Adults with intellectual and other developmental disabilities (IDD) are now living to late life. Whether geriatricians are being trained to provide care for this clinically complex subpopulation of elders has not been examined. Two thirds of all geriatric fellowship directors in the United States responded to a Web-based survey of curriculum and training in this area. Forty-four percent rated training in this area as "important" or "very important," but only 26% of directors rated their graduates as moderately or highly competent in caring for elders with IDD. We report our survey findings and implications for future curricular development. (Contains 3 tables.)