Аннотация:To qualify for new federal funds intended to promote the widespread adoption and use of electronic health records, U.S. physician practices must meet the government's "meaningful use" benchmarks. Our analysis indicates that among physicians who have electronic health records, between 75–85 percent are already using functions that meet some of the proposed criteria for demonstrating meaningful use. But gaps remain. We provide a new analysis of baseline use of specific electronic health record functions among primary care physicians and medical and surgical specialists. The analysis can help researchers and policy makers measure more accurately the success of ongoing efforts to expand effective use of health information technology.