Data science has significantly changed the healthcare industry by enabling more informed decision making, better diagnostics, and predictive analysis. It has helped structure large amounts of medical data and allows doctors to make more educated decisions about patient health. Data science provides the foundation for drug development in the pharmaceutical sector by discovering statistical relationships between patient attributes and compounds. When applied to medical imaging, deep learning can detect small abnormalities that help doctors develop effective treatment plans. While data science holds great potential for improving healthcare, challenges remain around standardizing data and management practices.