The adoption of Agentic Artificial Intelligence (AI) is revolutionizing healthcare by facilitating personalized medicine and customized treatment plans. In contrast to conventional AI, Agentic AI functions independently, utilizing extensive patient data to continuously learn and adapt, thereby providing highly accurate care solutions. This chapter goes deep into Agentic AI, the basics as well as its application toward revolutionizing health care. We learn how this technology is used on the premises of personalized diagnosis, treatment of chronic conditions, and monitoring patient’s lives. Concentrating on concrete applications involving the identification of Parkinson’s disease and finding new drugs, this chapter will elucidate how Agentic AI is changing the healthcare industry-better, more effectively, and finally, to the benefit of the patient. Moving more specifically into sensitive topics involving the protection of data and, algorithmic biases, among ethics-based problems and ensuring proper governance rules apply in these Simultaneously, the chapter shares how Agentic AI is expanding predictive as well as preventive care on the journey toward AI-superstructure expansions. The future trajectory is presented as areas with potential for innovation through embedding AI into IoT and further discoveries in genomics. Agentic AI brings together technology and medicine in an approach that promises to transform health care while making life quality much better all over the world.