Dr. Tania Dempsey

Dr. Tania Dempsey Dr. Tania Dempsey founded AIM Center For Personalized Medicine (AIM) in Westchester County, NY.

04/28/2026

The Washington Post is wrong about tick bites, and it could cost you.

They're telling people not to test the tick. Testing through TickCheck or TickReport tells you exactly what the tick was carrying and how long it was attached. That information changes everything about how we treat.

One-time doxycycline prophylaxis isn't the answer either.

Share this with someone who needs to know this 💜

Comment "TICK" and I'll send you my guide on what you should actually do after a tick bite 👇

04/24/2026

Estrogen triggers mast cells. Progesterone stabilizes them.

Every hormonal swing, especially in perimenopause, can send mast cells into chaos. Dysfunctional bleeding, PMS, mood disturbances, these might not be purely hormonal. They might be mast cell driven.

Share this with someone whose cycle has always felt like more than just hormones 💜

Comment "LOTTE" and I'll send you my podcast with Dr. Lotte going deep on this 👇

04/24/2026

Your medications might be making your MCAS worse.

Not the active ingredient. the fillers. Dyes, microcrystalline cellulose, titanium dioxide, povidone — the inactive ingredients most people never think to look at.

If your mast cells are still reacting and you can't figure out why, start reading the full ingredient list on everything you take.

Share this with someone who's tried everything and still can't get stable 💜

04/23/2026

A child with autism. Underlying MCAS. One common antihistamine.

He started making eye contact.

Mast cells line the entire gut, and when they're dysregulated, the impact on the brain can be profound. This is why we never stop looking for root causes.

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04/22/2026

If Xanax or Ativan calms you down fast, it might not be anxiety.

Benzodiazepines can bind to mast cells and stabilize them. For some people what looks like anxiety is actually mast cell activation — and the benzo is working because it's calming the mast cells, not the mind.

Share this with someone whose "anxiety" has never fully made sense 💜

Comment "ASPREY" and I'll send you my podcast with Dave Asprey going deep on this 👇

04/21/2026

In a POTS flare? Start here.

Find your trigger. Blood sugar swings are a major one.

Hydrate with electrolytes. 3-5g of salt a day minimum.

Compression stockings, legs elevated. Unglamorous but it works.

Share this with someone managing POTS day to day 💜

Comment "POTS" and I'll send you my full blog post — there's a lot more where this came from 👇

04/19/2026

Three groups. Three very different COVID outcomes.

Healthy patients, normal response, full recovery. Treated MCAS patients — mast cells under control, similar outcome. Untreated MCAS patients, already running with inappropriately activated mast cells before COVID ever hit.

That third group is where long COVID lives.

If you had undiagnosed MCAS going into COVID, your mast cells were already primed to overreact. The virus didn't create the problem, it exposed it.

Share this with someone still trying to understand why their COVID recovery went differently 💜

Comment "TREATMENT" and I'll send you my podcast covering the treatments I've been using for Long COVID and MCAS 👇

04/17/2026

Everyone is talking about muscle loss from GLP-1s. Here's what they're missing.

The studies showing muscle and bone loss? Sedentary patients on high doses. That's not how we use them.

When microdosed and combined with resistance training, we're actually seeing muscle gains — measurable ones. Less fat, more muscle, less inflammation. And that's in patients who aren't even taking them for weight loss.

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Comment "GLP-1" and I'll send you my article with everything you need to know 👇

04/17/2026

Diagnosed with SIBO. Tried Xifaxan. Tried herbal protocols. Still not better.

For some patients, it was never really SIBO.

Mast cells line the entire GI tract, and when they're dysregulated, even water can trigger an inflammatory response that looks exactly like SIBO. The bloating, the reactivity, all of it.

One patient treated with Cromolyn alone. SIBO symptoms gone.

Share this with someone stuck in the SIBO cycle with no answers 💜

Comment "SIBO" and I'll send you my podcast going deep on this 👇

Stop calling everything histamine intolerance 🚫⁣⁣This term gets used far too broadly and while it can certainly exist, t...
04/16/2026

Stop calling everything histamine intolerance 🚫⁣

This term gets used far too broadly and while it can certainly exist, the reality is that many patients labeled this way are actually dealing with something much more complex.⁣

When someone’s symptoms don’t improve with antihistamines, DAO enzymes, or a strict low-histamine diet, it’s worth asking a bigger question 👉 Is this really a histamine problem… or are mast cells involved?⁣

Both of these conditions can look very similar but the underlying biology and treatment approach can be very different.⁣

In my clinical expertise, many patients who were told they have histamine intolerance actually have MCAS at the root. When that distinction is missed, patients often continue to struggle without getting the care they truly need.⁣

How many of you were first told you had “histamine intolerance” before learning about mast cell activation? 🤯

04/16/2026

Your anxiety might not be a mental health problem.

It could be a physiological response, and if mast cells are involved, tools like Benadryl or Claritin might do more for your anxiety than an SSRI ever did.

The more psychiatrists understand this, the better it gets for patients.

Share this with someone who's been told it's all in their head 💜

Comment "ASPREY" and I'll send you my podcast with Dave Asprey going deep on this 👇

👉💬 FREE MASTERCLASS ⁣If you’ve ever been told “your labs are normal” but you still don’t feel like yourself, you’re not ...
04/15/2026

👉💬 FREE MASTERCLASS

If you’ve ever been told “your labs are normal” but you still don’t feel like yourself, you’re not alone.⁣

And more importantly, you’re not wrong ‼️⁣

So many patients start to question themselves at that point. You think, maybe it’s stress. Maybe it’s in my head? Maybe this is just how I’m supposed to feel?⁣

It’s not.⁣

Your body is not working against you. It’s communicating with you.⁣

Every symptom, every flare, every “unexplained” reaction is information.⁣

The issue isn’t that nothing is wrong, it’s that what’s happening isn’t always visible on standard labs.⁣

There is a reason you feel the way you do. There is a pattern. And there is a path forward.⁣

You just need the right lens to see it.⁣

My free masterclass is available for you to watch whenever you need, and it will help you get the truth about MCAS: what matters, what doesn’t, and how to take control of your health.⁣

👉💬 https://drtaniadempsey.com/mcas-inflammation-glp-1-replay/

Address

3010 Westchester Avenue Suite 404
Purchase, NY
10577

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My Story

I've always been driven to treat patients who are unable to get answers about their health from other doctors. I refer to the phenomena as “mystery-illness” patients. These patients have complex, chronic illnesses that no one else has been able to figure out. This has become my niche and I believe that is because I think outside the conventional box of medicine.

I know that these patients are sick and I know there's something wrong, and I desperately want to figure it out for them.

While I’ve always been passionate about helping patients get to the root cause of their illness, my practice and understanding of the human body has evolved through my personal experiences.

When I first started my integrative medicine practice nine years ago, I was introduced to Dr. Richard Horowitz, when we spoke at a conference together. I was overwhelmed in a good way by the information that he presented, and I vividly remember the conversation I had with him afterwards. He knew that I was practicing medicine in Westchester County, NY, a suburb of New York City, which is endemic for Lyme disease.