We study the effect of physician workforce diversity on the demand for preventive care among African American men. In an experi- ment in Oakland, California, we randomize black men to black or non-black male medical doctors. We use a two-stage design, measur- ing decisions before (pre-consultation) and after (post-consultation) meeting their assigned doctor. Subjects select a similar number of preventives in the pre-consultation stage, but are much more likely to select every preventive service, particularly invasive services, once meeting with a racially concordant doctor. Our findings suggest black doctors could reduce the black-white male gap in cardiovascu- lar mortality by 19 percent.