The Client Care Monitoring Unit of Oregon's Senior and Disabled Services Division developed and conducted a study with survey-generated information to describe the prevalence of pain and the effectiveness of pain interventions for residents of Oregon nursing home facilities. Forty-four percent of sampled residents who were identified as having pain management needs were found to have problematic treatment regimens. Reports of surveyors' experiences during information collection and review of the Medicare/Medicaid recertification reports of the sampled facilities revealed that lack of assessment, and reevaluation of the effectiveness of treatment for pain were the chief contributing factors that led to these findings.