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Longevity Primary Care — Designed for Long-Term Health

Evidence-based, physician-led care that goes beyond traditional primary care

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FEEL BETTER, LIVE LONGER

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At Austin Functional Medicine, we take a proactive approach to primary care — focused on prevention, clarity, and long-term health.

Many patients feel unheard in traditional care settings. Visits are brief, labs are reviewed quickly, and symptoms are treated individually. We offer a different model.

Our approach includes longer visits, deeper evaluation, and a structured plan tailored to your unique physiology. We assess patterns across systems — not just isolated symptoms — to better understand what’s affecting how you feel.

From advanced lab analysis to personalized treatment strategies, our goal is to help you improve energy, restore balance, and support long-term health.

OUR SERVICES

Explore our integrated services — designed to work together as part of your personalized care plan.
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Functional Medicine Consults
Comprehensive, clinician-led evaluations focused on identifying root causes and building a structured plan for long-term health.
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IV & IM Nutrient Therapy
Physician-guided nutrient therapy used when clinically appropriate as part of your personalized treatment plan.
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Longevity Primary Care
A smarter approach to primary care — focused on long-term health, not just symptoms.
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CORE VALUES

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Evidence-Based Integrative Care
Our board-certified providers go beyond prescriptions: we listen to your story, uncover root causes of fatigue or illness, and personalize a wellness plan just for you. All in a welcoming clinic environment that accepts your insurance.
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Preventive Wellness & Longevity
Our board-certified providers go beyond prescriptions: we listen to your story, uncover root causes of fatigue or illness, and personalize a wellness plan just for you. All in a welcoming clinic environment that accepts your insurance.
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Accessibility & Affordability
Our board-certified providers go beyond prescriptions: we listen to your story, uncover root causes of fatigue or illness, and personalize a wellness plan just for you. All in a welcoming clinic environment that accepts your insurance.
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Patient-Centered
Our board-certified providers go beyond prescriptions: we listen to your story, uncover root causes of fatigue or illness, and personalize a wellness plan just for you. All in a welcoming clinic environment that accepts your insurance.
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Compassionate, Trustworthy Care
Our board-certified providers go beyond prescriptions: we listen to your story, uncover root causes of fatigue or illness, and personalize a wellness plan just for you. All in a welcoming clinic environment that accepts your insurance.
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Innovation & Continuous Learning
Our board-certified providers go beyond prescriptions: we listen to your story, uncover root causes of fatigue or illness, and personalize a wellness plan just for you. All in a welcoming clinic environment that accepts your insurance.
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Our team brings together decades of medical experience across emergency medicine, internal medicine, and preventative care, with training from institutions including Harvard, Yale, and Boston University. Board-certified physicians and experienced clinicians, we combine strong clinical foundations with a modern, longevity-focused approach to care.

Hachem Dadoush, MD
Dr. Dadoush graduated from Damascus Medical School in 1989 and continued his training at Harvard, Boston University (MPH), and Yale University. Board-certified in Internal Medicine and Emergency Medicine, he practiced Emergency Medicine before relocating to Texas in 2011. After serving as Medical Director of the Emergency Department at Knapp Medical Center, he moved to Austin and transitioned into Addiction Medicine, earning board certification in the field. His work naturally evolved toward holistic, root-cause-focused care and Functional Medicine. Outside of medicine, he enjoys exploring Austin’s outdoors with his wife and traveling.
Dr. Harbir Singh, MD, MBA, FACEP
Dr. Harbir Singh is a board-certified emergency physician with a background in systems leadership and healthcare innovation. He earned his medical degree from Penn State College of Medicine and an MBA from the University of Tennessee. Driven by a passion for personalized and preventative care, he transitioned toward Functional Medicine to address root causes rather than symptoms. Now based in Austin, he focuses on expanding access to high-quality, physician-led care through innovative healthcare models. His mission is to make thoughtful, patient-centered medicine more accessible and effective.
Lanh "Kim" Truong, APRN, FNP-C
Kim believes that true wellness is about more than just the absence of symptoms—it's about thriving. With over 15 years of medical experience, including serving as a U.S. Army Sergeant specializing in preventative medicine, she brings a uniquely disciplined and rock-solid clinical foundation to our team. A proud Texas State Bobcat, Kim earned her Master of Science in Nursing from the St. David’s School of Nursing. Her journey from the fast-paced world of acute care to functional medicine was driven by a desire to provide the deep, transformative care her patients truly deserve.
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If you’re looking for a more comprehensive, personalized approach to your health, we’re here to help.

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