This study aims to provide a focused theoretical examination of the contribution of corporate governance to the upgrading and enhancement of accounting information systems (AIS) in private healthcare institutions. It conceptualizes corporate governance as a regulatory and oversight framework grounded in transparency, accountability, independence, fairness, and responsibility. Concurrently, it considers the accounting information system as a fundamental subsystem of the management information system, responsible for collecting, processing, and converting financial and non-financial data into actionable information for decision-making. The study also highlights the specific nature of healthcare institutions as multi-stakeholder environments with an intensified need for internal control and information quality. Furthermore, it addresses the evolution of the governance concept, the primary rationales for its emergence, its underlying theories, and its core principles. It subsequently examines the concept of accounting information systems, outlining their characteristics, objectives, operational stages, and associated risks. The study concludes by analyzing the theoretical relationship between governance and accounting information systems through the dimensions of transparency, information quality, oversight, assignment of responsibilities, decision support, and risk mitigation.