A disease registry can be a powerful tool to facilitate integration among providers and specialists.  The registry is a database of information about patients with specific types of diagnoses. It collects information that can be used for capturing, organizing, managing, and evaluating information for a population of patients. Disease registries are either clinical-based or population-based. Registries may be used to track outcome measures as a means of evaluating integration programs.

Several of the early integration models, (ex.  IMPACT and DIAMOND), use a registry for systematic tracking, formal stepped-care protocols and relapse prevention. More information on registries for integration models may be found in the AHRQ EPC Report, Integration of Mental Health/Substance Abuse and Primary Care.