The importance of post-stroke rehabilitation cannot be overestimated. The aim of this study was to assess the effectiveness of a standardized post-stroke rehabilitation program for patients with moderate impairments. A total of 122 stroke survivors participated in the study. Group 1 (the comparison group) consisted of 59 patients undergoing standard rehabilitation. Group 2 (the main group) consisted of 63 patients participating in a specially designed social rehabilitation program. The functional, cognitive, psychological and emotional states and the level of social activity were monitored for 6 months. Group 2 demonstrated more pronounced improvement than group 1 after 6 months of follow-up, confirmed by higher Rivermead (p = 0.011) and SS-QOL (p < 0.05) scores and lower DASH and Beck scores (p = 0.015 and p < 0.001, respectively). In both groups, MMSE (cognitive function) scores slightly increased, but the differences between the groups were insignificant. The proposed post-stroke rehabilitation program is effective in helping patients regain their independence and improve social adaptation. The scales and scores used in the study, especially DASH and SS-QOL, are sensitive to changes in the functional state of stroke survivors with moderate impairments.