Despite the increased use of nursing homes by minority residents, nursing home care remains highly segregated. Compared to whites, racial/ethnic minorities tend to be cared for in facilities with limited clinical and financial resources, low nurse staffing levels, and a relatively high number of care deficiency citations. We assessed the trends from 2006 to 2011 in those citations and in disparities across facilities with four different concentrations of racial/ethnic minority residents. We found that the number of health care-related deficiencies and the percentage of facilities with serious deficiencies decreased over time for all four facility groups. From 2006 to 2011 the average annual number of health care-related deficiencies declined from 7.4 to 6.8 for facilities with low minority concentrations (<5 percent) and from 10.6 to 9.4 for facilities with high minority concentrations (≥35 percent). In multivariable analyses, across-site disparities in health care-related deficiencies and in life-safety deficiencies narrowed over time. We also found that increasing the Medicaid payment rate might help improve both overall quality and disparities, but state case-mix payment approaches might worsen both. These results suggest the need to reevaluate quality improvement and cost containment efforts to better foster the quality and equity of nursing home care.