The department of X-ray diagnostics of the out-patient center was used to carry out a sociological survey with the purpose of studying such social demographic characteristics of patients as level of education, material condition, benefits availability, degree of employment. The patients of advanced age visit the out-patient center most often for X-ray examinations because of diseases of nervous system, neoplasms and diseases of musculoskeletal system. In average, the patients wait their line for examination during up to three days. In both cases of implementing examination by appointment of hospital physician or by initiative of patient oneself (for fee) waiting time decreases. The main causes of using of paid medical care is the queue for free-of-charge examination and lacking of needed physician in polyclinic. The most of patients characterize scope of services provided in out-patient center as inadequate. At that, less than a half of respondents are agreed for broadening of paid diagnostic services. The readiness of patients for broadening of scope of paid services at the pre-hospital stage of treatment depend on their economic condition and employment status. The maximal readiness is expressed by working people with good economic condition. The application of obtained data provides an opportunity of optimizing of diagnostic care optimization.