meet the team
Chiropractor
Dr. Jason Gemmer, DC
Location: Tempe
Dr. Jason is an Arizona native, born in Tucson and grew up in Las Vegas, Nevada. He attended the University of Las Vegas Nevada and then transferred to the University of Alberta in Edmonton, Alberta Canada where he received his Bachelor's in Physical Education.
While working on his degree in Canada, Dr. Gemmer was a strength and conditioning specialist, boxing coach and mentor for amateur/professional boxers and MMA fighters. Although Dr. Gemmer is passionate about the coaching aspect, he knew that there was much more that he wanted to pursue in life not only for himself, but to offer a healthier path for his athletes.
Through searching for the next step, he moved to San Jose, California to attend Palmer West College of Chiropractic where he received his Doctorate in Chiropractic. This is where Dr. Gemmer found his true passion and purpose, which was to give back and educate athletes as well as the general population about not only physical fitness, but the importance of proper body mechanics, muscle recovery and full-body rejuvenation.
Chiropractor
Dr. Cameron Call, DC
Location: Tempe
Dr. Cameron Call graduated from Parker University in 2015 after receiving his Bachelor of Science degree in Exercise Science from Brigham Young University. His passion lies in helping individuals enjoy a life unrestricted by chronic health conditions.
While not in the office, you'll find Dr. Call soaking up some free time with his three children, Nash, Granger, and Tenley. Dr. Call also enjoys playing the piano, hiking, competing in local CrossFit competitions, baking, and eating Mexican food.
Chiropractor
Dr. Collin Jensen, DC
Location: Tempe
Dr. Collin Jensen hails from the great state of Nebraska, bringing his passion for helping others to the team at Axis Spine and Sport. Outside the clinic, Dr. Jensen enjoys an active lifestyle that includes playing rugby, hiking, cooking, and spending time outdoors.
Whether it’s pickleball, tubing, paddleboarding, or enjoying live music at concerts, he’s always up for an adventure.
Dr. Jensen finds immense joy in working with the talented team at Axis Spine and Sport, where daily laughter with patients and colleagues is part of the experience. What he loves most about his work is helping patients return to doing what they love while empowering them to take an active role in their health journey.
Chiropractor
Dr. Billie Barefoot, DC
Location: Gilbert
Dr. Barefoot is an Arizona native who discovered his passion for natural health while earning his Bachelor of Science degree at Northern Arizona University. He went on to graduate from Parker University’s College of Chiropractic Medicine in Dallas, Texas, and has been practicing in the East Valley for more than 19 years.
As a former Academic All-American wrestler, Dr. Barefoot values the lessons of sports and has devoted himself to coaching high school wrestling programs in the community since 2006. His commitment to the health and well-being of student athletes reflects his passion for both chiropractic care and community service. Dr. Barefoot is excited to bring his experience and dedication to Axis Spine and Sport.
Chiropractor
Dr. James Holloway, DC
Location: Gilbert
With more than a decade of experience, Dr. James Holloway is a dedicated chiropractor committed to helping patients restore natural movement and achieve long-term wellness.
Based in Tempe, Dr. Holloway integrates functional movement and holistic medicine into his care, empowering patients to live active, pain-free lifestyles by addressing root causes rather than symptoms. When he’s not in the clinic, Dr. Holloway enjoys local sports and athletic events and treasures time with his family, finding balance between his passion for health and his love for those closest to him.
Chiropractic Assistant
Irais L.
Location: Tempe
Irais was born and raised in Maryvale, Arizona. He graduated from Metro Tech High School in 2020 and is currently attending Phoenix College. He has practiced MMA since the age of 10 and has received his brown belt in Brazilian Jiu Jitsu.
Chiropractic Assistant
Emily T.
Location: Gilbert
Emily is a small-town girl from Milford, Pennsylvania. She studied at Wilkes University where she got her bachelor's in Neuroscience. When Emily is not outside enjoying nature or going on hikes, she is inside with her two cats and you can find her doing one of her many crafting hobbies.
Her favorite thing about working at Axis Spine and Sport is getting to know the patients individually while seeing each person strive to become their better selves with the help of our amazing staff.
Chiropractic Assistant
Kaylee D.
Location: Gilbert
Kaylee is a Chiropractic Assistant from Madera, California who enjoys golfing, baking, and spending quality time with loved ones. She is passionate about building connections with patients and finds fulfillment in witnessing their progress throughout their time in the office.
Kaylee loves working at Axis because of the fun office atmosphere, the amazing team environment, and the caring doctors who make each day rewarding.
Chiropractic Assistant
Kamryn Knox
Location: Tempe
Kamryn, originally from Oregon, brings her passion for health, wellness, and people to Axis Spine and Sport. With over eight years of experience in the wellness industry, she is both a CrossFit coach and a personal photographer.
Kam loves the outdoors, fitness, and building authentic connections. At Axis, she thrives on making patients feel welcome and comfortable, while helping them take steps toward becoming the healthiest versions of themselves.
licensed Massage therapist
Destiny L.
Location: Tempe
Where you are from: Phoenix, Arizona
Hobbies and interests: Hiking, being outdoors, reading,self care and helping others
What you like about your job and working for Axis Spine and Sport: I enjoy the friendly work environment and the calming atmosphere. I believing in promoting natural healing and the ability to make a difference in peoples wellbeing.
licensed Massage therapist
Desiree Peters, LMT
Location: Gilbert
Desiree has been proudly serving the East Mesa community as a Licensed Massage Therapist since 2013, after graduating from Pima Medical Institute. She is passionate about creating a calming, safe space where clients can find relief from stress and pain, whether through relaxation or therapeutic care.
Her goal is always to foster healing, recovery, and well-being. Outside of work, Desiree is a proud mom of four and a loving wife. She enjoys reading, working out, watching movies with her family, and relaxing with coffee or tea. At Axis Spine and Sport, she appreciates being part of a supportive team while building meaningful connections with patients.
licensed Massage therapist
Jules Smith, LMT
Location: Gilbert
Jules brings a unique blend of expertise and personality to her role as a Medical Massage Therapist. With eight years of experience, she has mastered 16 modalities and continues to expand her skills, specializing in deep tissue therapy and Traditional Chinese Medicine.
Known for helping others find freedom in their movement, Jules describes herself as a “world-class weirdo” with a big heart for her patients. Outside the clinic, she is a devoted cat mom, enjoys DIY punk shows, and loves learning about other cultures, all of which fuel her creativity and compassion.
Personal Injury Director
Meghan Scheels
Meghan loves spending time with her family camping, traveling, or simply enjoying game nights together. At Axis Spine and Sport, she values being able to deliver top-level patient care, not only for patients but also for the law firms the clinic partners with. She takes pride in knowing every patient receives the best chiropractic care possible.
Office Manager
Sandra C.
Location: Gilbert
Sandra is from Phoenix, AZ. She is avid mountaineer that loves to conquer the tallest peaks in the world. When she is not at Axis she loves spending time with her children. She loves to work at Axis Spine and Sport because of our amazing patients and getting to see them regain and improve their health.
Front Desk Receptionist
Kiana L.
Location: Tempe
Where You Are From: Born in Page, AZ. Raised in Las Vegas, NV
Outside of work, I'm all about pushing my limits-whether it's hitting the trails for a run, diving into the intensity of MMA, or leveling up my strength with weightlifting.
Trail running challenges my endurance while giving me a deep sense of freedom and connection with nature, allowing me to clear my mind and stay focused. MMA, on the other hand, helps me embrace both mental and physical toughness. The discipline and strategy involved in training and competing keep me constantly evolving, pushing me to be stronger, faster, and more resilient. I'm also an avid reader, always seeking new knowledge, and my faith in Jesus Christ provides a strong foundation that keeps me grounded and inspired. Additionally, I love volunteering at my church, where I can give back to the community and strengthen my sense of purpose. I'm also committed to furthering my education, always looking for opportunities to learn and grow both personally and professionally.
What I Love About My Job at Axis Spine and Sport: What excites me most about working at Axis is the incredible opportunity to witness firsthand the transformation in each patient's health and well-being. Every day, I'm amazed by the positive impact our team has in helping people overcome pain and unlock their full potential. It's truly a privilege to be part of a team that not only improves lives but empowers patients to achieve their best health. Every moment spent here reminds me of the profound difference we make in others' lives, and I'm deeply honored to be part of that journey.
Front Desk
Cameka Knighten
Location: Tempe
Cameka has a passion for exploring the world and connecting with people. She finds joy in traveling, discovering new experiences, and expressing her creativity through crafting.
Whether it’s dancing, enjoying the ocean, or spending time with her team, she embraces life with energy and gratitude. At Axis Spine and Sport, what Cameka values most is being part of a supportive team and the strong family culture that makes every day meaningful.
