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.

Chiropractor Nashville TN John NegleyJohn 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.

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.

Hannah Heinz - Chiropractic Assistant

Chiropractic Nashville TN Hannah Heinz Chiropractic AssistantHannah is a native Tennessean raised in Dickson, TN and she moved to Nashville in Spring of 2018. She started studying food and nutrition at the Institute for Integrative Nutrition in 2011 where she became a Certified Holistic Health Practitioner. Additionally, she has coached and co-authored with other health professionals to encourage moms help and empower their families.

In 2015, Hannah graduated from Escoffier Culinary International Academy where she became a certified Chef and Baker. She also spent the last year doing mission work and teaching English in Taiwan. In her spare time, she loves to cook Asian influenced foods and study international cultures. She also loves creating sound and producing her own music @gracewaveaudio - so check it out on iTunes!

Hannah is thrilled to be a part of Stronghold Health and helping each and every patient establish and maintain a healthy lifestyle. She has personally experienced extreme scoliosis reduction through chiropractic care and has gained back a pain-free life. Therefore, she is passionate about sharing a lifestyle that has been enhanced and strengthened by chiropractic care for over eight years.

Madeline Fox - Chiropractic Assistant

Chiropractic Nashville TN Madeline Fox Chiropractic AssistantMadeline is Nashville native. She graduated college from Bethel University in 2013 with a degree in Biology with Pre-Professional Health. She played Division II soccer all 4 years of college and it helped her realize the importance of maintaining a healthy lifestyle. After graduating college, she completed clinical hours at an OBGYN office and realized that she wanted to focus on a more holistic approach to health. She was recently accepted into University of Alabama's Dietitian program and is extremely excited to implement her passion of nutrition right here at Stronghold.

Josh Hurley - Massage Therapist

Chiropractic Nashville TN Josh Hurley Massage TherapistJosh Hurley, LMT is originally from CA, but moved to the middle TN area during high school. He graduated with a Bachelors Degree from Middle Tennessee State University in 2008 and with a Masters Degree in Biology from Vanderbilt University in 2013. After graduating, he spent 2 years in the pharmaceutical field, almost moved out of the country for the Peace Corps, and worked as technical support for enterprise telecommunications. After enduring the soul-crushing business world for 5 years, he discovered that his passion lay in helping people live healthier, more pain free lives. To pursue this passion, he enrolled in Nashville School of Massage Therapy and became a licensed massage therapist (LMT) in April 2018. Since joining Stronghold Health, I have been continually amazed at how chiropractic and massage work synergistically to radically transform people’s lives and health. He has continued to learn from the expertise shown by the Dr’s and looks forward to helping people become pain-free, and enabling people to attain their peak muscular and spinal health.


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

3:00pm - 6:00pm

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

3:00pm - 6:00pm

9:30am - 12:30pm


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