Apostol Integrative and Functional Medicine

The kind of care you
have been looking for

At Apostol Integrative & Functional Medicine, we don’t just treat symptoms — we ask why they exist. Experience healthcare that’s truly personal, proactive, and built around you.

7+ Years

Functional Medicine Practice

10

Specialty Services

Whole

Person Approach

I believe healing happens when we treat the whole person — not just isolated symptoms.

— Dr. Margaret Apostol, MD

WE’RE HONORED TO BE NOMINATED

Best of Flower Mound 2026

Thank you for supporting our mission to provide compassionate, whole-person care. We’re proud to be nominated for Living Magazine’s Best of Flower Mound 2026!

"Medicine that meets you where you are."

We understand what it feels like to be told your labs are “normal” when you still feel far from well. Dr. Apostol combines the rigor of conventional medicine with a root-cause, systems-based approach — going deeper, asking better questions, and building care plans that actually work for your life.

Our Services

Specialized treatments for
every aspect of your health

From foundational wellness to specialized therapies, every service is delivered with the same root-cause philosophy and genuine care.

Where your health journey begins

Foundation & Primary Care

Your health starting point - where prevention meets deep investigation.

Health & wellness · Prevention · Chronic disease
Gut health · Autoimmune · Toxin testing
Full panel · Hashimoto’s · T3 conversion

For patients who want their life back

Hormone & Metabolic Health

Balance your body from the inside out - energy, weight, and vitality restored.

HRT for women · TRT for men · Fixing Hormonal Imbalances
GLP-1 · Metabolic care · Doctor-Supervised
Anti-aging · Healing · Hormone support · Performance

Think sharper. Live longer

Brain & Longevity

Protect and optimize your most vital organ - starting long before symptoms appear.

Cognitive optimization · Alzheimer’s prevention
Immune modulation · Anti-inflammatory · Healing
Nutrient infusions · Energy · Recovery · Immunity

Look as good as you feel

Aesthetics & Renewal

Look and feel like the best version of you - beauty and health, beautifully connected.

Refresh, restore, and renew – from the inside out
Volume · Contouring · Natural results
Skin rejuvenation · Hair restoration · Regenerative
Margaret Apostol

“I built this practice because I wanted to practice medicine the way I always believed it should be done. With time, curiosity, and genuine care for the person in front of me.”

— Dr. Margaret Apostol, MD

Dr. Margaret Apostol, MD

Board-Certified Family Physician · Integrative & Functional Medicine

Dr. Margaret Apostol’s path into medicine started with a simple belief – that keeping people healthy matters more than treating them once they’re sick. As an undergraduate studying Nutrition Sciences, she was already convinced that medicine and wellness belonged together. Medical school and residency gave her the clinical foundation she needed, but also revealed a gap she couldn’t ignore: conventional medicine rarely had time for prevention, root-cause thinking, or the kind of care that actually gets to the bottom of things.

Early in her career, she kept seeing the same story – patients frustrated, exhausted, and told their labs were fine when they clearly weren’t. That became her turning point. For the past seven years, she has built a practice that combines the rigor of conventional medicine with a functional, systems-based approach to healing. Dr. Apostol’s goal is not just to manage your symptoms – it’s to understand why they exist and help you build a foundation for lasting, vibrant health.

Why Choose Us

A different kind of
medical experience

Conventional vs.Apostol IFM

Patient Stories

Hear it from those
who've been here

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Yokubō profile picture
Yokubō
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Words are not nearly enough for how grateful and incredibly life changing it has been seeing Dr. Apostol and her staff. I spent MANY years going from doctor to doctor and no one could figure out the reason for my illness as I progressively got worse. I was in tears when Dr. Apostol figured it out. She and her staff listen, care, and all are absolute angels! My health has improved tremendously and I am finally getting my life back! For those reading this, please be patient with yourself on this journey. It took you a long time to get unwell and it will take you a while to start feeling better again. Yes, it is pricey but you would have paid more being sick. Invest in yourself and your health. Thank you all SO MUCH for everything you do!! I recommend everyone, especially those with chronic illnesses to Dr. Apostol! I absolutely love yall!!
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Philip Pflaum profile picture
Philip Pflaum
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I have been under Tabatha's care for a few months now. I'm so grateful for her knowledge, compassion and her as a person. She really explains what my lab results show and what steps we need to take to help me be the healthiest me possible. She also makes sure any questions are answered. The whole team at Apostol IFM is amazing!
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Melissa Hackett
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The level of care and compassion were evident from the moment you’re greeted. Thorough and knowledgeable, follow through, after checks are all superb.
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Jolie Stepp profile picture
Jolie Stepp
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Beyond grateful for Tabitha at Apostle IFM. 16 years of asking for help from doctors and only getting more medication. Now we have answers and solutions for our son. I feel like we’re finally on the track of healing for him.
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Justin Critton profile picture
Justin Critton
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This is what healthcare should look like. I love this practice.
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Karina Santiago Rodriguez profile picture
Karina Santiago Rodriguez
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I used to suffer from insomnia, or when I finally got to sleep, I would wake up at 3 or 4 a.m. and couldn't sleep anymore. Now, after several months, I can sleep through the night and even take naps. I've gotten my sleep back and I no longer feel tired.
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Valerie Bruno profile picture
Valerie Bruno
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Best doctor ever
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Ariel Lindsey profile picture
Ariel Lindsey
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We have only seen Tabatha Durand, N.P. here. AND I can’t say enough good things about her. She goes over and beyond to care for our health! My little son has had gut issues resulting in what seemed like allergies for the first few years of his life. She ran special labs to investigate and ,thusly, put him on a route to heal his gut. He’s doing great now! She has taken special time to aid my husband through his health needs as well. We are excited to see what comes of it. I can’t recommend her and Apostol enough! They can help change your life! It can seem expensive, but they actually care and WILL do what they can to help you. Worth it!
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sarai uniforme profile picture
sarai uniforme
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Extraordinary service, I feel so much better after having my visit. The best way is the natural way.

Ready to take control of
your health?

Not sure where to start? That’s okay. Most of our patients weren’t either. Reach out and let’s just talk – no pressure, no obligations, just a real conversation about how you’re feeling and what you’re looking for.