I am a statistician who conducts research in statistical methods for health services research and clinical epidemiological research. I conduct research in the following six areas: (1) propensity score methods for estimating the effects of treatments and interventions using observational research; (2) survival analysis; (3) survival analysis in the presence of competing risks; (4) methods for the analysis of hierarchical or multilevel data; (5) statistical methods for provider profiling; (6) statistical and machine learning methods for predicting patient outcomes. I also have extensive experience in the analysis of large administrative healthcare databases.