Thyroid Doctor NYC | Thyroid Specialist NYC
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Millions of people in the United States have thyroid disease, and millions more have low thyroid, yet are undiagnosed.

In fact, thyroid disease is now an epidemic in this country, and the numbers are growing. Dr. Raphael Kellman is recognized as a leader in the field of thyroid disease, both in his expertise in treatment and also in his ability as a thyroid doctor in NYC, through more expansive testing, to diagnose hypothyroidism frequently missed by routine tests. He is internationally known for his expertise in what has been proven to be the most accurate thyroid test, the TRH Stimulation Test.


  • Fatigue
  • Weight Gain
  • Poor Memory
  • Brain Fog
  • Poor Concentration
  • Difficulty Sleeping
  • Constipation
  • Irregular Periods
  • Hair Loss
  • Depression
  • Cold Intolerance
  • Tingling and Numbness
  • Joint and Muscle Pain
  • Unexplained Symptoms (which might include aches, pains, feeling “old” or “off,” sluggish metabolism, skin problems)

Many of these symptoms can also be associated with high cholesterol, hypertension, gall bladder disease, heart disease, metabolic syndrome or diabetes. But even having just ONE of these symptoms can indicate a thyroid imbalance, making it crucial to consult with a thyroid doctor in NYC.

If you are feeling any of these symptoms, or if you’ve been to other doctors who have tested your thyroid and the result was “normal,” you still may have a low thyroid. Based on Dr. Kellman’s groundbreaking TRH Stimulation Test, thousands of people have been diagnosed with low thyroidism even though their previous tests were normal. The TRH Stimulation Test detects low thyroid missed by routine tests.


The TRH Stimulation test is the best thyroid test – yet unfortunately, many practitioners (even functional medicine doctors) do not offer it. If you have any thyroid-based concerns – even if your doctor has told you that your numbers are “normal” – but you instinctively know that something is not right, the TRH might very well uncover a previously unseen thyroid imbalance when performed by a thyroid specialist in NYC.

Millions of people in the United States have thyroid disease, both autoimmune (in which the body’s own immune system attacks the thyroid) and non-autoimmune. Different iterations of thyroid disease include Hashimoto’s disease (autoimmune hypothyroidism), Graves’ disease (autoimmune hyperthyroidism), and non-autoimmune thyroid imbalances. In addition, pregnancy and menopause can also affect thyroid function.

While most doctors say that Hashimoto’s is the main cause of low thyroid, Dr. Kellman argues that it’s actually endocrine disruptors that cause low thyroid, making him a leading thyroid doctor in NYC.


The first step in treating Hashimoto’s is to understand that endocrine disruptors are everywhere:

  • Personal hygiene products
  • Poultry
  • Antibiotics
  • PPI’s and other medications
  • Birth Control Pills
  • Processed foods

…and the list goes on and on.

Dr. Kellman’s approach as a thyroid specialist in NYC is to get to the root cause of Hashimoto’s by eliminating as many endocrine disruptors as possible, and more significantly, by repairing and restoring the microbiome which has been damaged. These disruptors cause inflammation which can produce antibodies to attack its own tissue, including the thyroid, which can lead to Hashimoto’s.

Dr. Kellman, founder of “Microbiome Medicine” is known worldwide as the expert in treating the microbiome using advanced treatment protocols, including individualized targeted probiotics and prebiotics, potent IV therapy, and natural compounds to modulate and balance the immune system – all work together to heal the microbiome from within. When the gut wall is improved, inflammation subsides. Dr. Kellman and the PA’s that he has personally trained also use this approach for Graves Disease and any thyroid issues.

NTIS, or Non-Thyroidal Illness Syndrome, affects many people with low thyroid as well. Symptoms such as unexplained fatigue, brain fog, memory decline, decreased executive function, even dementia, can all be traced to NTIS.

The Kellman Center in New York has changed the lives of thousands of patients using this treatment protocol and this superior testing method. Please call our office at 212-717-1118 to find out how the Kellman Center can help you.