The 2025 Big "G" Geriatrician: Defining Job Roles to Guide Fellowship Training.

Changes in health care that are already in progress, including value- and population-based care, use of new technologies for care, big data and machine learning, and the patient as consumer and decision maker, will determine the job description for geriatricians practicing in 2025. Informed by these future certainties, 115 geriatrics educators attending the 2016 Donald W. Reynolds Foundation Annual meeting identified five 2025 geriatrician job roles: complexivist; consultant; health system leader and innovator; functional preventionist; and educator for big "G" and little "g" providers. By identifying these job roles, geriatrics fellowship training can be preemptively redesigned.