Patients at a large medical clinic provided data permitting an analysis of the relationships of perceived communication behaviors (nonverbal immediacy, assertiveness, and responsiveness) and source credibility (competence and caring) with perceptions of the confidentiality of their medical records. Perceptions of physicians, nurses, and support staff were employed. The results indicate that patients' perceptions of the communication behaviors and credibility of physicians, nurses, and support staff are meaningfully related to patients' perceptions of confidentiality. The problems of actual confidentiality and perceived confidentiality are discussed in relation to the role of communication as part of the problem and a potential part of the solution.