About Your Physician & Chief Longevity Architect
Dr. Sam Banerjee (Legal Name: Subhra Banerjee) is a board-certified gastroenterologist and longevity-focused physician who brings over 15 years of clinical experience. Driven by a desire to go beyond symptom management and fragmented care of today’s conventional healthcare, he started gut focused longevity approach, emphasizing prevention, root cause resolution, and long-term health optimization. He founded LongevIQ GI to offer discerning individuals and families something rarely found in healthcare: proactive, personalized, high-resolution insight into how to live longer — and better.
His approach blends advanced diagnostics with a deep understanding of gut health, inflammation, and metabolic function — the true drivers of aging and chronic disease. Through virtual, physician-led care, he helps clients optimize their biology using the latest in microbiome science, genomic testing, imaging, and preventive strategies that are tailored, discreet, and scientifically grounded.
After completing a rigorous three-year fellowship in gastroenterology and hepatology at the prestigious Mount Sinai Health System in New York City, he has built a distinguished career in both clinical care and research. With a strong passion for gut microbiome science and colon cancer prevention, he has dedicated his career to advancing early detection, educating patients, and promoting proactive health strategies. His expertise in evolving microbiome science is pivotal in understanding its profound impact on longevity and overall health.
An elected Fellow of the American College of Physicians (ACP) and the American College of Gastroenterology (ACG), he is recognized by his peers for his commitment to excellence in both patient care and evidence-based practice. In addition to his clinical practice, he has over six years of experience in clinical research, including involvement in phase III clinical trials and the innovative use of artificial intelligence (AI) to enhance diagnostic and treatment strategies within gastroenterology. He has published peer-reviewed research indexed in PubMed.
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Trust
Experience
Compassion
A Foundation Built on Clinical Excellence
A career shaped by rigorous training, national recognition, and a commitment to evidence-based longevity medicine.







From the
Founder's Desk
In recent years, the science of aging and gut microbiome health has converged in powerful and transformative ways. We now understand that specific microbial signatures are linked to reduced inflammation, improved metabolic function, and extended health span — all critical drivers of longevity. At our Longevity & Wellness clinic, we translate this emerging science into highly personalized, evidence-based strategies — not just to prevent disease, but to enhance whole-body vitality and help you add meaningful, thriving years to your life.
I believe medicine should reflect the way life is actually lived. My extensive travels through the Mediterranean and into the world’s “Blue Zones” — from the olive-covered hills of Crete and the mountain villages of Italy to the coastal communities of the Nicoya Peninsula in Costa Rica — have shown me, firsthand, how fresh food, natural movement, deep social connection, and a respect for nature’s rhythms shape long, healthy lives. These insights aren’t just observational. They form a living framework that guides how I partner with you — integrating advanced clinical science with practical lifestyle strategies, rooted in real-world experience.
Our approach combines a holistic and rigorous methodology with a strong focus on being human-centered. At our Longevity & Wellness clinic, we believe in collaborating with you, not just treating you. Think of this as a wellbeing partnership — you won’t just receive screening tests and rigid protocols. Together, we take a comprehensive look at your health, exploring areas such as metabolic function, digestive health, liver function, microbiome balance, nutrition, sleep, movement, stress levels, and lifestyle habits. This holistic assessment allows us to understand the full picture of your health and longevity needs. From there, we curate a bespoke personalized longevity plan, based on clinical data and enriched by global wellness traditions, aimed at slowing the aging process, optimizing your physical and mental function, and extending your healthy years. Our protocols are uniquely tailored to meet your individual needs and goals. We recognize that life is busy—between demanding careers, family responsibilities, and unforeseen events. That’s why we offer flexible protocols that adapt to your lifestyle, rather than requiring you to change your life to fit the plan. We take a cautious approach to supplements and nutraceuticals, using them only when supported by clear clinical evidence. We believe true wellness begins with intelligent living, not relying on excessive medication.
Whether you’re navigating a midlife transition, recovering from a health challenge, or proactively investing in decades of vibrant health, this clinic offers a space where science meets sensibility, and where your goals guide every step of the process.
As a Board-certified gastroenterologist and hepatologist with a deep understanding of microbiome science, I bring clinical precision to every decision we make. But I also bring the human perspective of a traveler who has shared meals with local seniors in the Mediterranean villages, observed cultures, and learned how environment and habit quietly shape our biology. My role is to serve as both physician and advocate — walking with you on a path toward sustainable vitality, resilience, and long-term wellness.
I invite you to be part of this movement. I look forward to partnering with you on a personalized, science-backed path to longevity.
What We Do
Gut Microbiome Expertise.
Our clients experience measurable improvements in metabolic resilience, body composition, cognitive function, and biological age — outcomes we track with precision over time.
Depending on your goals, we offer several levels of engagement — from foundational health optimization to comprehensive longevity programs that include advanced imaging, multi-cancer screening, and continuous biometric monitoring. We offer a modern, medically advanced path to longevity that goes far beyond annual checkups or fragmented wellness advice.
Our practice focuses on identifying and correcting the silent drivers of aging — inflammation, metabolic dysfunction, gut imbalance, and cellular decline — using the most comprehensive diagnostic tools available. From deep-dive gut analysis to full-body MRI scans, from genomic testing to advanced biomarker profiling — we uncover the full picture of your biology to build a personalized strategy for extending your healthspan, not just your lifespan.
Our Philosophy
Modern Longevity Medicine
Our Philosophy is rooted in the timeless wisdom of the Delphic Maxims — a set of ancient Greek precepts inscribed at the entrance of the Temple of Apollo at Delphi , preserved through millennia and traditionally attributed to the Seven Sages of Greece — these three guiding principles bring an enduring ethos of self knowledge, balance and disciplined humility into our modern practice of longevity medicine.
Know Thyself
We partner with each client to deeply understand their biology, lifestyle, aspirations and boundaries. By fostering self‑awareness, we uncover unique opportunities for enhancement and resilience, anchored in evidence and individual context.

Nothing in Excess
Optimal wellness is not about extremes but sustainable balance. Our philosophy emphasizes precision, measured interventions, and disciplined stewardship of physiology. We guide clients toward a state of durable vitality, rather than fleeting peaks of performance.

Certainty Brings Ruin
In the ever-evolving field of longevity, scientific understanding continues to grow and shift. With this in mind, it's important to approach any emerging therapies with thoughtful curiosity rather than absolute certainty. Our approach is grounded in informed risk management, clear communication, and flexible planning. By setting realistic expectations and focusing on data-driven insights, we aim to offer a service rooted in trust, transparency, and meaningful progress.

Our Signature
5-Step Longevity Process
Discovery & Intake
We begin with an in-depth review of your health history, lifestyle, and personal goals. This is your chance to share your vision of health and future endeavors, whether you’re cheering from the sidelines at your grandchild’s soccer game, still rallying on the tennis court in your eighties, or exploring exotic destinations deep into your senior years — We help you reclaim the most precious assets—time and well‑being—so you live not just longer, but fuller.
Deep Diagnostics
We deploy a suite of world-class diagnostics, including:
- Advanced biomarker panels
- Gut microbiome & intestinal permeability testing
- Advanced epigenetic testing
- Whole-body and Brain MRI
- Multicancer early detection blood test
Testing is arranged discreetly through our partner network or in the comfort of your home.
LongevIQ GI Intelligence Report™
We synthesize your results into a personalized longevity blueprint — highlighting key risks, biological age, gut-brain health status, and opportunities for optimization. Delivered via a written report and virtual consult.
Precision Protocol
You receive a custom health optimization plan, which may include:
- Lifestyle interventions
- Nutrition & gut support
- Optional supplement regimen
- Optional prescriptions & therapeutic protocols
All designed with a longevity-first lens, backed by clinical science.
Ongoing Optimization
Our clients receive continuous support, annual testing, protocol adjustments, and direct access to your physician. Your health evolves — and so does your care.