Manhattan Integrative Medicine

Manhattan Integrative Medicine

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Integrative Medicine Physician with years of clinical experience, practicing in New York, NY and Boca Raton, FL

Dr. David Borenstein is New York’s and South Florida’s leading integrative and functional medicine physician. Board certified by multiple medical associations, including American College for Advancement in Medicine and American Academy of Anti-Aging Medicine, Dr. David Borenstein combines the best of traditional and holistic medicine.

David Borenstein MD and the Case for Treating the Whole Person, Not Just the Symptoms - ValiantCEO 09/28/2026

https://valiantceo.com/david-borenstein-md-and-the-case-for-treating-the-whole-person-not-just-the-symptoms/

David Borenstein MD and the Case for Treating the Whole Person, Not Just the Symptoms - ValiantCEO David Borenstein MD explains why treating the whole person can lead to better care by addressing underlying factors instead of focusing only on symptoms.

Dr. David Borenstein: Functional Medicine Expert 08/13/2026

https://ceoweekly.com/why-patients-choose-dr-david-borenstein-for-functional-and-integrative-medicine/

Dr. David Borenstein: Functional Medicine Expert Discover why patients choose Dr. David Borenstein for functional and integrative medicine. Learn about his root cause approach to chronic illness.

Dr. David Borenstein 08/02/2026

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Dr. David Borenstein Dr. David Borenstein is the founder of Manhattan Integrative Medicine, where he incorporates functional medicine principles into his approach to patient care. He earned his medical degree from the Technion Faculty of Medicine in Haifa, Israel, and completed his internship at Staten Island University...

07/25/2026

Why having proper levels of B12 is important for your health

07/22/2026

Dr. David Borenstein MD Discusses the Future of Regenerative Medicine and Personalized Healing

Dr. David Borenstein has spent more than a decade watching patients walk into his office bent over from knee pain, unable to lift a coffee cup because of shoulder damage, or resigned to a life managed by prescription refills. Many leave with something different: a plan built around their own biology, not just their symptoms. It's a shift he has watched unfold slowly, one consultation at a time, over more than ten years of practice.
"I started using stem cells over a decade ago when I was introduced to stem cells by the Cell Surgical Network, a California based group that specializes in adipose derived stem cells," Borenstein says. "I started using adipose derived cells and saw amazing results with patients with orthopedic conditions."
That was over a decade ago. Dr. Borenstein was already a practicing physician and steeped in the traditional model of treat-the-symptom medicine. Then he saw what regenerative therapy could do for damaged joints and worn-down tissue, and he couldn’t unsee it. That early exposure reshaped how Borenstein approaches medicine. He didn’t abandon conventional medicine. He built something around it.
Board Certifications Built Over Years of Training
David Borenstein is the founder of Manhattan Integrative Medicine and now practices at Manhattan Integrative Medicine of South Florida in Boca Raton, where he sees patients as an integrative medicine specialist and functional medicine doctor.
He earned his medical degree from the Technion Faculty of Medicine in Haifa, Israel, and completed his internship at Staten Island University Hospital. He is board certified in Physical Medicine and Rehabilitation and certified in Medical Acupuncture, with additional board certifications through the American College for Advancement in Medicine and the American Academy of Anti-Aging Medicine. He is also a member of numerous professional medical societies, a résumé built over years of formal training layered on top of clinical experience.
He has been published in the European Journal of Ultrasound and served as chief investigator on a research project examining spinal cord injuries. That research background shows up in how he talks about regenerative medicine today: carefully, and without the hype that often surrounds the field.
David Borenstein, MD Manhattan Integrative Medicine of South Florida, didn't set out to build a practice around stem cells. After seeing how well its treatments worked, he brought that model into his own practice, built on a simple habit: listen first, treat second.
David Borenstein MD Says Regenerative Medicine Targets the Damage Itself
Most orthopedic treatments chase pain. Borenstein said his approach chases the cause.
"Unlike other methods for treating orthopedic conditions that are symptom based, stem cells and regenerative medicine can actually fix damaged tissue," he says.
That distinction sits at the center of his practice. Patients commonly come in with knee osteoarthritis, shoulder pain, elbow pain, and neck and back pain, according to Borenstein. Rather than cycling through anti-inflammatories or injections aimed only at dulling discomfort, he evaluates whether regenerative therapy could address the underlying tissue damage driving the pain in the first place. For many of these patients, years of conventional treatment have offered only temporary relief, a cycle of flare-ups and follow-up visits without much change in the underlying joint or tissue.
Getting to know his patients and understanding their symptoms, he says, are the starting points for every treatment protocol he designs. It's an approach that treats each patient's case as its own puzzle rather than a standard checklist.
Every patient starts the same way, with a conversation. He takes a solid history, asking about frequency and intensity of pain, what makes it worse, what relieves it, and what treatments a patient has already tried. Only after that groundwork does a treatment plan take shape, one built around a specific person rather than a diagnosis code. That initial evaluation, he says, shapes everything that follows, from whether a patient is a fit for treatment to how the therapy itself is designed.
He has described his greatest sense of accomplishment as coming from helping patients make real changes in their lives, especially after they've been through a difficult stretch of pain or illness.
Dr. David Borenstein Separates Fact From Fear Around Stem Cells
David Borenstein MD reviews every patient on a case by case basis, and not everyone qualifies.
"Some patients have degeneration that is too severe or may have contraindications to stem cell treatment," he says, citing active malignancy, infections, and breastfeeding as examples of factors that could rule someone out.
That screening process reflects a broader caution running through Borenstein's work. Regenerative medicine, in his framing, is a tool. A powerful one, but not a universal one. He said the goal is matching the right patient to the right therapy, and being honest when someone isn't a fit, even if that means recommending an alternative course of treatment instead.
Misconceptions follow this field around like a shadow, and Dr. Borenstein has heard most of them by now.
“Some people think all stem cells are from embryos, even though the vast majority of regenerative procedures use adult cells, or mesenchymal stem cells, taken directly from your own body or derived from donated umbilical cord tissue,” he says.
There’s also the assumption that stem cells are some kind of cure-all, a fix for whatever ails you, no questions asked. Dr. Borenstein pushes back on that one too. "It can be effective, but never 100 percent," he says.
And no, contrary to what some patients believe, it’s not illegal or unavailable in the United States. It’s regulated, it’s practiced, and it’s been part of his own clinical work for years.
These confusions, Borenstein says, keeps some patients from even asking the question, and it's part of why he spends time during consultations explaining the basics before any discussion of treatment begins.
Getting the facts straight matters to him, maybe more than most doctors would bother to explain. He’s not selling a miracle. He’s offering an option, one with real potential and real limits, and he’d rather a patient walk in informed than hopeful for something that was never on the table.
Linking Stem Cells to a Larger Functional Medicine Approach
For David Borenstein MD, stem cell therapy doesn't exist on its own. It fits inside a wider functional medicine philosophy that looks at gut health, nutrient deficiencies, and other root causes before symptoms even surface.
"Functional medicine focuses on identifying root causes, such as gut health and nutrient deficiencies," he says. "Stem cells act as the body's natural repair system, releasing growth factors and signaling molecules to lower inflammation and regenerate damaged tissues."
That framing treats the body as an interconnected system rather than a collection of isolated complaints. A knee injection means something different when it's paired with an evaluation of inflammation, nutrition, and overall metabolic health. It's a slower, more layered way of practicing medicine than writing a prescription and moving to the next room, and it's the model Manhattan Integrative Medicine of South Florida was built around. Acupuncture, anti-aging therapies, and other integrative treatments Borenstein offers work alongside regenerative medicine rather than in place of it, each addressing a different piece of a patient's overall health picture.
Looking Toward the Next Decade of Regenerative Care
Ask Borenstein where the field is headed, and he doesn't hedge much.
"These are exciting times to watch stem cell and regenerative medicine progress," he says. He points to induced pluripotent stem cells, or iPSCs, as the biggest leap on the horizon. By reprogramming adult cells into an embryonic-like state, researchers are working on personalized, "off the shelf" therapies aimed at conditions including Type 1 diabetes, Parkinson's disease and macular degeneration, without the immune rejection risks tied to other approaches.
"The potential benefit is enormous," he says.
It's a future built on the same idea that pulled Borenstein into the field more than ten years ago: treating the body's actual damage instead of just its symptoms. He's watched that principle move from a niche approach used by a California network of physicians to something increasingly central in orthopedic and integrative care.
David Borenstein, MD Manhattan Integrative Medicine of South Florida, doesn't oversell where things stand today. He's quick to note limits, quick to name who shouldn't pursue treatment, quick to correct a misconception rather than let it stand. But when the conversation turns to what's coming next, decades of caution give way to something closer to enthusiasm.
"The future of stem cells and regenerative medicine is very promising," he says. "The sky is the limit."
For now, that future plays out one consultation at a time in Boca Raton, where patients still start with the same basic questions Borenstein has been asking for years.
Science may be advancing toward reprogrammed cells and personalized therapies once considered science fiction, but the starting point at Manhattan Integrative Medicine hasn't changed much at all. It still begins with listening.

07/22/2026

Why Patients Choose Dr. David Borenstein for Functional and Integrative Medicine.

Picture a patient who has already seen ten different doctors. He has a stack of test results, a drawer full of prescriptions, and no answers that actually hold. He sits across from yet another physician and says, quietly, "Doc, you are my last hope."
That moment is not unusual for Dr. David Borenstein MD, Manhattan Integrative Medicine of South Florida. It's practically a pattern. And for Dr. Borenstein, it represents exactly the kind of challenge that pulled him away from conventional medicine in the first place and toward an approach that treats the person, not just the problem.
Borenstein built his practice around a simple but demanding idea: chronic illness deserves more than symptom management. Patients who cannot get better under standard care are not failures. They are patients whose root causes have not yet been found.
The Fibromyalgia Patient Who Changed Everything
The story starts during residency training. Borenstein had a patient with fibromyalgia. Nobody on the team knew what to do. Specialists were consulted. Treatments were tried. Nothing moved the needle.
"I said to myself, there must be a way," he recalled. So he went looking. He researched practitioners working outside conventional frameworks, studied their protocols, and pursued additional training in integrative medicine. He eventually joined an integrative medicine clinic in New York, applied what he had learned, and watched patients respond in ways they hadn't before.
That early experience planted a conviction he has carried ever since. Traditional medicine, he explains, excels at acute care and emergencies. But for chronic conditions, it frequently falls short because it targets symptoms rather than the biological imbalances driving them.
After years of additional training, Borenstein opened his own practice. The model he built places functional medicine at its center, with a patient-centered philosophy that asks not only what is wrong, but why.
What "Root Cause" Actually Means in Practice
The phrase "root cause medicine" gets used loosely. At Borenstein's practice, it means something specific and methodical.
Every new patient begins with a thorough history. He asks about symptoms in detail: frequency, intensity, what worsens them, what relieves them, and what treatments have already been attempted. From there, he orders comprehensive lab work that goes well beyond the standard panels most patients have seen before. Hormone levels, nutrient markers, gut function, thyroid panels, and toxicity screening are all part of the picture.
The conditions this approach is built for include:
Chronic fatigue and fibromyalgia
Irritable bowel syndrome and SIBO
Hormonal imbalances, including low testosterone and hypothyroidism
Hashimoto's and other autoimmune conditions
Mold and mycotoxin exposure
PMS and PCOS
These are patients who often arrive frustrated. Many have been dismissed or told their labs look "normal" while they feel anything but. Borenstein's approach to that frustration is direct. "We listen," he said. "We don't dismiss. We work hard with the patient to address their issues and think and treat out of the box."
That posture, more than any single treatment protocol, is what shows up repeatedly when patients describe their experience at his practice.
A Case That Illustrates the Difference
Depression offers a useful illustration of how the functional medicine approach diverges from conventional care.
In a standard primary care or psychiatric setting, a patient presenting with depression will typically leave with an antidepressant prescription. That prescription may help. But it addresses the symptom, not the source.
Borenstein's intake for the same patient looks considerably different. He screens for nutritional deficiencies, including low levels of vitamin D, magnesium, zinc, B-12, and folate. He checks hormonal status, looking at testosterone, thyroid function, and cortisol. He evaluates gut health for dysbiosis and intestinal permeability. He screens for toxicity and chronic infections, including mycotoxins and heavy metals.
Any one of those factors, or a combination of them, can produce or worsen depression. Treating the symptom without addressing the underlying imbalance means the patient stays on medication indefinitely without ever getting to the cause.
This is the kind of thinking that David Borenstein MD reviews reflect when patients describe feeling heard for the first time. It's not that medications are off the table. Borenstein uses pharmaceuticals, imaging, and specialist referrals when the situation calls for them. The difference is that medication is one tool among many, not the default answer to every presentation.
Stem Cell Therapy and the Body's Own Repair System
More than a decade ago, Borenstein was introduced to adipose-derived stem cells through the Cell Surgical Network, a California-based group specializing in that technology. He began using it for orthopedic conditions and saw results that shifted how he thought about tissue repair entirely.
Most orthopedic treatments are symptom-based. Pain management, anti-inflammatory medications, and surgery address the experience of damage without rebuilding the tissue itself. Regenerative medicine, Borenstein explains, works differently. Stem cells act as the body's natural repair system, releasing growth factors and signaling molecules that lower inflammation and regenerate damaged tissue.
Patients seeking this kind of care typically present with:
Knee osteoarthritis and chronic joint pain
Shoulder, elbow, and neck pain
Degenerative back conditions
The consultation process mirrors his functional medicine intake: a detailed history of the pain, prior treatments, and a careful evaluation of whether the patient is a good candidate. Some patients have degeneration that is too advanced for regenerative therapy. Others have contraindications, including active malignancy, current infection, or pregnancy. Not everyone qualifies, and Borenstein evaluates each case individually rather than applying a one-size approach.
One misconception he addresses regularly is the belief that stem cell procedures aren't available in the United States, or that they all involve embryonic tissue. The vast majority of regenerative procedures he performs use adult mesenchymal stem cells taken from the patient's own body or derived from donated umbilical cord tissue. No embryonic cells are involved.
Where Functional Medicine and Regenerative Medicine Meet
The real strength of Borenstein's practice is how these disciplines reinforce each other rather than operating in separate lanes.
Functional medicine identifies root causes at the systemic level: gut health, nutrient deficiencies, hormonal imbalances, toxic load. Regenerative medicine addresses structural damage at the tissue level. When both are working together, a patient recovering from knee pain isn't just getting a procedure. They're also getting their inflammatory markers addressed, their nutritional deficiencies corrected, and their overall biology optimized to support healing.
That integration extends to how he thinks about treatment planning generally. Personalized care plans at his practice may include targeted supplementation, hormone optimization, dietary changes to support gut health, sleep hygiene protocols, and stress reduction strategies alongside any procedural treatments. The plan reflects the patient's specific lab findings and history, not a generalized protocol.
Borenstein is also watching the broader field of regenerative medicine closely. Induced pluripotent stem cells, which involve reprogramming adult cells into an embryonic-like state, represent what he calls the biggest leap in regenerative medicine right now. Researchers are using this technology to develop personalized therapies for conditions like Type 1 diabetes, Parkinson's disease, and macular degeneration without the risk of immune rejection. "The potential benefit is enormous," he said.
Why Patients Keep Coming Back to David Borenstein MD
Patients who find their way to Manhattan Integrative Medicine of South Florida have usually been searching for a while. They've seen specialists. They've had normal labs. They've been told to manage their expectations.
What draws them to Borenstein, and what David Borenstein MD reviews consistently point to, is the experience of being taken seriously. He doesn't dismiss unusual presentations or default to the simplest explanation. He asks more questions, runs more labs, and builds a plan that reflects the individual sitting in front of him.
His patients often arrive carrying years of frustration. The ones who respond well often describe the experience the same way: someone finally looked at the whole picture.
For Borenstein, that outcome is the one he keeps returning to. The patient who has been to ten doctors, who walks in as a last resort, and who walks out with an actual answer. "When you make them better," he said, "that is what it's all about."
This article is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before making any decisions about your health or medical care.

20260709 - Blog - Functional Medicine vs Integrative Medicine 07/10/2026

Functional Medicine vs. Integrative Medicine: What's the Difference?

If you've been researching ways to take a more personalized approach to your health, you've probably come across the terms functional medicine and integrative medicine. At first glance, they sound very similar, and in many ways they are. Both focus on treating the whole person rather than simply addressing individual symptoms.
Still, there are some real differences in how each approach evaluates a health concern and builds a treatment plan. Understanding what sets them apart can help you make sense of what you're actually looking for.
What Is Functional Medicine?
Functional medicine is built around one core idea: a single condition can have many causes, and a single cause can show up as many different conditions. Rather than stopping at a diagnosis, a functional medicine practitioner looks at how the body's systems work together and how factors like nutrition, sleep, stress, lifestyle, and environmental exposures may be contributing to what you're experiencing.
The emphasis on identifying root causes is what sets functional medicine apart from conventional care. Two patients with the same diagnosis may have entirely different underlying contributors, which is why a treatment that works well for one person may do little for another. Rather than simply asking, "What do you have?" a functional medicine practitioner also asks, "Why is this happening, and what can we do to address it?"
Root causes look different for every patient. For one person, chronic joint pain may be associated with systemic inflammation influenced by diet or lifestyle factors. For another, fatigue may be linked to a hormone imbalance or nutrient deficiency that wasn't identified during previous evaluations. Identifying these underlying contributors is often the starting point for developing a personalized treatment plan.
An evaluation usually involves a detailed conversation about your medical history, current symptoms, daily habits, and long-term goals. From there, a plan might include nutritional guidance, lifestyle changes, stress management strategies, or additional testing, depending on what comes up.
What Is Integrative Medicine?
Integrative medicine also takes a whole-person view, but its focus is a little different. Instead of leading with root-cause investigation, it combines conventional medical care with complementary therapies, blending the two rather than choosing between them.
An integrative medicine physician might recommend a conventional treatment alongside options like nutrition counseling, stress reduction techniques, or physician-directed regenerative therapies such as PRP, depending on what fits the patient's diagnosis and goals.
Where the Two Overlap
Despite the different starting points, functional and integrative medicine share a lot of the same DNA. Both emphasize:
Personalized treatment plans, not one-size-fits-all protocols
Looking beyond symptoms to the bigger picture
Lifestyle and nutrition as core parts of health, not an afterthought
Preventive care whenever possible
A collaborative relationship between physician and patient
In practice, the line between the two gets blurry fast. Many physicians, Dr. Borenstein included, pull from both rather than picking a single lane.
What That Looks Like in Real Life
Say you've been dealing with fatigue, brain fog, and weight changes that don't add up. A standard workup might come back “normal” and leave you without answers. A functional medicine approach is designed to look deeper for potential root causes that may be contributing to symptoms. Once those underlying factors have been evaluated, an integrative medicine approach may incorporate conventional medical care alongside complementary therapies to create a personalized treatment plan.
Common Reasons People Look Into Either Approach
People usually start exploring functional or integrative medicine after feeling stuck. Maybe a string of normal lab results hasn't matched how they actually feel, or maybe years of managing a chronic condition with the same prescription hasn't moved the needle. Common reasons patients seek this kind of care include:
Chronic fatigue or unexplained low energy
Digestive issues that haven't responded to standard treatment
Hormone imbalances affecting mood, weight, or sleep
Chronic pain or inflammation
A general desire for a more comprehensive, less rushed evaluation
Everyone's situation looks a little different, which is part of why a thorough first conversation with a physician matters more than the label on the door.
Which Approach Is Right for You?
There isn't a single right answer here. Some people are drawn to the investigative nature of functional medicine, while others prefer the blended approach integrative medicine offers. The good news is you usually don't have to choose. Most physicians who practice one tend to borrow from the other depending on what a patient actually needs.
What matters more than the label is finding a physician who actually takes the time to listen, asks the right questions, and is willing to keep digging when the easy answer doesn't fit. That's usually a better predictor of whether you'll get real results than whether your doctor calls their practice functional, integrative, or both.
At Manhattan Integrative Medicine of South Florida, Dr. David Borenstein takes a personalized approach to care, recognizing that no two people arrive with the same history or the same goals. If you're curious whether either approach might be a good fit for what you're dealing with, it's worth a conversation. Call (754) 247-0122 to learn more.
A Final Thought
Healthcare doesn't have to feel like a series of rushed appointments and one-size-fits-all prescriptions. Whether you're drawn to the deep investigative work of functional medicine or the broader, more flexible toolkit of integrative medicine, both approaches share the same underlying belief: that your symptoms are worth understanding, not just managing. Taking the time to find a physician who shares that belief can make all the difference in how you feel, both today and years down the road.

20260709 - Blog - Functional Medicine vs Integrative Medicine Functional Medicine vs. Integrative Medicine: What's the Difference? If you've been researching ways to take a more personalized approach to your health, you've probably come across the terms functional medicine and integrative medicine. At first glance, they sound very similar, and in many ways ...

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