Mercy Health Enters Arkansas by Mark Friedman Posted 10/2/2006 12:00 am Updated 6 years ago Mercy Health Plans of St. Louis began selling insurance in Arkansas in May as a result of the "any willing provider" law. 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.