The Taconic IPA, a 2,500 physician independent practice association (IPA) located in Fishkill, New York (NY), is involved in an information technology project to improve the quality, safety and efficiency of healthcare in the region. Over the past three years, the organization has worked with area hospitals and laboratories to create a community wide electronic data exchange. Currently, the Taconic IPA is in the midst of implementing a full electronic health record in some practices and e-prescribing in other practices. The purpose is to study the impact of an electronic health record on safety and quality measures.