Legacy content: This page preserves the history of Dr. Mark Groff, former owner of Gallatin Disc Center. Dr. Groff no longer provides care at this office. Current care is provided by Dr. Palmer Piana, DC, the current owner and director.
The biography below preserves Dr. Groff’s background and contributions during his time at the practice.

Dr. Mark Groff, a distinguished graduate of Palmer University in Davenport, Iowa, earned his Doctorate in 1996. With over 28 years of experience, Dr. Groff began practicing in Tennessee in 1996 and serving the Sumner County community in 1998.
As the former Owner and Director of Disc Centers of America Gallatin and Knee Centers of America Gallatin, Dr. Groff specialized in treating severe back, neck, shoulder, and knee pain, as well as headaches, sciatica, and disc-related issues. His clinic was dedicated to delivering holistic, individualized care specifically tailored to the personal circumstances of each patient. Dr. Groff exclusively utilized the latest state-of-the-art equipment innovations in “real” decompression therapy which were developed and researched at Harvard University and have received FDA clearance ensuring the highest standard of patient outcomes and results. This dedication to advanced technology and personalized care was fundamental to his mission to restore health and significantly enhance the quality of life for his patients. Dr. Groff’s commitment to superior research-based treatment protocols and cutting-edge technology empowered his team to assist thousands of patients. Dr. Groff helped numerous patients avoid surgery and regain their quality of life.
Dr. Groff’s background includes membership in the Tennessee Chiropractic Association beginning in 1996 and service as Vice President of the International Disc Education Association for 2021–2022. He is certified in Non-Surgical Spinal Decompression from Parker University and Life University. Additionally, he is a contributing author to The Ultimate Spinal Decompression textbook, the first comprehensive guide on spinal decompression.
During his time at the practice, Dr. Groff was passionate about helping his patients heal and regain their functional well-being without the need for surgeries. His dedication to patient care is paralleled by his commitment to his family and community. As a devoted husband and father of four, Dr. Groff actively participates in his church’s medical missions’ group and enjoys outdoor activities like running, bike riding, and boating with his family.
- Published as Contributing Author, The Ultimate Spinal Decompression Textbook, the first comprehensive guide on spinal decompression, 2023
- Post graduate studies and certification in MRI Reading and Interpretation of the Spine, Parker University 2019, 2020, and 2021.
- Post graduate studies and certification in MRI Reading and Interpretation of the Spine, Life University 2022, and 2023.
- Post graduate studies and certification in Neuropathy, Parker University 2019.
- Post graduate studies and certification in Non-Surgical Spinal Decompression, Parker University 2019, 2020, and 2021
- Post graduate certification in Non-Surgical Spinal Decompression, Life University 2022, and 2023
- Member of the International Disc Education Association, I.D.E.A, 2019, 2020, 2021, 2022, 2023, 2024
- Vice President of the International Disc Education Association, I.D.E.A, 2021 through 2022.The International Disc Education Association I.D.E.A is dedicated to the progress and research of spinal disc conditions that empower doctors with the best educational tools utilizing non-surgical spinal decompression to provide the best patient outcomes.
- Dr. Groff is recognized by the International Medical Advisory Board on SPINAL DECOMPRESSION, I.B.M.A.B.S.D, to have Advanced Training in Disc Disorders 2019, 2020, 2021, 2022, 2023.The International Medical Advisory Board on SPINAL DECOMPRESSION, I.B.M.A.B.S.D is Constituted by 10 Medical Physicians and 10 Chiropractic Physicians who have obtained NATIONAL Non-Surgical Spinal Decompression University Based Certification and have Demonstrated an Exemplary Level of Excellence in the Diagnosis and Treatment of Spinal Disc Disorders.
- Dr. Groff is recognized as 2019’s, 2020’s, 2021’s, 2022’s, and 2023’s BEST Spinal Decompression Doctors in America.
- Top Doctor certified by Disc Centers of America, 2024
- Post graduate studies and certification in Clinical Nutrition, 2016
- Post graduate studies and certified in the American Medical Association’s Guide to Permanent Impairments 2005










