Your physicians
Jonathan Marsh, M.D.
Founder
Members by referral only
Dr. Marsh is the founder of Naples Concierge Health and an internal medicine physician in Naples. His focus is preventive care: looking for risk early rather than waiting for symptoms.
“Bring us your questions, we will give you a balanced perspective.”

Background
About Dr. Marsh
As a physician, an entrepreneur and the founder of multiple medical organizations, he understands what people who have run things expect from the professionals they hire. His members have built companies and navigated complex problems, and they recognize that maximizing vitality means challenging the status quo of insurance-dictated medicine.
The practice is dedicated to fiercely proactive, preventive medicine. Combining a physician's clinical expertise with an entrepreneur's mindset, he would rather rebuild how care is delivered than make excuses for a system that is not working: anticipating and optimizing instead of reacting to symptoms, and translating complex data into a personalized, actionable roadmap for the asset everything else depends on. Whether you are stepping into retirement and want to preserve your vitality, or you are protecting an executive team too valuable to lose to preventable illness, that is what this practice was built for.
The other half of the work is communication. Being told something and being able to act on it are different things, and the distance between them is where most of the frustration lives. A visit here is not finished when the medicine is correct. It is finished when you could explain your own condition to your family.
- Specialty
- Internal Medicine, with a focus on health span and longevity
- Board certification
- American Board of Internal Medicine
What that means for you
How this shows up in your care
He will read what you bring in
Bring him whatever you have been reading about. He goes to the literature and comes back with a real answer, even when that answer is that it is not right for you.
He visits members in the hospital
He comes to see you and talks to the team treating you, so that team hears your history from a physician who already knows you.
A physician early in a long career in Naples
He intends to be the physician who knows your history two decades from now.
Start here
Meet Dr. Marsh
Start with a complimentary clinical gap assessment about the care you have now. If it makes sense to go further, the next step is meeting a physician. Call (239) 690-6286.
