrated approach to elite level physical therapy, adult fitness, and performance training.

Our goal is to help you perform at your best whether that means getting back to sports or simply a healthier and happier lifestyle.


Want to see what it’s like to be a part of #TeamCOR? See our latest pics from Instagram and feel part of the team!

Our Culture


Want to see what it’s like to be a part of #Team COR? See our latest pics from instagram and feel part of the team!

Dr. John Mullen


Dr. John Mullen, DPT, CSCS is a World renowned expert and speaker in sports training and rehabilitation. He received his Doctorate in Physical Therapy at USC, as well as the Josette Antonelli Division Service Scholarship, Order of the Golden Cane, and the Order of Areté. At USC, he also performed research on swimming biomechanics and lung adaptations in swimming training. Dr. John has worked with multiple professional and Olympic athletes, helping them earn Olympic medals.

His dedication to research and individualization spurred him to open COR in 2011. Since 2011, Dr. John has been featured in Gizmodo, Motherboard, Stack Magazine, Swimming World Magazine, Swimmer Magazine, USA Swimming, USA Triathlon, Swimming Science, and many more.

He has worked with the numerous colleges and teams regarding rehab and performance. Before his Doctoral program, Dr. John swam on an athletic scholarship at Purdue University.

At Purdue, Dr. John was an Academic Honorable Mention All-American and was awarded the Red Mackey Award and R. O. Papenguh Award. He also won the Purdue Undergraduate business plan and elevator pitch competition, as well as 1st prize with the Indiana Soy Bean Alliance.

 Dr. John was born in Centerville, Ohio and was a 24-time high school All-American Swimmer. Dr. John is still a swimmer and holds a Masters swimming World and Pacific Swimming Record.

Jamil Devers


Jamil Devers is a Doctor of Physical Therapy student at the University of San Francisco/San Francisco State University. At UCSF/SFSU Jamil has performed and presented research on Myofascial Decompression Therapy for Chronic Hamstring Injuries as well as Psychological Interventions with PT for Athletes following ACL Reconstruction. Additionally, Jamil has participated in UCSF’s Run Safe Program that analyzes running biomechanics and has extracted and investigated research on running as it relates to common injuries, footwear and biomechanics. He was co-president of the Black Student Health Alliance at UCSF and frequently facilitated campus events such as the SNMA at UCSF Student for a Day Conference. Prior to physical therapy school, Jamil graduated Magna Cum Laude Honors with a B.S. in Allied Health Sciences and played 4 years on a full athletic scholarship for Howard University’s NCAA Division I Men’s Soccer team in Washington D.C. At Howard, Jamil was inducted into the Epsilon Tau Sigma Honors Society and the National Society of Collegiate Scholars. He also captained the Men’s Soccer team, was awarded Most Valuable Player during his senior year and was the Assistant Men’s Soccer Coach during the 2011-12 season. Through Jamil’s previous clinical experiences, research and experiences as a collegiate soccer player he has become extremely familiar with soccer and other sports related injuries.

Jamil was born Oakland, CA however he spent most of his childhood upbringing in several countries throughout the Caribbean that included Belize, Jamaica and Trinidad and Tobago. His sensitivity and appreciation of diversity can be accredited to his unique background and experiences derived from residing in several countries. Furthermore, Jamil has adopted a commitment to serving others through his experiences of working with at risk youth and to promoting initiatives that advocate for diversity and the inclusion of minority and underserved individuals throughout all health professions.

Chris Barber


Coach Chris Barber is a foremost expert in sports training, body composition enhancement, and application of biomechanics for performance. Chris is a Certified Personal Trainer with the National Council of Strength and Fitness (NCSF) and with United States of America WeightLifting (USAW).

He also is a ISSA Fitness Nutrition Specialist. Chris graduated with a B.S. at Concordia University in Irvine, CA.

He writes extensively on health, fitness, and sports, being featured in various sports magazines. Chris started as an Intern at COR in December of 2012 and has moved his way up to the Director of Personal Training and the Head Strength and Conditioning Coach at COR.

Chris has been devoted in help everyone strive to achieve their goals.  Through the past 3 years Chris has developed a Kids Athletic Development Program and High School Strength and Conditioning Camps.

Chris played baseball and football for most of life.  With a career ending injury, Chris has been committed in developing young athletes so they will not only become better athletes but most importantly stay healthy!

Michael Vaandering


Michael Vaandering graduated from the University of Michigan School of Kinesiology with a B.S. in Physical Education and a minor in Health Education. He is a Certified Personal Trainer with the American College of Sports Medicine (ACSM).

Michael grew up on the west side of Michigan, where he competed on his high school’s water polo team as well as the swimming and diving team. As a springboard diver, he earned all-state and all-american status.

During his junior and senior years, Michael used his experiences on the diving board to informally mentor the middle school diving team, including occasionally taking the role of interim coach.

During his college career, he was a member of the University of Michigan Men’s Swimming and Diving Team where he helped his team toward NCAA and BIG 10 Championships.

During that time he was also a coach for the local rock climbing team. He used these outlets to apply his knowledge of the underlying biomechanical principles involved in motor movement and performance to gain an edge over competitors and improve the strength and efficiency of his climbers.

Michael has also been published in the International Journal of Case Studies as well as the Journal of School Health for his research into the connection between physical activity and cognition.

As a supporter of lifelong sports and the many benefits that accompany them, Michael spends much of his time in such activities as tennis, squash, rock climbing, hiking, and swimming.

Cassandra Montez


Cassandra lives in the bay area  with her parents and two younger sisters. She is a first generation college student majoring in medical assisting and aspiring to become a cardiac nurse in the future.

She has a passion for health care and have been a hospital volunteer for 3 years. In her spare time, she enjoys spending time with family and friends. She also enjoys crafting, gardening, hiking, and cooking.

Margo Bennett


Margo is a bay area native. I grew up in Cupertino. She is  married, has one daughter and a 10 year old grandson who live in Florida. As a teenager, she was overweight.

The week she turned 18 she joined Weight Watchers and it changed her life. She strives to eat healthy and stay active every day since then. She enjoys spending time with my family, friends, walking my dog, spending time outdoors, all things involved with music, and dancing.


Check out #Team COR Amazing 2,000 square foot facility.

~2,000 sqft of total space

Private physical therapy treatment area
Strength and conditioning area with over 1200 sqft available
Advanced physical therapy and recovery equipment
Complete strength and conditioning equipment with dumbbells, free weights, squat racks, olympic platform, deadlift area, work out rig, gymnastic rings, climbing rope, and more
Functional training equipment like TRX, kettlebells, ropes, medicine balls, and agility ladders
Abundant parking


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3530 Lochinvar Ave.
Santa Clara, CA 95051