The possibility of using modern digital educational technologies in the formation of key competencies of a doctor is shown on the example of the entropy-probability model, which is a synthesis of the system-entropy approach and multidimensional risk analysis of stochastic systems. Examples of practical application of this model in preventive medicine are given: Analysis of population entropy in the prevention of noncommunicable diseases, comprehensive assessment of the effectiveness and safety of medicines, quantitative assessment of population health with the determination of the contribution of individual risk factors, and systematic analysis of population changes in monitoring risk factors. The introduction of entropy-probabilistic modeling in the educational process will help in the formation of the doctor's basic universal, professional competencies and systematic clinical thinking.