JOHN CHANG, M.D.

Dr. John Chang practices functional medicine in Pearl River, offering a systems-based approach to diagnosis and treatment that looks beyond symptoms to underlying causes. He works with patients managing chronic conditions, metabolic dysfunction, and those seeking preventive wellness optimization through detailed assessment and personalized protocols. His practice emphasizes lab work, nutritional medicine, and lifestyle modification as primary therapeutic tools. Most visits are cash-based, though he can provide documentation for potential insurance reimbursement depending on your plan.