The aim of this study is to comparatively examine the relationship between countries’ health tourism–oriented destination branding performance and international tourism revenues at the regional level. In this context, Medical Tourism Index (MTI) data are used to represent destination branding performance in health tourism, while international tourism revenues are employed as an indicator of economic output. Due to the lack of standardized and comparable country-level data on health tourism revenues, total tourism revenues are used as an indirect proxy. This approach is justified by the fact that health tourism constitutes an integral and increasingly significant component of overall tourism flows, and its economic contributions are generally embedded within aggregate tourism statistics reported at the national level. The study adopts a descriptive and comparative research design based on secondary data. The analysis focuses on the joint distribution of MTI scores and tourism revenues across countries and regions without implying causal relationships. The findings reveal that the relationship between destination branding performance and tourism revenues varies significantly across regions. In Europe and the Americas, countries with relatively high MTI scores, such as Spain, the United Kingdom, Canada, and the United States, also tend to exhibit higher tourism revenues, suggesting a more consistent alignment between branding performance and economic outcomes. In contrast, in other regions, similar levels of branding performance are associated with more heterogeneous and less predictable revenue patterns. In the case of Türkiye, the findings indicate a distinct profile: despite recording relatively high tourism revenues, the country’s MTI-based health tourism branding performance remains at a moderate level. This divergence suggests that overall tourism revenues may be driven largely by general tourism dynamics rather than health tourism–specific branding strength. Overall, the results demonstrate that health tourism performance cannot be adequately explained by a single indicator. Instead, it reflects a multidimensional structure shaped by the interaction of destination branding, healthcare quality, infrastructure, and country image. The study highlights that reliance solely on aggregate tourism revenues as a proxy may lead to incomplete interpretations, particularly in country-specific analyses, and emphasizes the need for a more comprehensive and multidimensional evaluation framework.