Redefining Health. Redefining Longevity.

Concierge medicine, physician-guided weight loss, and hormone optimization designed for lasting vitality.

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Medical Director and Founder of Longevity LAB MD

Dr. Margarita Ibañez de Sendadiano is a board-certified Internal Medicine physician with over 18 years of clinical experience. She is also certified through the Age Management Medicine Group (AMMG) in advanced, evidence-based strategies for longevity, preventive, regenerative, weight loss, and peptide therapy.

Early in her career, Dr. Ibañez recognized a critical flaw in traditional healthcare: a system focused on treating illness after it appears, while neglecting both prevention and the root causes of disease. Driven by this insight, she has dedicated her practice to redefining health care—placing disease prevention, reversal, and optimization at the forefront of patient care.

Her approach integrates cutting-edge science with compassionate, personalized medicine. By utilizing advanced biomarker testing, Dr. Ibañez identifies and corrects metabolic and hormonal imbalances that accelerate aging and disease. Her mission is not only to extend lifespan, but to expand health span—helping patients enjoy more years of vitality, resilience, and energy.

Through a combination of precision diagnostics, hormone optimization therapy, metabolic health optimization, regenerative therapies, lifestyle interventions, and peptide optimization, Dr. Ibañez empowers her patients to take control of their health and achieve peak well-being at every stage of life--

Margarita Ibañez MD

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Comprehensive Medical Care, Designed for You

Hormonal
Balance

Optimize hormones for energy, vitality, and metabolism.

Metabolic Health & Weight Management

Maintain healthy body composition, insulin sensitivity, and fat metabolism.

Advanced Diagnostics & Screening

Early detection and prevention via labs, DEXA, MRIs, liquid biopsy, and genomic testing.

Regenerative & Cellular Support

Peptides, IV therapies, Hocatt, and lifestyle interventions that support cellular health.

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At Longevity Lab MD, we believe medicine should be proactive, not reactive. Our programs blend advanced science, longevity insights, and concierge-level access so you can live stronger, longer.

Medicine Tailored to You

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  • A healthcare professional wearing pink gloves is drawing blood from a patient's arm using a syringe, with a blood collection tube attached.

    Initial Diagnostic Consultation

    Our Initial Diagnostic Consultation is a comprehensive health assessment designed to uncover underlying risk factors and provide a clear picture of your overall wellness. Through advanced lab testing, medical history review, and lifestyle evaluation, we create a personalized roadmap for preventive care, early detection, and long-term health optimization.

  • A healthcare professional in a white coat holding a stethoscope with digital medical icons and hexagons displayed in a futuristic style.

    Concierge Medicine

    Our Concierge Medicine service offers direct, personalized access to your physician with same-day or next-day visits, extended appointments, and 24/7 availability. With advanced screenings, ongoing monitoring, and tailored treatment plans, we ensure proactive, relationship-based care that prioritizes your long-term health and well-being.

  • Two women sitting on a yoga mat face each other, holding hands with legs extended and feet pressed together. Overlaid with a diagram labeled 'Hormone Balance' showing interconnected circles for estrogen, progesterone, testosterone, and cortisol.

    Hormones

    Balanced hormones are the foundation of energy, vitality, and optimal health. We offer customized hormone therapies, including bio-identical hormone replacement, to address symptoms like fatigue, weight gain, low libido, and mood changes. With individualized treatment plans guided by comprehensive testing, we help restore balance and support long-term wellness.

  • Three bottles of dietary supplements, each labeled with different support functions: control, detox, regulate. The control bottle supports metabolic, thermogenic, hunger, and hormone support with 60 vegetarian capsules. The detox bottle supports liver and kidney support with 90 capsules. The regulate bottle supports glucose stabilization and GLP-1 support with 60 capsules.

    Thinnr

    THINNR® is a 6-week, provider-supervised weight loss program designed as a natural alternative to GLP-1 medications. Combining an FDA-registered homeopathic formula with a structured nutrition plan, THINNR supports appetite control, metabolic balance, stress reduction, and fat loss — giving you sustainable results without compromising health.

  • A small glass vial labeled "Longevity LAB MD" sitting on a white surface with plain light-colored background.

    Weight Loss Peptides

    We utilize advanced peptide therapies to support safe, effective, and lasting weight loss. Options like Semaglutide, Tirzepatide, and other metabolic peptides help regulate appetite, improve fat metabolism, preserve lean muscle, and enhance energy. Combined with medical guidance, peptide therapy empowers long-term success in achieving your health goals.

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  • “Truly life-changing care.”
    I came to Longevity Lab MD for the Initial Diagnostic Consultation, and I was blown away by how thorough it was. Instead of rushing through my appointment, the physician took the time to review every aspect of my health and explain what my labs meant. For the first time, I feel like I have a clear plan to improve my long-term health.

    — Sarah M.

  • “Concierge medicine the way it should be.”
    Having 24/7 access to my doctor has been a game-changer. When I needed a same-day visit, it was arranged without any hassle. The level of attention and personalized care I received makes me feel like a priority, not just a number. This is the kind of healthcare everyone deserves.

    — James R.

  • “Hormone therapy gave me my energy back.”
    I struggled for years with fatigue, weight gain, and poor sleep. After starting bio-identical hormone replacement therapy at Longevity Lab MD, I feel like myself again. My energy is back, I’m sleeping better, and even my mood has improved. I can’t recommend them enough.

    — Maria I.

  • “Finally, sustainable weight loss.”
    I tried every diet out there, but nothing worked long-term. With the Thinnr program and peptide support, I lost weight safely and consistently, and I’ve kept it off. The guidance, accountability, and medical supervision made all the difference.

    — Daniel K.

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