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Gut Bacteria

Healing at the foundational level.

Dr. Raphael Kellman is a best selling author and pioneer in functional and microbiome medicine.

Dr. Raphael Kellman: Leading Functional Medicine Doctor in NYC

Symptoms we treat.

Many of our patients come to us for a wide variety of unexplained symptoms. Dr. Kellman is known for his ability to find the causes. He has helped countless numbers of patients. His treatments are designed to activate the healing process and help find you answers. 



Brain Fog



Weight Gain

We find the root cause of your conditions

Long-Haul Covid-19

Chronic Fatigue

Autoimmune Conditions

Thyroid Conditions

Neurodegenerative Diseases


Gastrointestinal Conditions

Chronic Pain

Heavy Metal Toxicity

Unexplained Symptoms

Mold Toxicity

Weight Loss

Bacteria Kellman Center

The healing process.

We have one goal– to treat you with compassion so you can become symptom free


 At your first appointment, we will get to know you and your health journey. 



We use more accurate tests that can finally uncover the causes of your medical condition commonly missed by routine tests.


Dr. Kellman's extensive experience, broad vision and knowledge provides a unique ability to explain the causes of your symptoms.


We develop a personalized treatment plan that not only helps you become symptom free but heal at a foundational level.

Dr. Raphael Kellman Profile

Meet Dr. Raphael Kellman

Dr. Raphael Kellman's vast experience, expertise and intuition provide him with a unique vantage point from which he is able to help people heal and truly change the course of so many lives. He is a pioneer and leader in functional medicine who coined the term "Microbiome Medicine." He has developed hundreds of treatment protocols based on microbiome health, which is the orchestrator of all of the body's systems.


Exclusive specialty treatments.

We offer personalized, evidence-based therapies, including state-of-the-art technologies, to allow for an effective and comprehensive treatment approach for each of our patients.


See what our patients have to say.

Each visit leaves me more educated in health and wellness. Dr. Kellman and his staff are professional, caring and advanced in treatments that most doctors do not have. They are truly the medicine of tomorrow!

I've been a patient of Dr. Kellman's since 2015. He was the only doctor that listened to me & did not dismiss me & the medical issues I was facing at the time. While under his care, I conceived twice and gave birth to my 2 sons. This is something many OBs told me I'd have problems doing. Additionally, he is the only doctor I trust to oversee my thyroid & autoimmune issues. I am always recommending Dr. Kellman to my closest friends and family members. He really is a pioneer in his field!

I came in complaining of bloating, lower digestive and upper digestive pain. Dr. Kellman immediately provided me a test that no other doctor has done. He put me on many supplements and has slowly gotten rid of almost all of my issues. I am now treating the last of the problems causing my pain.

What makes us different?

We practice the art of integrative medicine, a fusion of conventional and functional medicine. By using the best of both disciplines, we craft a personalized treatment for each patient that yields incredible success.

Dr. Raphael Kellman is an expert in the microbiome, coined the term "Microbiome Medicine" and has practiced this approach for years, recognizing its vital role in health and chronic conditions.

Dr. Raphael Kellman, an expert in thyroid disease, utilizes the highly sensitive and precise TRH Stimulation Test to detect low thyroid more definitively. This test, often unknown and underutilized by other doctors, has transformed numerous lives by providing accurate diagnosis and treatment after years of suffering.

We implement advanced IV therapies, biological peptides, exosomes, IV ozone, UV therapy, and cutting-edge technologies like the Novothor Infrared Laser and the Magnesphere immersion systems to enhance energy, alleviate pain, aid weight loss, and rebalance the autonomic nervous system for relaxation and inflammation reduction.

Our personalized and predictive advanced testing, known as "scientific wellness," examines genetics, inflammatory markers, and unique indicators for optimized health. It offers unique options not found in other functional medical practices.

Top-Rated Functional Medicine in NY City, NY

Dr. Raphael Kellman's office is located at 7 W 45th St, Suite 301, New York, NY 10036, United States. From LaGuardia Airport (LGA / KLGA) head west toward 94th St and use any lane to take the Grand Central Parkway ramp. Then, merge onto Grand Central Pkwy and use the right 2 lanes to take exit 4 toward Staten Is. Next, continue onto I-278 W/Brooklyn Queens Expy E and take exit 35 to merge onto I-495 W toward Midtown Tun. At this point, continue onto I-495 W/Queens–Midtown Tunl and use the 2nd from the right lane to take the 37 St exit toward Crosstown. Then, use the right lane to merge onto E 37th St and then use the right 2 lanes to turn right after CityMD East 37th Urgent Care - NYC (on the right). Finally, turn left after Wendy's (on the left) and Kellman Wellness Center will be on the right.

We are open: Monday-Thursday: 9:30 AM–5 PM, Friday, 10 AM–2 PM, Saturday: Closed, Sunday: Closed.

For additional questions, you can call (212) 717-1118.

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