Raphael Kellman M.D.

Raphael Kellman M.D. Dr. Kellman’s expertise in identifying root causes, combined with thorough testing, allows him to accurately diagnose and treat patients.

He pioneered "Microbiome Medicine," being the first to recognize the microbiome's crucial role in overall health. I understand your frustration with not feeling well and not getting better. I share your desire to get to the root cause of the problem. As a pioneer in functional medicine, my approach incorporates cutting-edge technology, the latest advances in natural medicine, and the science of how nature heals. My training in the philosophy of science and my years of experience as an M.D. have enabled me to take holistic and functional medicine to a whole new level. As a result, I can offer you a unique and powerful treatment plan that can transform your health…and your life.

Happy Labor Day, everyone! I hope you're having a wonderful and restful weekend.This holiday always makes me think about...
09/01/2025

Happy Labor Day, everyone! I hope you're having a wonderful and restful weekend.

This holiday always makes me think about how much we put into our work, our families, and our lives—but how often do we put that same effort into ourselves? Your body works so hard for you every single day, and it deserves a break and some love.

To help you give your health the holiday it deserves, I've sent a personal offer straight to your inbox. Go check your email for a little gift from me!

08/30/2025

Part 3
Every patient's story is a testament to the power of healing from the inside out. My book, The Microbiome Diet, was born from the belief that our health journey is a partnership, and I’m so grateful for the trust my patients place in me.

shares an amazing experience, and it’s a powerful reminder of what's possible when you commit to your health.

I want to help you feel this good, too. When you book your consultation this September, you'll receive a special gift to help you get started on your wellness journey with us.

Don't wait to start feeling better. Book your appointment today via the link in my bio to find out what the gift is!

08/29/2025

Part 2
Every patient's story is a testament to the power of healing from the inside out. My book, The Microbiome Diet, was born from the belief that our health journey is a partnership, and I’m so grateful for the trust my patients place in me.

shares an amazing experience, and it’s a powerful reminder of what's possible when you commit to your health.

I want to help you feel this good, too. When you book your consultation this September, you'll receive a special gift to help you get started on your wellness journey with us.

Don't wait to start feeling better. Book your appointment today via the link in my bio to find out what the gift is!

08/28/2025

Part 1
Every patient's story is a testament to the power of healing from the inside out. My book, The Microbiome Diet, was born from the belief that our health journey is a partnership, and I’m so grateful for the trust my patients place in me.

shares an amazing experience, and it’s a powerful reminder of what's possible when you commit to your health.

I want to help you feel this good, too. When you book your consultation this September, you'll receive a special gift to help you get started on your wellness journey with us.

Don't wait to start feeling better. Book your appointment today via the link in my bio to find out what the gift is!

08/17/2025
07/24/2025

NAD+ is everywhere — IV drips, spas, even nail salons. But here’s the truth: taking NAD+ alone isn’t how real healing happens.

On its own, NAD+ can help — but if you want lasting, optimized results, you need to pair it with specific compounds that support your cellular systems and unlock its full potential.
This isn’t hype — it’s how the body works. Biology is a network, not a solo act.

We’ve developed a formulation that takes NAD+ to the next level — designed to actually work with your body, not just trend online.

07/22/2025

✨ NAD+ Synergy: The Grand Slam Your Cells Deserve ✨

NAD+ is an incredible molecule — it’s part of the Krebs cycle, where your body produces energy at the cellular level. But here’s the thing no one talks about: NAD+ doesn’t work in isolation.

You see, there are many other compounds that interact with NAD+ to unlock its true potential — what I call NAD+ Synergy.

When I pair NAD+ with carnitine — delivered subcutaneously, right under the skin — it brings fatty acids into the mitochondria so NAD+ can actually do its job.

When I add phenylbutyrate, or butyrate, or even alpha-ketoglutarate — these compounds move the cycle forward, creating effects far beyond what NAD+ alone can achieve.

👉 This is the idea that the whole is more than the sum of its parts.

It’s not just a home run — it’s a Grand Slam.

That’s why I don’t just offer NAD+. I tailor combinations of 2–3 synergistic compounds based on you, your biology, and your needs.

And the results? Patients love it. They feel the difference. They keep coming back for it. They’re experiencing a revolution in energy, focus, recovery, and vitality.

NAD+ alone is good — but it’s not enough for long-term transformation.
💥 If you want the Grand Slam: you need NAD+ Synergy.

It could change everything for you.

➡️ Book your consultation and experience NAD+ Synergy today.

07/18/2025

Biology works in fellowship — NAD+ alone won’t fix your brain fog, fatigue, or burnout. Here’s the real game-changer.

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07/16/2025

NAD+ is only the beginning. Our Ultra NAD combines it with carnitine and more to unlock deeper, longer-lasting energy where it matters most — in your cells. Follow along in our next videos as I dive into our incredible treatments and how they can help you.

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07/10/2025

You don’t have to live with that heavy, bloated feeling. Here are 5 ways that will help you feel lighter, calmer, and more yourself.

06/20/2025

Long-Haul COVID: A New Illness Needs a New Approach Part 2
What I’ve seen in my patients with long COVID is unlike anything we’ve treated before. It’s not just lingering symptoms — it’s a disruption of the gut, immune system, brain, and metabolism.

As a microbiome-focused doctor, I’ve helped patients who felt dismissed or stuck finally start to heal. Recovery is possible — but it requires a personalized, root-cause approach.

📲 DM “LONG COVID” to learn more or schedule a consultation.

06/20/2025

Long-Haul COVID: A New Illness Needs a New Approach Part 1.
What I’ve seen in my patients with long COVID is unlike anything we’ve treated before. It’s not just lingering symptoms — it’s a disruption of the gut, immune system, brain, and metabolism.

As a microbiome-focused doctor, I’ve helped patients who felt dismissed or stuck finally start to heal. Recovery is possible — but it requires a personalized, root-cause approach.

📲 DM “LONG COVID” to learn more or schedule a consultation.

Address

7 W 45th Street, Suite 301
New York, NY
10036

Opening Hours

Monday 9:30am - 5:30pm
Tuesday 9:30am - 5:30pm
Wednesday 9:30am - 5:30pm
Thursday 9:30am - 5:30pm
Friday 9:30am - 3pm

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