Multimorbidity Multimorbidity refers to the presence of two or more chronic diseases, and is emerging as a major issue in Saudi Arabia; 20-30 percent of the adult population has a co-morbidity and is expected to stress health care services more as non-communicable diseases increase. The evidence of the gaps in care is synthesized in this review in the framework of patient-centered, integrated management models in primary health care (PHC). Prevalence across 35 studies is quite high with the highest rates of 47 percent in older adults and higher in females. Existing PHC systems are characterized by small levels of integration, disjointed services, and urban-based data, with primary care providers having a low level of awareness (29-40%) of multimorbidity management strategies. The promising methods, including the New Model of Care (MoC) demonstrate quantifiable outcomes, with hospitalization decreasing by 15-25% due to interventions and a multidisciplinary team. Visual summaries demonstrate trend patterns in prevalence, the effects of models, and care impediments. The discussion states the necessity of discussing urban bias and applying the gender-sensitive strategies. The recommendations aim at scaling MoC programs, using digital health tools, and policy reforms to provide equitable access and full care. These preventive, holistic, and integrated models have the potential to decrease the increasing burden of multimorbidity and enhance health and efficiency of resources in line with Saudi Vision 2030 and the Health Sector Transformation Program.