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Dr. Tania Tyles Dempsey

Dr. Tania Dempsey | Mast Cell Activation Doctor NY

Dr. Tania Dempsey is an expert in chronic disease, autoimmune disorders and mast cell activation syndrome. Dr. Dempsey is sought after internationally for her knowledge of chronic immune dysregulation, and has attracted patients from Israel, England, Thailand and France. Dr. Dempsey uses integrative medicine to get to the patient's root cause(s) of their illness.  Her purpose is to understand why people get sick and to help patients understand their body and why it fails them when it does.

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Dr. Dempsey received her MD from The Johns Hopkins University School of Medicine and her BS degree from Cornell University. She completed her Residency at NYU Medical Center/ Bellevue Hospital and then served as an attending physician at a large multi-specialty medical practice in White Plains, NY, before opening AIM Center for Personalized Medicine. Dr. Dempsey specializes in autoimmune disease, MCAS, and chronic illness.  She is a staff member of Greenwich Hospital in Greenwich, Connecticut. She is also a member of the Institute for Functional Medicine (IFM) and the American College of Physicians, and holds a certificate in Vanguard Endocrinology. Dr. Dempsey is Board Certified in Internal Medicine and a Diplomate of the American Board of Integrative and Holistic Medicine.



AIM Center for Personalized Medicine specializes in complex diseases that affect multiple body systems (multisystemic).  Our functional medicine approach is very comprehensive and we believe that uncovering the root cause or causes of illness will lead to more successful medical and treatment.  Our holistic treatment strategies are integrative and can include pharmacologic and/or nutraceutical, herbal, or homeopathic products.  We offer intravenous therapy for a variety of conditions as well.   In addition to treating patients, we believe in the importance of education for both patients and medical practitioners.  AIM offers individualized training programs for practitioners and students.  We are in the process of creating a research division of the center so that we can further our knowledge of multisystemic diseases.




Aim Center for Personalized Medicine is a destination wellness center. At AIM Center for Personalized Medicine, our mission is to prevent chronic disease. We specialize in getting to the root of the root cause of your illness.  Patients come to us from all over the world who cannot get a definitive diagnosis from other doctors. As experts in mystery illnesses, we focus on the story behind the symptoms. Our goal is to help patients understand the role the toxic environment is playing in our health and to learn how to find ways to cope with it through functional medicine. The center is dedicated to Lilia and Luba. 




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Dr. Tania Dempsey | Mast Cell Activation Doctor NY
Dr. Tania Dempsey | Mast Cell Activation Doctor NY
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Dr. Tania Dempsey | Mast Cell Activation Doctor NY

Most Doctors Treat The Symptoms

 I Treat The Cause Of The Symptoms. 


I will analyze every single data point to see where the connections are. 


I am a biotoxin detective dedicated to the well-being and physical health of my patients.


I want to help patients understand their body and why they get sick.

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