Rapid and accurate prehospital care—often referred to as the “golden hour”—is a critical determinant of patient survival and morbidity [1,2]. Timely medical direction during on-scene assessment and transport substantially influences outcomes in time-sensitive emergencies, including major trauma, out-of-hospital cardiac arrest, ST-elevation myocardial infarction, and acute stroke [2-5]. To address this need, many high-income countries (e.g., the United States, Japan, and Canada) have institutionalized emergency medical services (EMS) medical director systems that provide continuous supervision, evaluation, and quality improvement of paramedic practice [6,7].

In Korea, the EMS medical director system emerged from policy efforts to address limitations in prehospital care. Although the 1995 Emergency Medical Service Act introduced licensed emergency medical technicians (EMTs), invasive procedures remained legally restricted to physicians [8,9]. Recurrent delays and loss of the golden hour underscored the need for a formal medical direction framework [10], and a legal foundation was gradually established during the 2000s [11-13]. Under current law, EMTs may perform procedures such as airway management, defibrillation, intravenous access, and selected medication administration, but only under physician supervision (Table 1) [14,15].

The aims of the present review are to present quantitative and qualitative data on the EMS medical director workforce and the operation of direct and indirect medical direction (DMD and IMD, respectively) and to examine the interaction between training programs and legislation, thereby providing evidence to inform improvements in the quality of prehospital emergency care.

This narrative descriptive review synthesized publicly available Korean EMS materials, including selected unpublished data. Data sources included: (1) the National Emergency Medical Center Emergency Medical Statistics Yearbook (2023); (2) the National Fire Agency 119 Emergency Service Statistical Yearbooks (2020–2024) and related press releases; (3) legal and administrative documents from the Korean Law Information Center (including the Emergency Medical Service Act and its Enforcement Rule, the Act on 119 Rescue and EMS and its Enforcement Decree, and the Regulation on the Operation of EMS Medical Directors); and (4) a peer-reviewed study on private ambulance services. We extracted the number of appointed or assigned EMS medical directors by domain and reference date and summarized training-program outputs. No system-performance metrics were analyzed. Because the data were derived from different administrative sources and reference dates, and because some individuals may hold multiple posts, we report domain-specific appointments rather than a person-level national total or participation proportion.

The Korean EMS medical director system is structured within a three-tier legal hierarchy consisting of acts, enforcement decrees or rules, and administrative regulations. The Emergency Medical Service Act (Article 52) requires ambulance operators to appoint a physician responsible for consultation, triage, transport guidance, and advanced procedures [11]. Its Enforcement Rule (Article 42) further specifies responsibilities, including on-scene medical direction, crew education and evaluation, and the provision of advanced care during transport [13]. In Korea, the public EMS system (119) is operated by the National Fire Agency. The Act on 119 Rescue and EMS (Article 25-2) and its Enforcement Decree (Article 27-4) establish a distinct category of “119 EMS medical director,” requiring at least one such physician at each provincial fire headquarters. These provisions define responsibilities that include direct and indirect medical direction, development of field treatment protocols, and quality-management reporting [16,17]. The administrative Regulation on the Operation of EMS Medical Directors further categorizes roles into DMD, IMD, quality management, and research advising, and gives priority to graduates of the EMS Medical Director Training Course or board-certified emergency physicians [12].

Most EMS medical directors are physicians who provide medical direction to 119 EMS crews in the prehospital setting and oversee overall system quality. Functionally, medical direction is categorized into DMD and IMD. DMD is delivered in real time—either from a 119 control center or by an on-scene physician—and encompasses high-level decisions such as intravenous access, airway management, medication administration, obstetric care, termination of cardiopulmonary resuscitation, destination selection, and refusal of transport. IMD, managed primarily at the provincial fire-service level, includes crew education, revision and development of field treatment protocols, and retrospective run review for quality assurance.

Accordingly, the term “EMS medical director” (or a physician performing that role) collectively encompasses fire-station medical directors, 119 control-center physicians providing DMD, directors appointed by private transport services, graduates of the official EMS Medical Director Training Course, and physicians affiliated with Disaster Medical Assistance Teams (DMATs), the National Emergency Medical Center, or Regional EMS Support Centers. To accurately assess the current status and activities of Korea’s EMS medical director system, these distinct categories must be identified and analyzed separately.

The EMS Medical Director Training Course, launched in 2007, consists of pre-course study, a symposium, workshops, a field practicum, and a written examination. The Ministry of Health and Welfare oversees the program, the National Emergency Medical Center manages planning and funding, and the Korean Association of EMS Physicians (KAEMSP) delivers the curriculum. By December 2023, 922 physicians had completed the course (Fig. 1A) [18].

Eligibility, which was initially restricted to board-certified emergency physicians, has been expanded to include third-year or higher emergency medicine residents. To enhance field relevance, the symposium component was reduced in favor of case-based workshops, and pre-course learning was refocused on practical skills. In 2013, visits to 119 control centers and ambulance ride-alongs were added to the curriculum. Beyond credentialing, the program serves as a gateway for identifying and networking physicians committed to EMS medical direction.

Since 2017, KAEMSP has operated a 1-year EMS fellowship program. Designed to develop competencies in systems management, clinical care, medical direction, quality assurance, education, public health, research, and disaster management, the fellowship includes 77 hours of lectures, 40 hours of practicum training, and 36 hours of blended learning (five in-person sessions and six online modules). Approximately 10 fellows graduate each year; by the end of 2023, cumulative graduates numbered 98 (Fig. 1B) (KAEMSP, unpublished data, 2024).

The current system is characterized by dispersed statutory provisions, variable staffing patterns, and the absence of a structured medical-direction framework in the private sector. Key priorities for improvement include harmonizing legal responsibilities across relevant acts and regulations, expanding the pool of EMS medical directors by encouraging broader participation beyond graduates of the EMS Medical Director Training Course, and enhancing the quality of medical direction through continuous education and systematic oversight. Periodic recertification requirements should also be considered for both initial appointment and reappointment, along with increasing the proportion of board-certified emergency physicians and introducing mandatory education and quality-assessment reporting requirements for private transport companies. Another priority is to improve how the EMS medical director workforce is defined and tracked. Currently, graduation records from the national EMS Medical Director Training Course are not linked to administrative appointment rosters, and some physicians hold multiple positions. As a result, neither the total number of unique EMS medical directors nor the proportion of trained physicians actively working in EMS-related roles can be calculated reliably. Establishing a national, person-level registry that links training completion with EMS medical director appointments in both the fire-service and private sectors would enable accurate headcounts, monitoring of participation rates, and more rational workforce planning. Future research should: (1) quantify the impact of EMS medical directors’ activities on patient outcomes; (2) evaluate the effectiveness of training and oversight programs; (3) analyze cost-effectiveness; (4) compare regional and institutional models to identify best practices; and (5) examine the applicability of international systems within the Korean context.

This review delineates the legal foundation, training pathways, and current deployment of EMS medical directors in Korea. Since 2007, the EMS Medical Director Training Course has progressively expanded the physician workforce that provides both direct and indirect medical direction in prehospital care. In addition to clinical oversight, many EMS medical directors contribute to protocol development, crew education, and system-level quality-improvement initiatives. Although ongoing curriculum updates and the EMS fellowship continue to produce qualified directors, further progress—including legal harmonization, periodic recertification, and structured quality programs that extend to the private sector—will be necessary to meet evolving emergency care demands. These findings provide a foundation for future research and policy refinement of the Korean EMS medical director system.