As you'll discover, each of our professionals contributes unique and valuable qualities to our team, from experience and training to our personalized training approaches. This diversity of backgrounds, capabilities, and perspectives allows us to bring the depth of knowledge and resources necessary to help clients of all ages and abilities achieve their goals.

Jim Keller ATC

Overall, Jim is backed by more than 20 years of experience in working with injured and non-injured professional and collegiate athletes. A Colorado native, he earned his bachelor's degree in exercise science at Fort Lewis College and his master's degree in kinesiology from University of Northern Colorado.

Today, Jim is an active member of the National Athletic Trainers Association, the Colorado Athletic Trainers Association and the Rocky Mountain Athletic Trainer's Society and speaks frequently at both local and national industry symposiums.

Jim's passion for health, the science of fitness and sports performance motivates professional and amateur athletes alike to take their health and fitness to the next level. Beyond sports, Jim's greatest joy is spending time with his wife Sherry and his two daughters, Kylie and Brooklyn.

Joining the Next Level team in 2007, Brad Walters couples physical therapy with sports performance. As a former collegiate athlete who continues to enjoy numerous sports and activities, Brad Walters understands firsthand the physical demands and challenges confronting today's athletes and sports enthusiasts. His personal experience coupled with his extensive background in orthopedic and spinal rehabilitation provides an ideal foundation from which to apply his expertise as a Next Level Physical Therapist. This personalized approach allows Brad to assist each client in establishing and achieving incremental goals, based on their specific rehabilitation needs and objectives. Brad combines hands on therapeutic treatment techniques with functional based exercises that are tailored to both the home and clinic environments.

Brad graduated from the University of Colorado at Boulder, majoring in kinesiology. He subsequently earned a Master of Science in Physical Therapy from the University of Colorado Health Sciences Center. He has been a member of the American Physical Therapy Association and an orthopedic section since 2002. A Colorado native, Brad enjoys four full seasons of active endeavors throughout the state, including hiking, fly-fishing, skiing and spending time with his wife Rachael. TOP

Zeron has been with the Next Level team since summer 2007. Zeron originally came to Next Level Sports Performance after tearing his Achilles in training camp with the New England Patriots. After a long and extensive rehabilitation here at Next Level, he was able to complete one more year in the National Football League with the Oakland Raiders. Zeron brings 12 years of fitness knowledge to Next Level. Zeron went to the University of Iowa where was a 5 year student-athlete with the Football team. After college Zeron signed with the Washington Redskins were he played Tight End for four seasons. After playing for the Redskins, he signed with the Patriots where he was injured in training camp. Zeron played the last season of his career in 2005/2006 with the Oakland Raiders. Zeron and his lovely wife, Corie, are enjoying a new member to their family. Their daughter Maya Corinne Flemister was born on April 24, 2007. TOP

Andrea has been at Next Level since summer of 2007. Andrea attended the University of Ball State where she was a 4 year student athlete on the gymnastics team. Following her graduation at Ball State she attended PIMA where she received her Physical Therapy Assistant degree. Andrea’s personal experience of injuries through gymnastics gives her a unique look and better understanding of the rehabilitation process. TOP

Shane Thomas, MS

Shane has been with the Next Level team since summer 2007. Shane originally came to Next Level Sports performance from a Tibia/Fibula fracture. He knows first hand what it takes to get back from major setback. Shane believes that being a great inspirational leader means helping all clients believe that with hard work and clear goals, they can achieve all of their life and fitness goals.

Shane holds a four year degree in exercise science from Carthage College in Kenosha Wisconsin, and a Masters degree in exercise science from the University of Northern Colorado. Along with being a sport performance coach at Next Level, Shane also works for the sports supplement company EAS. His responsibilities include managing the world renowned Body-for-Life Challenge. Shane is committed and thrives on helping people. TOP

Joe Bryant, DPT, ACSM

Joe joined the Next Level team in January 2008. Joe has extensive background participating in a variety of sports as both an athlete and a coach. Joe earned his Bachelors degree from the University of Northern Colorado and also worked additionally in cancer rehabilitation. He then pursued his Doctoral of Physical Therapy degree from the University of Colorado Health Sciences Center. Joe is excited to work in a setting such as Next Level that allows for a collaborative individualized therapy approach aimed at maximizing functional returns in every patient. Joe was recently married to his high school sweetheart, and they enjoy taking advantage of outdoor activities with their two beagles. TOP

Mike joined the Next Level team in the summer of 2008. As a Next Level Physical Therapist Mike combines a practice of physical therapy based on best available evidence and sound clinical reasoning. Through his experience working with collegiate athletes at Utah State as well as the many recreational enthusiasts eager to revitalize their activity levels, he is able to tailor challenging and effective treatment plans that meet the desires of each patient’s goals. Mike graduated from Utah State University with a dual major in Exercise Science and Health Education. Most recently he earned his Doctorate of Physical Therapy from the University of Colorado Health Sciences Center. He is also an active member of the American Physical Therapy Association since 2005. Outside of his professional endeavors he enjoys the many outdoor recreational opportunities Colorado has to offer with his wife, Jalene and two daughters, Joslyn and Kortny. TOP

Sherry Keller, Administrative Assistant

Sherry officially joined the staff as Administrative Assistant in the Summer of 2008. She has been involved behind the scenes and decided to come on board this year. She opted to join the team at Next Level, instead of returning to her previous profession of teaching. Sherry is a graduate of Fort Lewis College, where she excelled as a Collegiate Cross Country runner. Sherry’s passion for the outdoors and exercise is a welcome addition to the staff. She enjoys her time at home raising her daughters Kylie and Brooklyn and spending time with her husband Jim. TOP

Nadine joined the Next Level team in February 2008. She was looking to use her degree after having two kids. She played basketball and soccer at Mesa State College where she graduated with her accounting degree. She is responsible for the accounting aspects of the business. When she is not helping at Next Level she enjoys playing sports, camping, and snowboarding with her husband, Ed, son Zach and daughter Erin (soon to be a third). TOP