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Background: In order for precision health to address health disparities, engagement of diverse racial/ethnic minority communi­ties and the physicians that serve them is critical.Methods: A community-based participatory research approach with mixed methods was employed to gain a deeper understanding of precision health research and practice among American Indian, African American, Latino, Chinese, and Vietnamese groups and physicians that serve these communi­ties. A survey assessed demographics and opinions of precision health, genetic testing, and precision health research. Focus groups (n=12) with each racial/ethnic minority group and physicians further explored at­titudes about these topics.Results: One hundred community mem­bers (American Indian [n=17], African American [n=13], Chinese [n=17], Latino [n=27], and Vietnamese [n=26]) and 14 physicians completed the survey and participated in the focus groups. Familiarity with precision health was low among com­munity members and high among physi­cians. Most groups were enthusiastic about the approach, especially if it considered influences on health in addition to genes (eg, environmental, behavioral, social fac­tors). Significant concerns were expressed by African American and American Indian participants about precision health practice and research based on past abuses in bio­medical research. In addition, physician and community members shared concerns such as security and confidentiality of genetic information, cost and affordability of genetic tests and precision medicine, discrimina­tion and disparities, distrust of medical and research and pharmaceutical institutions, language barriers, and physician's specialty.Conclusions: Engagement of racial/ethnic minority communities and the providers who serve them is important for advancing a precision health approach to addressing health disparities.Ethn Dis. 2020;30(Suppl 1):137-148; doi:10.18865/ed.30.S1.137