Meet the Team

Founder & Chiropractor David Hausmann D.C.

Chiropractor Nashville TN David HausmannDr. David J. Hausmann was born and raised in New Jersey. An Eagle Scout recipient, he graduated with his bachelors from the University of North Carolina at Chapel Hill in 2009 and went on to receive his doctorate degree from Palmer College of Chiropractic in 2012.

Dr. Hausmann has been a part of the Stronghold Health Mission since 2009, and is dedicated to showing people the tools to true health and wellness. Dr. Hausmann has traveled the country interning in some of the largest health clinics receiving advanced training in spinal correction, toxicity, exercise and nutrition from leading professionals in these fields. A practicing doctor for 5+ years, he has shown great passion in what he does in caring for others and teaching them how to achieve healing through healthy life style choices and the correction and maintenance of a healthy nervous system. Knowledgeable and kind, Dr. Hausmann spends hours training, studying, and learning the most advanced chiropractic techniques and wellness information to ensure his patients receive the best care possible. His desire to help others drives him to serve and to help meet the needs of local businesses, schools, churches, and other organizations in the community. Stronghold Health is most well-known for being the official chiropractic and performance team for Olympic Governing Bodies and their athletes to achieve optimal performance. Stronghold Health doctors traveled to London 2012 Olympic Games, having a seat in 3 governing bodies, cared for the USA Wrestling, Weightlifting, and Judo teams, helping them bring home several medals including gold for Olympian, Kayla Harrison. In 2014, he was ready to deliver this incredible health care system to the people he loved and cared about, and opened his own clinic here in Nashville. TN.

Chiropractor John Negley D.C.

John William Negley, DC is a Nashville native, growing up in Franklin, Tennessee after he moved here with his family in 1997. He attended and graduated from Franklin High school in 2008. In Chicago he received his undergraduate degree in Applied Science, Pre-Medicine from Wheaton College in 2013.

He was introduced to Chiropractic in 7th grade when his mother suffered from a condition called Trigeminal Neuralgia, an issue with the 5th cranial nerve that provides motor and sensory function to the face. It is termed a “suicide disease” due to the unrelenting and excruciating pain caused to the person afflicted, making the individual feel as there is no other alternative. After six months of being told nothing could be done other than surgery, Dr. John found a website introducing him to the alternative methods of chiropractic. Within two visits to a chiropractor, her pain was in complete remission! Once Dr. John saw the powerful life-changing effects of chiropractic care, he was accepted into Fountainhead of Chiropractic, Palmer College of Chiropractic, in Davenport, Iowa. While in attendance at Palmer, he completed his graduate degree as a Doctor of Chiropractic, learning from some of the best in the profession. He was trained in the science, philosophy, and art of Chiropractic, spending three and a half years working on technique and gaining the knowledge to provide the best care possible for his patients. He returned home to Nashville to help provide this city the same life-changing care that was given to his family. Giving instruction, providing education, as well as restoring proper alignment to the body so that it can function at optimum capability—these are some of his greatest passions. He is beyond excited to be joining the amazing team here at Stronghold Health and looks forward to helping the greater Nashville community!

Julie Colvin - Clinic Director

Chiropractic Nashville TN Emma Hubbard Outreach CoordinatorJulie was born in Kentucky but moved to Cincinnati, Ohio the summer before 5th grade. She graduated college from Miami University in Oxford, Ohio where she received her Bachelor’s in Health Promotion. She also has 5 years of personal health coaching experience.

After graduating college, she committed to an internship at Vanderbilt Dayani Center in Nashville, Tennessee. During this time, she was exposed to cardiac rehab, cancer wellness, exercise testing, and learned the process of reading patient’s EKG’s. The cancer wellness program was something that was near and dear to her heart as she has had many family members struggle with this terrible disease. It was such a rewarding experience to work with people that were going through one of the most difficult times of their lives, but were still able to find the positivity in every situation. She continued to see them regain their strength after each session and knew she wanted to work in an environment where she could see people’s happiness grow as they continue to see results. She is looking forward to working with this wonderful group and serving the patients of Stronghold Health.

Emma Hubbard - Nutritionist & Outreach Coordinator

Emma was born and raised in Michigan, but moved to White House, TN during high school. During her senior year of high school, she was offered a scholarship to play volleyball at Martin Methodist College. During her time at MMC, she enjoyed learning about nutrition and how to fuel her body as a college athlete.

To pursue her passion in nutrition, she attended Tennessee Technological University and received her Bachelors degree in Food, Nutrition and Dietetics in August of 2016. Upon returning to the Nashville area, Emma gained experience as a Health Coach, helping others achieve their goals in nutrition, exercise and weight loss. With a passion for helping others improve health and well-being, Emma is excited to continue making a difference in the lives of others at Stronghold Health.

Katrina Giuliano Hausmann - Acquisitions Director

Katrina is a Nashville native from Dickson, TN. She married Dr. Hausmann on April of 2017. She received a Master’s in Nutrition and Exercise Physiology from Lipscomb University after completing her B.S. in Exercise Science at Tennessee Tech University. She has over 10 years of experience in the exercise industry and 5 years of personal health coaching experience as well.

At a younger age, she saw her brother struggle with his health due to an autoimmune disease. A long road of medical treatments and procedures provided him with no improvement. It wasn’t until he was introduced to proper nutrition and exercise that he radically healed and transformed his health. Doctors were astonished! Seeing him fully recovered and healed, Katrina became extremely passionate and driven to help others achieve health and healing through nutrition and holistic methods. When realizing that chiropractic care can help get to the cause of so many diseases people deal with, and how these simple lifestyle changes could have prevented years and years of unnecessary medications and hospitalizations, Katrina decided to dedicate her life to teaching the world about proper nutrition, exercise, chiropractic care, and living a healthy lifestyle. She is excited to share her commitment to health with everyone here at Stronghold, and her compassion and drive makes her a wonderful addition to our team.

Max Jarrell - Case Manager & Exercise Coordinator

Max was born and raised here in Nashville, TN in the Bellevue area. He attended the local college prep school, Montgomery Bell Academy, where he won back-to-back state titles in wrestling as well as MVP honors as a soccer player for the Big Red. Once enrolled at the University of Tennessee at Knoxville, he found the Exercise Science Program to be of exceptional interest and graduated with a degree in Kinesiology in May of 2015.

Upon returning to Nashville, Max has used his decade of experience in the exercise field to help numerous friends and family achieve their strength training and weight loss goals. With an “exercise is medicine” approach, he hopes to continue making a difference in the lives of others, as well as continue his education at a chiropractic institution in the not too distant future. He is looking forward to serving the patients of Stronghold Health.

Payton Crider - Chiropractic Assistant

Chiropractic Nashville TN Payton Crider Chiropractic Assistant

Payton was born and raised in Dickson, TN but moved to Nashville where she currently attends Lipscomb University. While majoring in Biology, she is also preparing to apply to graduate Physician Assistant programs in the near future. Payton received a scholarship to cheer for Lipscomb and enjoys being an ambassador for the school and encouraging and energizing the fans. She brings that same passion and enthusiasm to the office.

Payton has spent over 200 hours volunteering in nursing homes, hospitals, and orthopedic offices but had never experienced anything like what she found at Stronghold Chiropractic. She saw both Dr. Dave and the whole care team invest and minister to every single patient that came in. Payton knew she had to be a part of this family that cared about people’s complete well-being and health, not just fixing a symptom. She is honored to join the Stronghold team and is eager to start serving and empowering patients.


7:30am - 10:00am
3:30pm - 6:30pm

11:00am - 2:00pm

7:30am - 10:00am
3:30pm - 6:30pm

2:00pm - 5:00pm

7:30am - 10:00am

8:45am - 10:00am

Stronghold Health
301 14th Avenue North #101
Nashville, TN 37203
(615) 730-8131