Hi mexicogic,
Although Gran Padano is Italian, it is not Parmigiano Reggiano. The dots on the rind tells you what they are. There are numerous cases of faking cheese all over the world. Parmigiano Reggiano is best obtained in Parma it's self. A famous cheese expert nailed a very famous NY Italian restaurant that gave her Gran Padano claiming it was Parmigiano Reggiano. So be very alert.
Okay, back to the topic.