Ryan Chiang, IFMCP, L.Ac., is a TCM, Functional Medicine physician who bridges Eastern medical wisdom with modern Western innovation — uniting tradition, technology, and precision healing.

Across his career, Dr. Ryan Chiang has practiced in the domains of internal medicine, dermatology, and integrative chronic care, with a focus on uncovering the root causes of complex conditions. His clinical expertise includes the treatment of eczema, diabetes, metabolic syndrome, and autoimmune disorders. He has also developed proficiency in advanced diagnostic methods, including circulating tumor cell (CTC) analysis, functional laboratory testing for hormones and gut microbiome health, and the integration of wearable technologies for real-time monitoring of sleep, stress, cardiometabolic markers as well as blood glucose monitoring.

His clinical philosophy was shaped early by his father, Dr. Chin-Hui Chiang, a leading physician in classical Chinese medicine with more than five decades of experience. Together, they built a cross-generational medical ecosystem—rooted in a flagship clinic in Taipei and expanded to Tokyo—where traditional Chinese medicine is not only practiced but continuously evolved.

Today, their work extends beyond clinical care. The family cultivates its own medicinal botanicals, operates a dedicated herbal supplement and functional food manufacturing facility, and runs clinical sites in both Taipei and Tokyo. By overseeing everything from cultivation and raw herb processing to formulation and patient application, they maintain a fully integrated botanical-to-clinic pipeline. This model transforms the clinic into a living laboratory—where time-honored herbal wisdom is refined through scientific rigor and adapted for the complex chronic conditions of modern life.

Dr. Ryan Chiang is the founder of Rootrum and Root HealthSpan — next-generation wellness ventures built on the Chiang family’s medical legacy. Together, they unite botanical intelligence with the precision of functional medicine: Rootrum develops science-informed botanical formulations, while Root HealthSpan applies longevity science, diagnostics, and data-driven insights to extend healthspan and preserve vitality. Grounded in the belief that traditional wisdom and modern longevity science can coexist, both brands share a single mission — to deliver targeted, evidence-aligned solutions that help people not just live longer, but live better.