Dr. David Marquis, DC DACBN

Dr. David Marquis, DC DACBN Dr. Marquis is a Functional Medicine doctor who goes beyond symptom management medicine.

How many people do you know that think they have some form of "ADD or Aspergers", or just get "Foggy in the Brain" and are forgetful of names and places or those who stumble or trip a lot. These are all subtle signs of a Brain Imbalance that affect health in ways that will totally surprise you. Patients who have unrecognized neurological symptoms due to an imbalance between their left and right br

ain hemispheres need help and medication isn't always the solution. Drugs treat the hemispheres equally, where as Brain Based Therapy can treat a specific area in the brain; effectively helping the patient recover from symptoms and conditions caused when the brain is imbalanced. These unique therapies when combined with proper fuel delivery (metabolism) allow patients to succeed in overcoming their blocks to optimal health. After a complete evaluation which often includes full labs and physical exam along with history to determine the actual cause of complaints Dr. Marquis will implement an equally comprehensive treatment plan. He will leave no stone unturned to assist his patients in their recovery.

A Parkinson’s diagnosis can feel overwhelming, but it does not define a person’s future. Every journey is unique, and ev...
06/18/2026

A Parkinson’s diagnosis can feel overwhelming, but it does not define a person’s future. Every journey is unique, and every victory—big or small—is worth celebrating.

Today we’re honored to share this story of resilience, determination, and hope. Through the challenges, there is still strength. Through the uncertainty, there is still purpose. And through every step of the journey, there is the opportunity to keep moving forward.
Thank you for trusting us to be part of your health journey and for reminding others that they are not alone. 💙

FunctionalMedicine BrainHealth HealthJourney Inspiration PathwaysToHealth

Join us for a speaking event in office with Dr. Marquis at the end of the month! He will be covering a variety of topics...
06/17/2026

Join us for a speaking event in office with Dr. Marquis at the end of the month! He will be covering a variety of topics related to Cognitive decline as well as answering questions!

Shout out to our amazing front desk for making sure everyone gets checked in, checked out, and scheduled! Couldn’t do it...
06/16/2026

Shout out to our amazing front desk for making sure everyone gets checked in, checked out, and scheduled! Couldn’t do it without them ✨🌟💫

Neuro team practicing EEGs! 🧠 What can an EEG tell us about your brain?An EEG (electroencephalogram) measures the electr...
06/09/2026

Neuro team practicing EEGs! 🧠 What can an EEG tell us about your brain?

An EEG (electroencephalogram) measures the electrical activity of the brain in real time, giving us valuable insight into how the brain is functioning—not just how it’s structured.
EEGs can help identify patterns associated with brain injuries, concussions, cognitive decline, attention challenges, sleep disturbances, anxiety, and more. Even when an MRI looks normal, an EEG may reveal areas of the brain that are underactive, overactive, or struggling to communicate efficiently.

At Pathways to Health, we use advanced brain-based assessments to better understand what’s happening beneath the surface so we can create personalized strategies to support brain health, performance, and recovery.
Your symptoms tell part of the story. Your brain activity can tell us even more. 🧠✨

FunctionalNeurology PathwaysToHealth HealthyBrain

06/01/2026

Your microbiome influences far more than digestion—it plays a key role in immune function, brain health, hormone balance, pregnancy wellness, and overall resilience.

✨ Our favorite support options from Microbiome Labs include:

🧠 Gut Brain Reset – designed to support the powerful connection between your gut and brain.

🛡️ Epic Defense – helps support a healthy immune response and gut barrier function.

🌸 Vaginal Balance – promotes a healthy vaginal microbiome and microbial diversity.

🤰 Pregnancy Support – targeted probiotics to support both mom and baby during pregnancy.

🦠 PyloGuard – formulated to help maintain a healthy stomach environment and support digestive comfort.

A healthy microbiome is the foundation of health. When we support the beneficial bacteria in our gut, we create a stronger foundation for digestion, immunity, mood, hormones, and overall well-being.

VaginalHealth PyloGuard FunctionalMedicine PathwaysToHealth

From surfing in Florida to helping patients optimize brain and body health, Dr. John LeMay brings passion, curiosity, an...
05/20/2026

From surfing in Florida to helping patients optimize brain and body health, Dr. John LeMay brings passion, curiosity, and decades of experience into every patient interaction. Through advanced neurological approaches, functional medicine, and a whole-body perspective, he’s dedicated to helping people feel and function at their best.

When he’s not in the clinic, you’ll probably find him spending time with family, near the ocean, or continuing to learn the latest in brain health and performance medicine. 🌊🧠

05/14/2026

NEW SUPPLEMENT! Sleep is when the body restores, repairs, detoxifies, and resets. 😴✨

BioSleep is designed to support deeper, more restorative sleep by helping calm the nervous system and support the body’s natural sleep rhythms — without leaving you feeling groggy the next morning.

Better sleep can support:�🧠 Brain health & recovery�⚡ Energy & resilience�💪 Muscle repair & recovery�🩸 Hormone balance�🌿 Nervous system regulation

Quality sleep is one of the foundations of healing. Your body can’t fully recover if it never gets the chance to truly rest. 🌙

05/13/2026

Not all cognitive decline is the same. 🧠
“Dementia” is often used as an umbrella term, but there are many different contributors and patterns of decline — from vascular changes and inflammation to autoimmune activity, metabolic dysfunction, toxins, trauma, and neurodegeneration.
That’s why looking deeper matters.

At Pathways to Health, we utilize advanced testing to better understand the why behind symptoms and risk factors, including:
�• Cyrex Labs LINX testing to evaluate immune reactivity, inflammation, permeability, and neurological autoimmunity�• EEG brain mapping to assess brainwave activity and nervous system function�• Coronary Calcium Score (CAC) to evaluate vascular health and cardiovascular risk, which can play a major role in cognitive decline

Your brain does not function in isolation — vascular health, immune health, metabolic health, and nervous system function are all connected. 🧩

Early insight and prevention can make a powerful difference. ✨

05/04/2026

🆕Supplement highlight! — Profi nasal spray = your invisible shield ✨
Creates a barrier in your nose to help trap germs, allergens & pollutants before they get in.

Not a cure-all—but a simple extra layer of protection for travel, crowds & everyday life 🛫

Because bone loss is silent—until it isn’t 🦴.Our bone-building protocol matters because it targets the root: better abso...
05/01/2026

Because bone loss is silent—until it isn’t 🦴.

Our bone-building protocol matters because it targets the root: better absorption, proper mineral use, reduced inflammation, and strength through movement..

Stronger bones aren’t just about calcium—they’re about giving your body the right environment to rebuild and stay resilient for life. 💪🏼✨.

Address

2 James Way, Suite 101
Pismo Beach, CA
93449

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 2pm

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