Background Although evidence suggests electronic health records (EHRs) can improve quality and efficiency, provider adoption rates in the US ambulatory setting are relatively low. Prior studies have identified factors correlated with EHR use, but less is known about characteristics of physicians on the verge of adoption. Objective To compare characteristics of physicians who are imminent adopters of EHRs with EHR users and non-users. Design and participants A survey was mailed (June -November 2005) to a stratified random sample of all medical practices in Massachusetts.