David Barzilai is the founder of Healthspan Coaching LLC, a firm specialising in both health and life coaching and consulting. With an extensive background in health and longevity, David brings a wealth of knowledge and expertise to his practice.

David holds dual BA degrees in Cell and Developmental Biology, and Health and Society from the University of Rochester, where he graduated Phi Beta Kappa and Summa Cum Laude. He earned his MD-PhD from Case Western Reserve University, with his PhD focused on health services research and training in evidence-based medicine.

As a licensed dermatologist and Diplomat of the American Board of Lifestyle Medicine (DipABLM), David has a broad range of interests and a passion for healthy longevity and mind-body wellness. His diverse experiences include certifications in nutrition from the Institute for Integrative Nutrition (IIN) as an Integrative Health Coach, nutrition from IFNA, and positive psychology from Kripalu. Additionally, he holds an MBA from UMass Amherst and an MS in Psychology.

Known as “Agingdoc” on the social platform X, David has amassed over 30,000 followers. He actively engages with a community interested in geroscience, longevity medicine, and extended healthspans, sharing the latest research in aging biology, healthy aging, lifestyle medicine, and longevity practices.

Dr. Barzilai also hosts the Agingdoc Podcast on YouTube, featuring in-depth discussions with prominent figures in aging biology and the business of longevity. He has authored educational materials on evidence-based medicine and holds multiple certifications in nutrition, health coaching, and longevity medicine, demonstrating his commitment to applying his knowledge in practical settings.