In this study, Porter’s value chain methodology is modified and applied to procurement strategy development of institutions countering HIV/AIDS and
tuberculosis (TB). The healthcare value chain (VC) methodology involves modeling of hospital care by means of the VC-model, dividing hospital activities into ones
implemented in its subdivisions (logistics, production, marketing), and supporting ones (finance HR, procurement, etc.), and the care delivery value chain (CDVC) which for a specific disease structures the process of providing care, considering the contribution of all types of activities to the fixed components of patient value (accessing, measuring, informing) at each of its stages. In the paper, (1) CDVC of TB-institutions is developed, (2) CDVC-model is modified by means adding logistics chain link and fourth component of patient value (patient’s well-being), (3) modified CDVC model is applied to develop the procurement strategy of HIV/AIDS institutions. This study (1) combines VC and CDVC within a modified VC-model; (2) develops a methodology of applying this model to construct a procurement strategy for institutions in question; (3) suggests some measures to prevent suppliers from collusive behavior. The paper develops models discovering collusive behavior and thus contributes to higher quality of anti-AIDS medicine and reagents and to lower their costs. The paper promotes procurement integrity and patient orientation of the procurement strategy. The paper suggests full
fledged TB CDVC and opens ways to apply modified CDVC to develop procurement strategy.