Functional Medicine Doctor in New York, NY

What is Functional Medicine?

Functional Medicine NYC

So many patients come in to Manhattan Integrative Medicine because they’ve heard an amazing recovery story from a friend. But they still ask: What is functional medicine?

Dr. Borenstein likes to cite the Institute for Functional Medicine's clear and simple MO: “One condition, many causes. One cause, many conditions.”

Functional medicine is evidence-based healthcare that targets the root cause behind your symptoms, rather than merely suppressing them indefinitely.

That's why Dr. Borenstein will always take the time to determine how and why your illness developed, before restoring your health by addressing its root cause.

This requires being a bit of a medical detective – searching for connections between symptoms that may at first glance seem unrelated, but that turn out to share the same root dysfunction. It requires crafting whole body treatments for your unique biological ecosystem – not for some average patient on a statistics chart. Dr. Borenstein was a functional medicine doctor 20 years ago – long before it was trendy – so it's become second nature for him.

He understands that your body's organs and systems function synergistically, not simply as rogue operators in a biological wilderness. He targets your dysfunction as part of a holistic ecosystem, and treats you as a whole person, not just the sum of your symptoms.

Don't waste time and money with options that only address surface issues. You need a doctor who's mastered the science and art of the customized treatment protocol which resolves the dysfunctions behind your symptoms with patience and compassion.

The future of medicine is here!

Check it out by calling Manhattan Integrative Medicine today at ☎ (212) 262-2412 or contact us here.

What do Functional Medicine doctors do?

When conventional doctors assess a nutrient or hormone level they see it falls inside the “normal range,” then tell you you're fine – despite the fact that you're clearly suffering symptoms. This can leave you struggling with the same chronic conditions for years, specialist appointment after specialist appointment – each one looking only at the organ or system he or she was trained to treat.

Functional medicine doctors treat the whole you – until your symptoms are gone.

Dr. Borenstein has become a local celebrity of sorts, for applying his distinct functional approach to identify and target:

Adrenal Fatigue

Chronic stress, insufficient sleep and poor diet can overstimulate your adrenal glands, disrupt your cortisol and DHEA levels, and cause debilitating pain and fatigue.

Read More about Adrenal Fatigue


An underactive thyroid that is unable to produce the amount of thyroid hormones your body requires, causing weight gain, fatigue, muscle weakness, high cholesterol, joint pain or stiffness, and depression.

Read More about Hypothyroidism


Chronic muscle shortening caused by either nerve chemical signals in the spinal fluid or by explosive synchronization (ES) that stimulate a hyperactive brain to experience extreme pain, stiffness and recurring infections.

Read More about Fibromyalgia


Inflammation of one or more joints causing pain, stiffness and immobility.

Read More about Arthritis

Small Intestine Bacterial Overgrowth (SIBO)

Food fermentation that causes severe postprandial bloating and diarrhea.

Read More about SIBO

Crohn's Disease

Inflammation of the digestive tract which can lead to abdominal pain, severe diarrhea, fatigue, weight loss and malnutrition.

Read More about Crohn's Disease

Hormonal Imbalances

Andropausal men and men with low T require testosterone supplementation with BHRT; menopausal women may require estrogen, testosterone, and progesterone supplementation with BHRT.

Polycystic Ovary Syndrome

A hormonal disorder that can cause infrequent or prolonged menstrual periods or excess androgen levels, and irregular release eggs by ovary follicles.

Read More about Polycystic Ovary Syndrome

Dr. Borenstein also knows how to treat hormone imbalance during the natural life stages of menopause and andropause, and excels at chronic pain treatment as well as mitigating the effects of insomnia.

Your Functional Medicine Treatment Plan

First, Dr. Borenstein will listen. He'll examine you, review your medical history and order any required bloodwork.

Once he has detected your root cause, he may explain in detail, then deliver one or more or the following:

As with any medical treatment, your results will vary based on your age, genetics, general health, environmental conditions, and follow up care.

Reserve Your Appointment

Don't get stuck in the last century. Treat your whole body to the functional medicine solution. Schedule an appointment with Dr. Borenstein today at ☎ (212) 262-2412 or contact us here.

Contact Us



308 5th Ave, 5th Floor
New York, NY 10001


(212) 262-2412


(212) 262-2416


Monday - Thursday: 8:00am - 5:00pm
Friday: 9:00am - 5:00pm
Saturday - Sunday: Closed