Wal-Mart Picks Mercy-Springfield for Employees' Free Surgeries by Serenah McKay Posted 10/29/2012 11:21 am Updated 4 years ago About 1.1 million employees are covered. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 15 days. Purchase Now Already have archive access? Login to view this article.