OBJECTIVES: The goal of this task force was to examine the 1992 definition of the intensivist, identify gaps, and initiate a path forward to define a concise and practical definition that could be applied globally. DESIGN: A modified Delphi technique was used to develop a revised definition and roles of the intensivist. We determined a priori that 75% or greater participant agreement for the definition and essential roles of the intensivist was required. SETTING: A task force consisting of physicians, a respiratory therapist, advanced practice providers, and a pharmacist that practice in critical/intensive care medicine, in various settings, was established with the goal of evaluating and revising the previous definition considering evolving healthcare. SUBJECTS: The task force participated in online questionnaires related to the definition and roles of the intensivist. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: The task force agreed on the following definition of an intensivist: "A physician who has successfully completed an accredited program or equivalent critical care/intensive care medicine training and maintains advanced certification (if available)
and shows dedication to the area of critical/intensive care medicine in the way of professional work." Additionally, the task force determined a list of essential roles of the intensivist categorized into Direct Clinical Care, Unit Management/Unit Involvement, Responsibility to the Community, and Administration and Leadership. CONCLUSIONS: The revised definition of the intensivist seeks to integrate the intensivist in the current realm of team-based healthcare. The intensivist is a physician who provides care to critically ill patients in collaboration with an interprofessional team. Establishment of a single, revised definition is intended to render clarity of an intensivist's role and responsibilities for patients, families, and the interprofessional team.