Arvest Names Medical Center COO Michael Stewart to Springdale Board by Chris Bahn Posted 1/8/2013 11:01 am Updated 2 years ago Arvest Bank has named Michael Stewart to the board of directors for Arvest Bank in Springdale. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.