Data science is transforming healthcare by leveraging vast amounts of data to improve patient outcomes, streamline operations, and reduce costs. It enables predictive analytics for disease prevention and readmission rates, enhances diagnostic accuracy through AI-powered medical imaging and pathology, and supports personalized medicine by analyzing genomic data and optimizing treatments. Data science also improves operational efficiency by optimizing resource allocation and supply chain management, while wearable devices and telemedicine facilitate remote patient monitoring. Additionally, it accelerates drug discovery, detects healthcare fraud, and aids public health efforts by tracking disease outbreaks. Natural language processing (NLP) extracts insights from electronic health records (EHRs) and powers patient-facing chatbots. However, ethical considerations, such as data privacy and security, remain critical to ensure patient trust and compliance with regulations.