The nation’s largest retailer and employer now wants to become its largest primary-care provider as well. Last month Walmart sent out a request for information seeking partners to help it "dramatically ... lower the cost of healthcare ... by becoming the largest provider of primary healthcare services in the nation." The document, obtained by NPR and Kaiser Health News, says the company would offer a range of services, from basic prevention to the management of chronic conditions such as HIV and depression. Analysts say the retailer is likely attempting to boost store traffic. Partners will be selected in January.