Sam's Club #6423 Share: Retail Sam's Club #6423 Visit Website Request Info 300 North Galleria Drive Middletown, NY 10941 (845) 692-5108 (845) 692-5150 (fax) About Map About Sam’s Club®, a division of Wal-Mart Stores, Inc. (NYSE: WMT), is a leading membership warehouse club offering superior products, savings and services to millions of members in 653 clubs in the U.S. What's Nearby? Distance: 5 10 15 20 25 50 mi.