A New Category in Cancer Care, Built by the People Who Saw It Fail

Moving Cancer Upstream: Dr. Jose Barreau on Prevention, Prime Time, and the Fight to Detect Cancer Earlier Dr. Jose Barreau spent decades on the wrong side of a timeline every oncologist knows too well, treating cancer after it was found, often at a stage when the window for real intervention had already closed. That experience became the founding premise behind PreOncology, the company he built to move cancer care upstream from treatment to prevention. Barreau's work recently reached a much bigger audience. He's featured in The Chase: Inside the Race to Cure Cancer, a documentary now streaming on Amazon Prime Video that follows real patient experiences and the healthcare teams navigating one of life's hardest journeys. In this conversation, we talk about what it was like being part of that project, why the film's message about early detection lines up so closely with PreOncology's mission, and what he wants viewers to take away from it. We also get into the founding story behind PreOncology itself: why conventional screening was never built for the individual, why the technology to detect cancer earlier already exists but has never been properly integrated, and how an oncologist-led model is trying to close that gap. Barreau also shares lessons from his earlier work founding Doc Halo and Halo Health, healthcare communication platforms used by over 300,000 physicians nationwide. Dr. Barreau will be speaking live at the 2026 Concierge Medicine Forum this October in Atlanta, GA, where he'll go deeper into what personalized cancer surveillance actually looks like in practice. If this conversation resonates, that session is one worth planning your schedule around. Learn more about Dr. Barreau and PreOncology: https://preoncology.com/our-story/ Watch The Chase: Inside the Race to Cure Cancer on Amazon Prime Video. This episode is educational and informational. Nothing discussed should be considered medical advice.