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About Dr. Fitz Most supplement brands are run by marketers. This one is run by a peripheral nerve surgeon — who started in exercise physiology.Over a 20+ year career, Dr. Michael Fitzmaurice has worked at every layer of one question — why some bodies heal and others don’t. As an exercise physiologist, as a peripheral nerve surgeon for 15+ of those years, and as a physician trained in anti-aging and regenerative medicine. What he discovered about recovery, metabolism, and nerve repair led to the creation of NeuroAxis — and to the nerve and metabolic health work he does today.
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Dr. Michael Fitzmaurice, MD Peripheral Nerve Surgeon & Founder |
The Story Behind the Science
Studying what surgery alone couldn’t explain.
When Surgery Wasn’t Enough
For more than a decade, Dr. Fitzmaurice performed thousands of peripheral nerve procedures — carpal tunnel releases, nerve decompressions, reconstructive microsurgery. He was good at it. His patients got better.
But not all of them got better the same way.
Two patients. Same diagnosis. Same procedure. Same surgical outcome. One would recover quickly, regain strength, return to normal life — while the other would struggle with lingering symptoms, slow healing, and frustrating setbacks.
That discrepancy kept him up at night.
He started digging. Not into surgical technique — he had that dialed in. He started looking upstream. At the metabolic environment those nerves were living in. At insulin resistance. Chronic inflammation. Micronutrient deficiencies. Mitochondrial function. Vascular supply to peripheral nerves.
The patients who healed best weren’t just patients who had good surgery. They were patients whose bodies were metabolically equipped to repair themselves.
That insight shifted everything. Dr. Fitzmaurice began integrating nutrition, metabolic optimization, and targeted supplementation into his patient protocols. He designed a nerve support formula — originally called NeuroGen® — and ran clinical research on it. The results were published. The outcomes spoke for themselves.
Today, that work continues through Dr. Fitz Nutrition and NeuroAxis — a supplement built not by a marketing team, but by a surgeon who needed something better for his own patients and couldn’t find it. It also continues in the consultations he now offers in both nerve health and metabolic health — because the same upstream factors that shape nerve recovery shape insulin resistance, inflammation, and how the body ages.
By the Numbers
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20+ Years in Medicine |
3,000+ Nerve & Regenerative |
2 Peer-Reviewed |
7 Years Surgical |
The Background That Makes This Different
Dr. Fitzmaurice didn’t start in medicine — he started in movement and metabolism. He trained as an exercise physiologist, became a peripheral nerve surgeon, then went deeper into anti-aging and regenerative medicine. Each stage built on the one before it — and together they explain why he treats nerve health and metabolic health as one connected practice.
Origin
His undergraduate training in Exercise Science and Cardiac Rehabilitation gave him a foundational understanding of how the human body responds to physical stress, recovers from injury, and adapts over time. That foundation shaped everything that came after.
After completing his Master of Science in Biomedical Science, he earned his Doctor of Medicine before embarking on one of the most demanding training pathways in surgery — a six-year General Surgery residency followed by a highly competitive fellowship in Hand and Reconstructive Microsurgery at the internationally recognized Kleinert Institute in Louisville, Kentucky.
Education
- B.S., Exercise Science & Cardiac Rehabilitation
- M.S., Biomedical Science
- Doctor of Medicine
Residency & Fellowship
- General Surgery Residency — University of South Carolina, Columbia
- Hand & Reconstructive Microsurgery Fellowship — Kleinert Institute, University of Louisville
Advanced Certifications
- Fellowship-Trained, Longevity & Anti-Aging Medicine — A4M
- Fellowship-Trained, Stem Cell & Regenerative Medicine — A4M
Leadership
He went on to serve as Medical Director, Chief Medical Officer, and ultimately Founder and CEO of the Fitzmaurice Hand Institute and EndoTech Surgery Center in Scottsdale, Arizona — developing patented minimally invasive surgical systems used in procedures across the country.
In 2018, he became fellowship-trained in Stem Cell and Regenerative Medicine through the American Academy of Anti-Aging Medicine — one of the few surgeons in the country to hold that distinction alongside a surgical subspecialty.
His Framework
Nerve Health and Metabolic Health Are Systems Problems. He Treats Them That Way.
Most approaches address the symptom. Dr. Fitzmaurice’s framework addresses the environment that nerves — and metabolism — live and recover in. It’s the same systems thinking, applied to both.
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01 Surgical Insight With 15+ years performing peripheral nerve surgery, Dr. Fitzmaurice understands nerve anatomy, compression physiology, and regeneration at a procedural level that most educators simply don’t have. He has performed over 3,000 nerve and regenerative procedures — and seen firsthand what separates patients who recover fully from those who don’t. |
02 Metabolic Science Trained in exercise physiology before ever entering medical school, Dr. Fitzmaurice has always understood that nerve health is inseparable from metabolic health. Insulin sensitivity, chronic inflammation, mitochondrial efficiency, and vascular supply to peripheral nerves all play a direct role in how nerves function, repair, and recover over time. |
03 Evidence-Based Practice Dr. Fitzmaurice doesn’t recommend what sounds good — he recommends what has been studied, measured, and documented. He has published peer-reviewed research on nerve supplement outcomes and continues to research the intersection of nutrition, metabolic health, and peripheral nerve recovery. |
Not Sure Where You Stand?
Find out where your nerve — or metabolic — health stands.
Before you consider a supplement or a consultation, it helps to understand your own starting point. Dr. Fitzmaurice built free, physician-designed assessments — one for nerve health, one for metabolic health — that walk you through the same factors he looks at and show you where to focus. Both take about five minutes.
Take a Free Health AssessmentPrefer to talk it through first? Dr. Fitzmaurice also offers free 10-minute discovery calls for nerve health and metabolic health.
He Didn't Just Design a Supplement. He Studied It.
NeuroAxis is built on the same formula Dr. Fitzmaurice developed for his own surgical patients — originally called NeuroGen®. Before bringing it to market, he ran clinical research on real patients recovering from peripheral nerve procedures.
This isn't a supplement brand that cites other people's research. It's a supplement brand that generates its own.
Note: Dr. Fitzmaurice has also contributed chapters to surgical textbooks, presented at national and international medical conferences, and served as principal investigator on multiple clinical research studies.
The Mission Behind the Science
Peripheral neuropathy affects tens of millions of people. Many of them are told there's little they can do beyond managing symptoms with medication. They leave their doctor's office with a prescription, a diagnosis, and very few answers about what's actually driving their condition.
Dr. Fitzmaurice respectfully disagrees with that approach. His clinical experience — both in the operating room and in metabolic medicine — consistently demonstrated that the body has far more capacity to support nerve function and recovery than most patients are ever told.
When the metabolic environment is optimized, when chronic inflammation is addressed, when nerves are given the nutritional building blocks they need — the body is better positioned to support its own recovery.
My goal is simple — to give people the information and the tools their doctor may not have time to provide. Nerve health is not a mystery. It is a science. And science gives us a path forward.
The Journey:
Background & Education
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Exercise Physiology & Biomedical Science
Dr. Fitzmaurice's academic foundation began with a degree in Exercise Physiology — an early focus on how metabolic health and movement science influence recovery and nerve function. He built on this with a Master's in Biomedical Science, deepening his understanding of the body's interconnected systems before entering medical school.
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Medical Degree & General Surgery Residency
After earning his MD, Dr. Fitzmaurice completed a rigorous residency in General Surgery — the clinical backbone that would support his later specialization in complex nerve and hand reconstruction.
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Fellowship — Kleinert Institute, Louisville, KY
Dr. Fitzmaurice completed a prestigious fellowship in Hand and Reconstructive Microsurgery at the Kleinert Institute in Louisville, Kentucky — one of the nation's most respected training centers for hand surgery and peripheral nerve reconstruction. This training shaped his precision-first approach to nerve care.
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Regenerative Medicine & Minimally Invasive Techniques
Driven by a commitment to advancing outcomes beyond the operating room, Dr. Fitzmaurice pursued additional training in regenerative medicine and stem cell therapy as a Fellow of the American Academy of Anti-Aging Medicine (A4M). His work in minimally invasive nerve surgery — including endoscopic carpal tunnel release — reflects a philosophy of reducing patient burden while optimizing long-term nerve health.
Real Stories from Real Patients
Every patient's nerve health journey is unique. These are some of the experiences shared by individuals who have worked with Dr. Fitzmaurice — combining surgical care, metabolic support, and targeted nutritional strategies.
"After years of persistent wrist pain, I finally found a path forward. The combination of minimally invasive surgery and Dr. Fitzmaurice's recovery guidance — including the nerve support supplements — gave me the tools I hadn't found anywhere else. I'm back to doing things I had given up on."
"The numbness and tingling in my fingers had become part of my daily life. Dr. Fitzmaurice's approach addressed things from multiple directions — not just the structural issue, but also the metabolic side of nerve health. The personalized care plan made a meaningful difference in how I feel day to day."
* Individual patient experiences vary. These accounts are shared for illustrative purposes and do not constitute medical advice. NeuroAxis is a dietary supplement and is not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare provider regarding any medical condition.