It's not a commonly used term in standard Italian. You're more likely to hear "Pisano" instead.
Here are some examples of how it might be used:
* "Il pizano è famoso per la sua torre pendente" (The Pisan is famous for its leaning tower).
* "Questo piatto è una ricetta pizana tradizionale" (This dish is a traditional Pisan recipe).
Keep in mind that "Pizano" might be considered a bit informal or even outdated, so using "Pisano" is generally safer.