Walgreens’ massive Customer Centric Retailing initiative is transforming the way the company’s stores are merchandised and designed as it rolls into an ever-larger proportion of its more than 7,600 stores across the United States. But it’s only the opening drive in a campaign to “reinvent the customer experience in our stores,” president and CEO Greg Wasson told shareholders Wednesday.

Walgreens kicked off an expanded 2008 Take Care Health Tour this week that will hit...