This study aimed to identify nursing interventions provided within one centre of the Community Rehabilitation Network (CRN) in Hong Kong and to evaluate the contribution of nursing interventions to patient care within a specific disease category. An embedded case study design was adopted. A total population of two nurses working in one centre of the CRN provided the nurse sample for non-participant observation, daily journals and semi-structured interviews. A total population of 68 patients with cardiac diseases provided the patient sample for structured telephone interviews. From these 68 patients, a convenience sample of five patients and their main carer provided the sample for semi-structured interviews. The results highlight the consistency of findings obtained from multiple methods of data collection, the type of contributions, complexity of classifying nursing contributions into specific domains of nursing practice and the perceptions of nurses, patients and carers of these contributions. Implications of the findings for the preparation of nurses for interprofessional community-based practice, the management of interprofessional teams and evaluation of nursing contributions within an interprofessional team are considered.