Top Gut Microbiome Doctor in New York City
For those who have tried “everything” when it comes to gut health, functional medicine is a welcome solution.
Dr. Kellman is nationally recognized as a pioneer of Microbiome Medicine and has spent his career uncovering how gut health influences every aspect of the body. It impacts your digestion, immunity, mood, metabolism, and brain function. His clinic in New York City helps patients find answers to chronic gut issues that conventional medicine often overlooks.
Let’s get to the root.
“Seems Like Everyone Has Gut Issues These Days”
Gastrointestinal (GI) conditions encompass a wide range of disorders that affect the stomach, intestines, and overall digestive system. It’s estimated that over 10% of the U.S. population suffers from GI issues, and among adults over 65, that number jumps to 35%. Research shows that nearly two-thirds of Americans experience at least one GI symptom every week, and GI-related problems account for nearly 100 million ambulatory visits annually.
Despite these high numbers, many people in New York City struggle for years without real answers. Traditional medicine often focuses on suppressing symptoms—using medications like antacids, laxatives, or antibiotics—without addressing the underlying imbalance. Dr. Kellman takes a different approach, looking deeper into the microbiome, diet, and systemic factors that contribute to gut dysfunction.
Common Gut Issues We Treat
At our New York City practice, patients come from around the world seeking relief from chronic digestive and inflammatory issues. Common conditions treated include:
-
How often do I need this treatment?Most patients benefit from just one treatment. However, we recommend a consultation every 9-12 months to determine if you would benefit from additional treatments.
-
How long before I see results?Results vary from patient to patient. Some patients feel better right after their treatment, however most experience the full benefits of this therapy by about 4 months post treatment. When used in conjunction with several of our other technology-based treatments, such as NovoThor Red Light Therapy and Magnesphere, as well as our high-potency IV-therapy, results can be significantly improved.
Dr. Kellman’s practice integrates conventional diagnostics with advanced microbiome testing to pinpoint root causes, not just manage symptoms.
The Gut-Brain Axis – Your Health’s Missing Link
Modern science confirms what Dr. Kellman has long taught: the gut and brain are deeply interconnected through the gut-brain axis. This communication pathway links the central nervous system with the enteric nervous system, allowing your gut microbiota to influence mood, focus, and emotional well-being.
Approximately 90% of serotonin—the body’s “feel-good” neurotransmitter—is produced in the gut. When your microbiome is imbalanced, it can manifest as anxiety, depression, brain fog, or fatigue. Conversely, chronic stress can disrupt digestion and alter the composition of gut bacteria.
At the Kellman Center, treatment often begins with restoring balance to this vital connection. By healing the gut, patients frequently experience clearer thinking, improved mood, and renewed vitality—proof that digestive health is the foundation for mental and emotional wellness.
Why You Haven’t Found Gut Relief Elsewhere
Traditional gastroenterology specialists focus heavily on pharmacological interventions: acid suppressants, antibiotics, anti-inflammatories, or biologic drugs. While these can be helpful for acute symptoms, they rarely restore optimal gut function. In fact, long-term medication use may disrupt the microbiome further, perpetuating inflammation and digestive distress.
Dr. Kellman’s integrative approach recognizes that each patient’s gut microbiome is as unique as their fingerprint. Rather than applying a “one-size-fits-all” solution, he customizes protocols that target the root imbalances—whether microbial, inflammatory, hormonal, or neurological—that underlie chronic gut conditions.
Patients often come to Dr. Kellman after seeing multiple specialists without lasting relief. His approach provides something they haven’t experienced before: a deep, scientific understanding of their body’s systems working together—and a practical roadmap to genuine recovery.
How We Help – Personalized Gut Healing Protocols
Dr. Kellman and his team use advanced diagnostics and personalized care to create comprehensive gut restoration plans. Each program is tailored to the individual, combining evidence-based therapies with a focus on long-term wellness.
-
How often do I need this treatment?Most patients benefit from just one treatment. However, we recommend a consultation every 9-12 months to determine if you would benefit from additional treatments.
-
How long before I see results?Results vary from patient to patient. Some patients feel better right after their treatment, however most experience the full benefits of this therapy by about 4 months post treatment. When used in conjunction with several of our other technology-based treatments, such as NovoThor Red Light Therapy and Magnesphere, as well as our high-potency IV-therapy, results can be significantly improved.
True Healing Starts with the Gut Microbiome
At the heart of every treatment plan at our clinic lies one essential goal: restore the gut microbiome. This community of trillions of bacteria, fungi, and other microorganisms influences not only digestion but nearly every aspect of health—immunity, metabolism, hormones, and even longevity.
When the gut is inflamed or imbalanced, it can lead to fatigue, brain fog, weight gain, autoimmune flare-ups, and mood disturbances. By rebalancing the microbiome, patients experience:
-
Improved energy levels and metabolic function
-
Reduced inflammation throughout the body
-
Better immune resilience and reduced autoimmune activity
-
Enhanced focus and mood stability
Dr. Kellman’s comprehensive microbiome programs have helped thousands of New York City patients reclaim their health. Fixing the gut doesn’t just resolve digestive symptoms—it transforms overall vitality and well-being.
Begin Your Gut Healing Journey Today | Visit Our New York City Clinic
If you’re struggling with digestive symptoms—bloating, abdominal pain, irregularity, food sensitivities, or unexplained fatigue—it’s time to look deeper. You don’t have to live with chronic discomfort or depend on medications forever.
Schedule a consultation with Dr. Raphael Kellman at The Kellman Center in New York City to discover the root cause of your gut issues and begin your personalized journey toward restoration. Healing the gut means healing the body—and your transformation can start today.