
Dr. Gary Dennis is a seasoned healthcare professional and neurospecialist with over three decades of international experience focusing on the profound connection between the nervous system and overall health. As a leading practitioner in New Zealand, Dr. Gary holds a Diploma in Hyperbaric Medicine and is one of the few registered functional HBOT practitioners in the country.
His journey into specialised neurological recovery is deeply personal, in 2018, he suffered a serious traumatic brain injury that fundamentally changed his perspective on healing. After experiencing the limitations of traditional "rest and wait" protocols firsthand, he dedicated his practice to finding more effective, science backed interventions.
Dr. Gary Dennis combines clinical precision with genuine empathy, helping patients navigate the "invisible injury" of concussion by addressing the underlying biological energy crisis that keeps the brain stuck in survival mode.
Dr. Gary Dennis is the founder of Neuro Care and Cocoon, where he pioneers an integrative approach to neurological rehabilitation. His work focuses on "Biochemical Restoration" the science of moving beyond simple mindset shifts to address the physical and cellular requirements of a healing brain.
Through the use of Functional Neurological Rehabilitation and Cocoon Hyperbaric Oxygen Therapy (HBOT), Dr. Gary helps patients restore autonomic balance and calm neuro-inflammation. His signature "Cocoon" model brings clinical grade recovery into the home, allowing for the daily, consistent oxygenation required to repair damaged neurons and exit the "concussion loop." By treating the body’s physiological SOS as a biological call for help, Dr. Gary’s work bridges the gap between clinical science and holistic wellness, providing a roadmap for those ready to move from surviving to thriving.

The hyperbaric chamber worked wonders and our son made rapid progress in recovering from his concussions which was life changing. -Peter
This chamber was an absolute game changer for my daughters recovery from post concussion syndrome, something that she had suffered for over a year by the time we met Dr Gary. -Marie
I decided to take the leap and give it a try and it really amazed me how well it worked. I would really look forward to my sessions and over time feel so much better after them. -Scott