In this study of 109,745 patients and 1,750 physicians, it was found that Hispanics, Asians, and especially blacks are more likely to choose a same-race physician than are Caucasians if patients get to choose. (The study controlled for availability). This demonstrates that non-whites are more racially nepotistic than whites.
Think about it. Caucasians are basically colorblind when choosing a doctor. This contradicts in dramatic fashion the image of whites as bigots who prefer their race, especially on important questions like health. Archie Bunker sure as hell would find a white doctor if humanly possible. Truth is, most of the Archie Bunkers nowadays are black, brown, or yellow.