Based on the study, data on the compliance of physicians in compliance with national and international protocols for the diagnosis and treatment of hypertension based on the principles of evidence-based medicine were revealed. The obtained data testify to the presence of facts not observing the recommended protocols. In addition, on the basis of the data obtained, insufficient level of joint responsibility was determined, both on the part of patients and on the part of doctors. The result of not full compliance with the protocols for diagnosis and treatment of hypertension, as well as insufficient adherence to the principles of joint responsibility were facts not reaching the target level of blood pressure. This work allows us to determine the further path of development of studies on arterial hypertension and ensuring all levels of prevention.