Abstract Issue Globally, Specialist Outpatient Clinics (SOCs) face a growing burden due to rising chronic diseases. This strain on resources leads to long appointment wait times (LAWTs), delaying diagnoses and treatments. This is particularly of concern in countries with rapidly ageing populations such as Singapore. Description The Right-Site Care Program is a healthcare transformation initiative implemented by individual healthcare clusters within Singapore to improve access to timely SOC care by directing patients to the most appropriate care level (right-siting). This transitions stable chronic disease patients to primary care providers (PCPs) for ongoing management. A standardised approach utilises evidence-based guidelines for patient selection, followed by identification and transfer of suitable patients to PCPs. This multi-center program offers a real-world example of healthcare system optimisation for chronic disease management. Results A multi-source data analysis, including program reports and peer-reviewed studies from participating healthcare clusters, was conducted to evaluate program impact. The analysis focused on LAWTs, patient outcomes and implementation challenges. Right-siting yielded mixed results across various conditions. Right-sited patients had better survival rates, likely due to closer monitoring and management of chronic conditions with higher total outpatient attendance frequencies. (1) Improvements were particularly significant for diabetes mellitus patients who successfully transitioned to PCPs. (2) However, challenges such as patient scepticism about PCP competence and a preference for specialist care have been identified. (3) Lessons learned Right-siting care can improve patient outcomes for certain chronic diseases. The program’s impact varied across different chronic diseases, highlighting the need for tailored strategies. Educational interventions addressing patient concerns can facilitate smoother patient transitions and program success. Key messages • Right-siting care shows promise, with improved patient outcomes for conditions like diabetes mellitus. • Patient education is crucial to overcome patient scepticism and preference for specialists.