BACKGROUND The effectiveness of telemedicine strategies for the efficient management of chronic diseases has been evaluated by a number of studies, and the most recent umbrella review of meta-analyses on the topic concluded that there is sufficient evidence supporting the use of telehealth for patients with diabetes, hypertension, or heart failure. However, in-depth assessments of the cost-effectiveness of telemedicine are severely lacking. OBJECTIVE This meta-analysis aimed at estimating the Incremental Cost Effectiveness Ratios (ICER) of telemedicine for the management of type II diabetes mellitus, hypertension, and heart failure. METHODS We searched multiple databases for all randomized or quasi-randomized trials (RCTs), which evaluated the cost-effectiveness of telemedicine versus standard care for managing the selected diseases. The outcomes were the ICER per Quality-Adjusted Life Year (QALY), 1 mmHg reduction of systolic blood pressure (SBP), or 1% reduction of glycated hemoglobin (HbA1c), after 12 months of follow-up. Random-effect meta-analyses were run when sufficient data were provided, and weighted ICER means were computed. RESULTS A total of 22 trials were included in the systematic review (10,978 patients): ten on hypertension, all using telemonitoring, six on hearth failure, and six on diabetes, mostly using telephone support. Meta-analyses were possible for two outcomes only, as most trials did not report a measure of dispersion: (1) the summary estimate of ICER per QALY, based upon four trials (1974 patients), was $42,623 (while the weighted mean, based upon 5 trials, was $29,477); (2) the summary estimate of ICER per 1mmHg SBP reduction, based on five studies, was $27 (while the weighted mean was $132, based upon 9 trials). The weighted means of ICER per QALY for hypertension and diabetes were $22,769 and $40,503, respectively. Finally, the weighted mean of ICER per 1% HbA1c reduction was $3546. Some of the estimates were substantially lower when only recent trials were considered. CONCLUSIONS The results support employing telemedicine as a cost-effective strategy to monitor hypertension, heart failure and, depending on the willingness to pay, diabetes. Further RCTs reporting confidence intervals for ICER are required to confirm these findings.