Dr. David Barzilai, MD, PhD, MBA, MS, DipABLM, is a globally recognized longevity medicine physician, and consultant specializing in evidence-based healthspan optimization and best practices. As the founder and CEO of Barzilai Longevity Consulting (Healthspan Coaching LLC), he helps individuals and organizations implement cutting-edge longevity science to enhance well-being, performance, and vitality.

An inaugural faculty member and Trustee at the Geneva College of Longevity Science, Dr. Barzilai leverages his PhD in Health Services Research to drive precision medicine innovations. He integrates the latest scientific breakthroughs with personalized strategies to extend healthspan and advance the science of aging. A Diplomate of the American Board of Lifestyle Medicine, he applies a comprehensive data-driven approach encompassing nutrition, physical activity, sleep, stress management, and emerging therapeutics.

Through Barzilai Longevity Consulting (agingdoc.com), he collaborates with clients to design tailored longevity plans, translating complex research into actionable strategies. Known as @agingdoc1 on X (formerly Twitter), he engages a global audience of academics, scientists, and health leaders, sharing insights and fostering discussions on aging and longevity medicine.

Beyond public engagement, Dr. Barzilai advises individuals, corporations, and healthcare organizations on longevity-focused strategies, workforce well-being, and executive health optimization. As a sought-after speaker, he delivers keynotes at major scientific and clinical conferences worldwide. His expertise, thought leadership, and commitment to evidence-based innovation continue to shape the future of longevity medicine.