Doctor AI: Reimagining Health is a groundbreaking manifesto and roadmap for transforming the American healthcare system through the combined power of cultural insight, systemic redesign, and ethically governed artificial intelligence. Written by physician and healthcare innovator Dr. Robin Blackstone, this book offers a bold vision for a future in which healthcare becomes a right secured by a 28th Amendment to the U.S. Constitution-no longer a privilege dictated by profit. At its core, the book introduces Health 4.0, a new model of care that integrates AI-powered personalization, upstream investment in health, and culturally attuned service delivery across six American Health Regions. It draws a sharp contrast between today's fragmented, rescue-oriented system and a future where prevention, proactivity, and equity are foundational. By illuminating both the human and systemic cost of the current model-from rural maternal mortality to mental health breakdowns and delayed cancer diagnoses-Dr. Blackstone makes an urgent, emotional case for change. The book is part story, part strategy. It follows real and fictional characters-patients, clinicians, policymakers-whose lives are transformed by access to the USA Health system and Doctor AI, a personalized care engine that supports, but never replaces, human judgment. Alongside vivid stories, readers find carefully structured frameworks: a legislative blueprint (the USA Health Act), governance models to prevent misuse of AI and health data, and detailed financial pathways to fund the transition without raising taxes. Doctor AI is not techno-utopian. It is grounded in ethics, trust, and autonomy. It shows how conservatives and progressives alike can rally behind a system that protects life, strengthens national prosperity, and restores dignity to care. The book speaks directly to clinicians, policymakers, entrepreneurs, and everyday Americans ready to move beyond the status quo. Ultimately, Doctor AI is a call to action: a declaration that it's time to stitch together the fragmented fabric of American health, and reimagine a system that truly works-for everyone.