The findings are based data gathered by the department's undercover investigators.
Consumer Services Commissioner Caroline Orzac Shoenberger says Walgreens had the most store locations cited. Of its 123 area stores, 84 were cited for overcharging.
Thirty-seven Oscos and eleven CVS outlets charged more than the posted price at the checkout.
City investigators say they didn't find evidence the overcharges were deliberate.
Experts say consumers often don't notice they've been overcharged because prices are posted in aisles, and not on products.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.