PurposeThe quality of life (QoL) of patients with type 2 diabetes mellitus (T2DM) is a measure of the successful outcomes of therapy. The program of management of chronic diseases “Program Pengelolaan Penyakit Kronis” (Prolanis) among patients with hypertension and T2DM is a new strategy of the Badan Penyelenggara Jaminan Sosial (BPJS), which is the Indonesian national health insurance system. Here, we analyzed the impact of pharmacist counseling interventions on health-related QoL (HRQoL) in Prolanis T2DM patients.MethodsThis cluster randomized controlled trial was designed to include two groups [control (n = 111) and intervention (n = 109) groups], and pre- and post-test procedures. The participants were Prolanis T2DM patients who attended four primary health-care centers (Puskesmas) in Makassar City, South Sulawesi, Indonesia from August 2017 to August 2018. The intervention group received systematic counseling for 6 months. The data were collected using the Bahasa Indonesia version of the European Quality of Life 5 Dimensions 5 Levels (EQ-5D-5 L) questionnaire and were analyzed using EQ-5D preference weight for each health state with the Indonesian EQ-5D-5 L value Set. Furthermore, the EQ-5D index and the EQ-5D VAS score were calculated and HbA1c levels were assessed.ResultsThe change in the EQ-5D-5 L index score (post-pre) was 0.01 in the control group and 0.04 in the intervention group (P = 0.041). The change in the VAS score was −0.07in the control group (post-pre) and 2.66 in the intervention group (P = 0.000).ConclusionPharmacist counseling may help improve the HRQoL of Prolanis T2DM patients.