Over the past few decades, the number of older adults in desperate demand of social support is inevitably increasing with an aging population. Thus, there is a need for a social framework that can improve the quality of life of older adults. In Japan, where the population faces a super-aging society, the aim is to establish a community-based integrated care system that supports the elderly throughout the community. In August 2021, the Japanese government partially amended the Act on Securing Quality, Efficacy and Safety of Products Including Pharmaceuticals and Medical Devices to expand the flexible healthcare provision, which forms the basis of that system. This amendment encourages patients to choose pharmacies that better meet their needs by establishing a framework for publicly certifying pharmacies that play essential roles in community healthcare, including home healthcare, and pharmacies that can provide specialized medical care. However, the actual effects of the intervention remain unclear. Thus, we explored changes in efforts related to regional medical collaboration and functions in community pharmacies before and after the enforcement of the amended Act. Our survey revealed that the amendment increased the stockpiles of generic medicines at each pharmacy without a clear increase in the number of employees. Additionally, there was an across-the-board improvement in the provision of information to other medical providers and patients. These results indicated that the amendment to the Act directly or indirectly promoted a shift from conventional pharmacy to a more patient-oriented approach.