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The integration of generative artificial intelligence (AI) into clinical workflows represents a transformative shift in healthcare systems and analytics, promising enhanced efficiency in documentation tasks while introducing novel challenges in reliability and governance. This narrative review synthesizes recent literature on the utility of generative AI models, such as large language models (LLMs), in automating clinical documentation, including patient notes, discharge summaries, and diagnostic reports, which traditionally consume significant clinician time. Studies highlight how these tools can streamline data ingestion from electronic health records (EHRs), generating coherent narratives that align with clinical standards, thereby reducing administrative burdens and allowing more focus on patient care. For instance, generative AI has demonstrated proficiency in summarizing complex medical dialogues and classifying clinical notes, often outperforming traditional methods in speed and accuracy, as evidenced by evaluations in German healthcare settings and emergency departments. However, the utility is tempered by inherent failure modes, including hallucinations—where models produce factually incorrect information—and biases amplified from training data, which can propagate errors in clinical decision-making. Oversight mechanisms are critical to mitigate these risks, encompassing human-in-the-loop verification, regulatory frameworks like the EU AI Act, and ethical guidelines for deployment in high-stakes environments. From a systems-level perspective, generative AI enables closed-loop analytics in healthcare infrastructure, where data flows from ingestion to inference, informing interventions and feeding back for model recalibration. This review examines how LLMs facilitate intelligent clinical decision support, such as in patient care document verification using EHRs and prompt engineering for medical education. Yet, failures such as catastrophic errors in multimodal AI applications underscore the need for robust oversight, including transparency in model training and post-deployment monitoring. Comparative analyses reveal that while generative AI excels in low-risk documentation tasks, its application in critical sectors demands interdisciplinary expertise to address trust deficits and ensure equitable outcomes. The review integrates cross-study insights, proposing an original framework for AI-enabled healthcare loops that emphasizes governance at each stage to balance innovation with safety. Emerging perspectives indicate that generative AI’s role in healthcare analytics extends to predictive modeling and administrative functions, with consensus statements advocating for standardized evaluation frameworks to assess real-world viability. Challenges in failure modes, such as over-reliance on AI outputs without verification, highlight the imperative for oversight mechanisms that incorporate legal and ethical considerations, ensuring compliance with therapeutic approvals and preventing misuse in controlled substance contexts. Ultimately, this synthesis underscores the dual-edged nature of generative AI in clinical workflows: its documentation utility can revolutionize healthcare delivery, but only through vigilant oversight to avert failures that compromise patient safety. By structuring the discourse around data-model-deployment-governance continua, this review offers a novel interpretive lens for future implementations, urging stakeholders to prioritize human oversight in AI-augmented systems.