Joseph Dituri

Commander Joseph Dituri enlisted in the U.S. Navy in 1985. He served continuously on active service upon various ships and shore stations where he was involved in every aspect of diving and special operations work from saturation diving and deep submergence to submersible design and clearance diving. Now that he is retired from 28 years of active service to the United States, he is the president of the International Board of Undersea Medicine. He also volunteers his time as the CEO of the Association for Marine Exploration. He is an invited speaker on medical, motivational, sea and space related topics.

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Joseph earned a bachelor’s degree in Computer Science from the University of South Carolina as well as a masters degree in Astronautical Engineering from Naval Post Graduate School in California. Additionally, he is a graduate of the Advanced Management Program at the University of Virginia Darden School of Business and earned a Ph.D. in Biomedical Engineering from the University of South Florida.

Joseph is the author of numerous diver-training manuals, a co-author of the book “Tao of Survival Underwater”, a contributing author to the Navy Diving Manual, and has been published in several journals including those produced by the American Society of Naval Engineers and American Institute of Aeronautics and Astronautics. He is a class “D” Licensed Sky Diver, a one atmosphere suit Pilot and a Level three certified Systems Engineer and Level three Program Manager for the Department of Defense. Commander Dituri has 11 personal awards / (medals) earned from his time in the U.S. Navy, enjoys writing books, skydiving and has a long-term goal of being a civilian astronaut.

Tracey Littrell DC, DACBR, DIANM

Tracey A. Littrell, DC, DACBR, DIANM is a 1997 Palmer graduate and an Associate Professor in the Diagnosis and Radiology Department of Palmer College of Chiropractic, teaching Physical Diagnosis and Clinical Psychology. She is a frequent continuing education lecturer for Palmer College, the International Chiropractors Association Council on Chiropractic Pediatrics, several state associations, and has had the privilege of teaching across the United States and in several international venues, including Egypt, Australia, Canada, and Brazil. She is the managing editor of the Journal of the Academy of Chiropractic Orthopedists and the radiology editor and frequent article contributor to DC Tracts and is a contributing author to the 2nd and 3rd editions of “Clinical Imaging: with Skeletal, Chest, and Abdomen Pattern Differentials“. In addition to her academic duties, Dr. Littrell maintains a private practice as a chiropractic radiologist.

Ken Thomas, DC

Dr. Kenneth Thomas, Senior Educational Consultant at Parker University, is a 1986 graduate of Parker College of Chiropractic. He has been a Parker faculty member, administrator, and team teacher since 1986.

Dr. Thomas received the Parker Lifetime Achievement Award in 2015. He has lectured nationally and internationally on chiropractic and holds a master’s degree in physical therapy.

After 20 years of clinical practice, Dr. Thomas is a respected expert in the chiropractic field and lectures extensively on the use of modalities and exercise in chiropractic practice, as well as the treatment of sports injuries, current healthcare trends, and various aspects of a wellness lifestyle.

Gregg Friedman, DC

Dr. Gregg Friedman is a second-generation chiropractor practicing in Scottsdale/Phoenix, Arizona, since 1987. He hataught chiropractors how to document for more than 20 years and consults with doctors, insurance companies, and attorneys.  

Dr. Gregg Friedman is the founder of Got Documentation, a unique company specializing in professional chiropractic documentation. 

Nichelle Gurule, DC

Dr. Nichelle Gurule is a chiropractor, personal trainer, birth doula, and a mom of three. She specializes in women’s health with a focus on prenatal and postpartum chiropractic care, rehab therapy, and fitness.

During her own journey into motherhood, she saw the huge deficits in care across both health and fitness fields. This has prompted her to dive into the research and learn from other highly specialized experts working with postpartum moms in rehabbing their diastasis recti, pelvic floor dysfunctions, and returning moms to fitness.

She owns a women’s health practice in Louisville, Colorado and also founded Gaia Health Academy, an educational platform for both clinicians and patients. Her mission is to educate women and empower them to restore their bodies.

Etienne DuBarry, DC

Dr. Etienne Dubarry has 10 years of private practice in France and 30 in the United States. He taught for 10 years in Santiago, Chile, and Cordoba, Argentina, where he initiated the establishment of a full-time chiropractic course at the University Central Catholic in Santiago. 


Dr. Dubarry was a guest speaker for the Florida Chiropractic Association, the Florida Chiropractic Physician Association, and the Institute Franco-European de Chiropraxie Paris, France (IFEC). Dr. Dubarry is a current Keiser University advisory board member. 


Dr. Dubarry teaches seminars in three languages and multiple countries through his Adjust for Success organization. He has authored three textbooks, translated in three languages, and is currently in private practice in Palm Beach Gardens, Florida.