Jeffrey Sparks, MD, MMSc, is a rheumatologist and population-scientist with an overall focus on using patient-oriented and epidemiologic research studies to evaluate the etiology, outcomes and public health burden of rheumatic diseases, such as rheumatoid arthritis (RA). In particular, he performs studies to evaluate genetic, environmental, serologic and familial risk factors for RA, clinical trials for RA prevention and outcomes research focusing on the respiratory burden of RA.