There is no doubt that in this hectic world, many companies seek to implement Knowledge Management (KM) as a part of their supply chain management (SCM). However, many factors affect them in many ways. As a result of this research, we will be able to find out which of these factors influenced the implementation of knowledge management in supply chain management in healthcare facilities. In order to identify the most prominent factors in this research, the Best-Worst Method (BWM) has been applied. Due to the fact that decision makers have to deal with a vague environment, DMs have to be integrated with proper methods in order to cope with this problem. The D-number is a kind of fuzzy number that is one of these methods, one of the types of fuzzy numbers. To find and prioritize the best criterion that will impact the implementation of Knowledge Management in Supply Chain Management with the Best-Worst Method, we conducted this research. This model of decision-making attempts to eliminate the pitfall of Analytical Hierarchy Process by using a Multi-Attribute Decision-Making strategy. Using multi-criteria decisionmaking in uncertain environments, this paper reviews the literature on knowledge management applied to Supply Chain Management (SCM). These methods have not been implemented in the healthcare industry in previous studies, both theoretically and methodologically. Based on the results of the study, it should be noted that, among the 12 criteria, two of them have been eliminated with the use of the Delphi method; culture capacity is the most important criterion and should be targeted by healthcare facilities companies.