The company claims that all locations will be equipped for mobile payments by the end of October.
Eighteen stores in San Francisco and San Jose, CA already have the mobile payment readers.
With the new technology, consumers can pay for items by tapping their mobile devices via the Google Wallet app or on Paypass-enabled registers.
It also signals a direct competition with coffee giant Starbucks. Recently, Starbucks rolled out a commerce-enabled application that lets consumers buy items on their mobile devices