This study aims to provide information on the relationship between the accessibility of healthcare and avoidable mortality. Many of the general indicators such as health care expenditures, mortality, life expectancy are insufficient in comparing the national healthcare systems, because they explain only a small amount of diversity caused by socioeconomic factors. The study is based on the panel data analysis for the period from 1998 to 2015 in Slovak republic. As the indicator that takes into account socioeconomic factors and represents the level of provided healthcare, the depended variable is avoidable mortality. Independent variables represent the availability of healthcare in regions. Models were estimated separately for women and men. The results demonstrate differences between sexes, lower amenable mortality in case of women, correlated to availability of practitioners, dentists, specialists, pharmacies and gynecologists. For men, there is evidence of a relation between amenable mortality and the accessibility of specialists, pediatricians, practitioners and pharmacies.