Walmart isn't known for generating great life-affirming experiences, writes FierceHealthFinance editor Ron Shinkman in his commentary this week. Nonetheless, Shinkman continues, its leadership is looking for a way to break into the healthcare business big-time. As reported by National Public Radio last week, the gargantuan retailer sent out a request for information to its vendors that said "Walmart seeks to dramatically ... lower the cost of healthcare while maintaining or improving outcomes and ... expand access to high quality health services by becoming the largest provider of primary healthcare services in the nation." That includes the management of chronic conditions such as diabetes. It's a bold promise--and one the company pretended to back away from not long after the NPR story broke. --Read the full FierceHealthFinance commentary about what Walmart's foray into primary care means for physicians