Arterial hypertension and type 2 diabetes are significant contributors to global non-communicable disease-related mortality. Integrated care, centred on person-centred principles, aims to enhance healthcare quality and access, especially for vulnerable populations. This study investigates integrated care for these diseases in Slovenia, providing a comprehensive analysis of facilitators and barriers influencing scalability. Qualitative methods, including focus group discussions and semi-structured interviews, were employed in line with the grounded theory approach. Participants represented various levels (micro, meso and macro), ensuring diverse perspectives. Data were collected from May 2019 to April 2020, until reaching saturation. Transcripts were analysed thematically using NVivo software. Nine categories emerged: Governance, Health financing, Organisation of healthcare, Health workforce, Patients, Community links, Collaboration/Communication, Pharmaceuticals, and Health information systems. Some of identified barriers were political inertia and underutilisation of research findings in practice; outdated health financing system; accessibility challenges, especially for vulnerable populations; healthcare workforce knowledge and burnout; patients' complex role in accepting and managing their conditions; collaboration within healthcare teams; and fragmentation of health information systems. Peer support and telemedicine were the only two potential solutions identified. This study offers a comprehensive evaluation of integrated care for hypertension and type 2 diabetes in Slovenia, featuring insights into facilitators and barriers. These findings have implications for policy and practice. Monitoring integrated care progress, refining strategies, and enhancing care quality for patients with these two diseases should be priorities in Slovenia.