The purpose of this study was to explore the level of integration of health promotion and disease prevention services with the curative care provided at hospitals and health centres in Addis Ababa, and to propose recommendations that could improve such an integrated health service. A quantitative approach, using an exploratory and descriptive design was applied at 22 public health facilities in Addis Ababa followed by the Delphi technique to reach consensus on ways to improve the integration of health promotion, preventive and curative care. An integrated health service (IHS) framework was used as the conceptual framework upon which the study was based. Multistage sampling involving stratified simple random sampling was applied to select hospitals and health centres while a systematic sampling technique was used to sample patients from the outpatient and inpatient medical departments. Data was collected by means of two questionnaires from patients and health service managers, respectively, following which two Delphi rounds with experts resulted in agreement on a contextually accepted integrated framework. The findings revealed that promotive and preventive services for chronic diseases were not optimally integrated in the routine health care services of the health facilities. Most health facilities lacked skilled health professionals, adequate medication and equipment to provide a comprehensive integrated service. The study emphasized the need for health service providers to undergo a paradigm shift and additional training in order to provide a comprehensive, patient-centred, integrated health service instead of only treating patients’ complaints. To assist this approach, the study affirmed the Integrated Health Service (IHS) framework as a tool which comprehensively demonstrates the cause, effect and progression of chronic diseases and the appropriate interventions which health professionals can apply in managing diseases or their risk factors. Recommendations for effective, integrated promotive and preventive health care, included the development of guidelines, protocols and policy documents for cultivating a healthy lifestyle, adopting effective disease prevention approaches, re-designing medical school curriculums, and staffing health facilities with trained and specialized staff, capacitating health facilities with the necessary equipment, medication and supplies that would enable the provision of an integrated health care service. / Health Studies / D. Litt. et Phil. (Health Studies)