This study examined racial and ethnic differences in healthcare use, delayed care, and management of care of older adults with a self-reported diagnosis of diabetes mellitus. Drawing on the 2009 California Health Interview Survey (CHIS), the sample included 3,003 adults (representative of N = 998,795) aged 60 and older from five racial and ethnic groups: non-Hispanic white (n = 2,153), African American (n = 213), Hispanic (n = 336), Asian (n = 306), and American Indian and Alaska Native (AI/AN) (n = 59). All self-reported a diagnosis of diabetes mellitus. Descriptive statistics and logistic regression analyses were conducted using weighted data. Results from adjusted logistic regressions indicated significant racial and ethnic differences between non-Hispanic white elderly and the other groups examined. Specifically, African Americans were significantly less likely than whites to see a doctor and to have a usual source of care, and were more likely to visit the emergency department (ED) for diabetes mellitus and to have their feet examined by a provider. Hispanics were significantly less likely to take medicine to lower cholesterol but were more likely to test their blood glucose regularly (following ADA guidelines). Asians were significantly less likely than whites to test their blood glucose regularly or have a foot examination. AI/ANs were significantly less likely than whites to see a doctor, visit an ED, and take medication to reduce heart attack risk but were more likely to use insulin, oral diabetic medication, or both. The findings suggest the need for racial- and ethnic-specific interventions for managing diabetes mellitus to help reduce existing racial and ethnic disparities among elderly adults.