You deserve more

At De Leon Precision Medicine, we welcome individuals who are ready to be truly heard, deeply understood, and fully supported on their path to wellness. Founded by a board-certified physician who saw the limitations of conventional care firsthand, Dr. De Leon offers a smarter, more human approach—rooted in advanced diagnostics, deep listening, and a genuine partnership in your healing journey. Whether you're struggling with fatigue, hormonal imbalance, gut issues, or unexplained symptoms, our mission is simple: to uncover what’s really going on and guide you toward lasting, vibrant wellness.


than rushed appointments and one-size-fits-all answers.

I’m a physician, mom, partner, daughter, sister, and friend. Like many of the patients I care for, I wear many hats in life and understand how essential it is to live in optimal health—not only for yourself, but also for your family and your future.

My path into medicine began with a deep appreciation for how nutrition and movement shape our long-term wellbeing. Early on, I saw how profoundly lifestyle choices influence vitality and resilience, leading me to earn a degree in Dietetics and Nutrition. That training deepened my fascination with human physiology and ultimately inspired my journey into medicine. I chose Emergency Medicine as my specialty because I was drawn to its immediacy and its power to save lives in critical moments.

Over time, I also came to recognize that many of the emergencies I treated could have been prevented with earlier, more personalized care. That realization strengthened my belief that prevention, precision, and proactive guidance are what truly change health trajectories—long before a crisis ever unfolds.

This understanding inspired me to expand my training into functional and precision medicine, so I could empower patients to take an active role in their health. My focus is on uncovering root causes and preventing illness before it becomes a crisis. I pursued advanced education through the American Academy of Anti-Aging Medicine, the Institute for Functional Medicine, and Columbia University’s Obesity Medicine program—bringing together the best of conventional medicine with cutting-edge, root-cause approaches.


Board certified physician with advanced training through the American Academy of Anti-Aging & Regenerative Medicine and Columbia University’s Obesity Medicine program. 

Blending Modern Medicine with Root-Cause Healing

Meet Dr. Marilin De Leon, DO

Hi, I’m Dr. Marilin De Leon

Today, I blend my emergency medicine foundation with a proactive, personalized, and prevention-focused model of care. My goal is simple: to walk alongside you as a partner in your journey—helping you reclaim your vitality, prevent disease, and live a life rooted in health, intention, and purpose.

Our Mission and Values

At De Leon, we believe true healing begins with connection. Our approach is designed to bring meaning back to medicine—through thoughtful time, trusted expertise, and care that truly sees you.


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Our Mission


To restore trust, depth, and intention to the patient-doctor relationship through personalized, integrative care.

Our Values


Time, compassion, science, and partnership—all working together to support your long-term health and vitality.


At De Leon Precision Medicine, we believe true healing begins with feeling heard, understood, and cared for. Our process is designed to guide you step by step—so you never feel rushed, overwhelmed, or alone.


Our Process: What to Expect

We offer a complimentary 15-minute discovery call—just click the “Book With Me” page if you'd like to connect before committing.

We begin with an unhurried, thoughtful conversation about your story, your struggles, and your goals. This is where trust is built. Together, we’ll map out an initial plan that feels realistic, supportive, and aligned with the life you want to create. You’ll also receive a body composition analysis InBody 380 to give us a clear picture of where you are today.
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1. Your First Deep Dive – 75 Minutes

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Next, we gather deeper insights through advanced lab testing and diagnostics. These help us see what’s happening in your body—hormone balance, gut health, inflammation, metabolism—so we can uncover the “why” behind your symptoms.







2. Looking Beneath the Surface

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When your results return, we meet again to refine your care. This may include thoughtful adjustments in nutrition, lifestyle, bioidentical hormones, peptides, or other supportive therapies. Your plan is never generic—it’s created just for you and evolves as you do.







3. Refining & Personalizing Your Plan

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Your journey doesn’t end with a plan—it grows with you. We’ll continue walking alongside you, celebrating progress, adjusting as needed through follow up visits that can range from 30-60 minutes depending on your needs, and making sure you always feel supported, informed, and empowered.







4. Ongoing Support & Guidance

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At De Leon Precision Medicine, we’ve reimagined what healthcare should feel like: more time, deeper listening, smarter testing, and care that sees the whole person—not just the lab results. With years of experience in fast-paced medical environments, Dr. De Leon has built a boutique practice where healing is personal, thoughtful, and grounded in both science and soul. Whether you're visiting in person or meeting virtually, you'll never feel rushed or overlooked.
Here’s how we’re redefining modern medicine:





At De Leon Precision Medicine, we don’t follow the status quo—we redefine it.

What Sets Us Apart

Ready to experience medicine that’s built around you?


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Fluent in English and Spanish, and licensed in multiple states—including Florida, New York, California, Texas, North Carolina, Pennsylvania, and Ohio—we provide inclusive care through both in-person and virtual telehealth visits, so you can get the support you need, wherever you are.




With board certifications in both conventional and integrative medicine, Dr. De Leon brings together the best of both worlds—treating the whole person, not just isolated conditions.



We combine conventional diagnostics with advanced functional testing to uncover the root causes of your symptoms—and create strategic, science-backed treatment plans designed to last.



We’re not a clinic—we’re a sanctuary for personalized care. Every visit is intentional and unhurried, every plan is built just for you, and every step is guided by compassion and expertise.


01. Boutique Experience

03. Dual Expertise

04. Bilingual & Virtual Access

02. Integrative Precision

Modern care. Rooted in connection, backed by science, delivered with heart.

Board Certifications & Advanced Training

Behind every badge is a dedication to better outcomes, deeper listening, and medicine that meets you where you are.

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We combine cutting-edge lab testing, advanced diagnostics, and evidence-based integrative therapies to craft care plans that align with your biology, lifestyle, and goals. We take time to educate, guide, and support you—because healing happens best when you’re not rushed or unheard.