Background and Objectives: Demand for geriatric care is increasing due to aging population. Trends in maintaining certiufb01cation in geriatrics are unreported. Our objective was to describe the historic trend of family physicians who certiufb01ed in geriatric medicine (FPs-GM) since 1988 and to assess differences in practice patterns between FPs-GM and family physicians (FPs). Methods: We performed a retrospective descriptive study using administrative data collected by the American Board of Family Medicine (ABFM). The study population was family physicians registering to continue their ABFM certiufb01cation from 2017 to 2019. Medicare public use billing data was linked to ABFM administrative data on certiufb01cation history. We used univariate analysis for descriptive analysis and logistic regression to identify contributors of recertiufb01cation in geriatrics. Results: We identiufb01ed a total of 3,207 FPs-GM between 1988 and 2019. More than half maintained GM certiufb01cation since 2009 (57%), with male gender, White race, and urban practice associated with maintaining GM certiufb01cation; 61% of their patients were older adults. FPs-GM were more likely to be in an academic practice setting with nearly half (53%) also practicing in hospitals or nursing homes. In the adjusted regression model, younger FPs or FPs who treat more older patients were signiufb01cantly more likely to be recertiufb01ed in geriatrics whereas other demographics and practice characteristics were not signiufb01cant. Conclusions: Most FPs who recently earned GM certiufb01cation tended to retain certiufb01cation since the required accredited fellowship started in 1995.