Tabriz University of Medical Sciences Depiction of Health 2008-9058 16 3 2025 09 20 Drivers of Effective Implementation of the Family Physician and Referral System Policy 244 256 10.34172/doh.2025.19 EN Elahe Mirinejad https://orcid.org/0009-0001-4875-6339 Nour Mohammad Yaghoubi https://orcid.org/0000-0002-8630-3306 Aleme Keikha https://orcid.org/0000-0003-3188-3670 Journal Article 10.34172/doh.2025.19 2025 05 15 2025 09 14 Background. One of the significant challenges facing the healthcare system in Iran is enhancing the efficiency of medical services and ensuring equity in access to care. The Family Physician Program and the Referral System are pivotal health policies within this context. This study aims to identify the key factors that drive the successful implementation of the Family Physician Program and the Referral System in Sistan and Baluchestan Province. Methods. This applied study employed an exploratory mixed-methods design. The qualitative phase included 15 participants, such as university health administrators, family physicians, health policy experts, and faculty members, all with at least five years of managerial experience. In the quantitative phase, the population comprised all individuals who used services through the Family Physician Program and the Referral System. A sample of 384 respondents was determined using Morgan’s table. Data collection involved field and documentary methods. Semi-structured interviews were applied in the qualitative phase, while questionnaires were employed in the quantitative phase. Data were analyzed using the Delphi technique for the qualitative section and descriptive and inferential statistics for the quantitative section. The study was carried out in 2024. Results. The results revealed that several driving forces- including the training and empowerment of family physicians and healthcare teams, public awareness and cultural sensitization, the provision of sustainable financial resources, and the establishment of adequate technical and informational infrastructure- are critical to the effective implementation of the Family Physician Program and the Referral System. Conclusion. The proposed model demonstrates strong reliability in explaining the interrelationships among variables and highlights the adequacy of policy implementation quality in the Family Physician Program and the Referral System.