This study focuses on the critical issue of medication errors within a tertiary healthcare environment, acknowledging their significant impact on patient safety and healthcare quality. Medication errors are a major concern due to their potential to cause adverse patient outcomes. Aim: The primary aim is to assess the prevalence, types, and causes of medication errors in a tertiary healthcare setting, with a view to identifying strategies to mitigate these errors. Objective: The study aims to categorize medication errors using the NCCMERP risk index, taking into account their nature and severity. It seeks to identify the most prevalent types of errors, with an emphasis on all kinds of errors. The objective is also to comprehend the root causes of these errors in order to develop effective strategies for intervention. Methodology: Conducted over a six-month period, this retrospective analysis reviewed 5430 patient charts from various medical wards, employing the NCCMERP risk index for classifying medication errors' severity. Results: A total of 520 medication errors were identified, with prescribing errors being the most prevalent at 62.88%. The study highlights the need for focused interventions in prescribing and administering practices to reduce medication errors. Conclusion: The study concludes that there is a pressing need for targeted interventions in prescribing practices and enhanced communication and education among healthcare providers. These measures are crucial for reducing medication errors and improving patient safety in tertiary healthcare settings.