The article describes the path of scientific and technological development and commercial prospects of Big Data technologies in the field of healthcare in the world and Russia. The results of the patent-conjuncture analysis of trends in Big Data in medicine are represented. It showed a high potential for the formation of new markets and market niches and services in this area. The main trends of the evolution of technological solutions in the area of Big Data in the field of health were identified. An assessment of the global competitiveness of the Russian Big Data development in the field of medicine was given.