With an aim to understand transformation around big data analytics, this paper first investigates the literature to explore elements of change around big data. The research comprises a qualitative enquiry in the New Zealand healthcare context to understand how professionals across the sector view this transformation. Healthcare sectors are increasingly adopting big data technologies to improve healthcare delivery and management. However, for sectors like healthcare, big data brings significant changes in terms of technology architecture, infrastructure, skills, and organisational structure changes. Security measures and policy changes are also apparent. Using a deductive approach to data analysis, it confirms the important elements identified in the literature around big data transformation and highlights the relationships between these elements of change. The paper uses Sociotechnical Systems Theory as the underlying theoretical foundation for this study. The findings of this research contribute to policy and practice in healthcare.