Here's the list of certified pizza makers that strictly adhere to Naples standards. Note the inclusion of Bertucci's, which makes it easier for people not living near any of the spots below to sample the wares. Personally, I appreciate the cultural value of these types of pies, but my preference is for New Haven style.
Antica Pizzeria - Los Angeles, CA
Coppola-Niebaum Cafe' - Palo Alto, CA
Punch Neapolitan Pizza - Minneapolis, MN
Naples 45 - New York, New York
Regina Margherita - Pittsburgh, PA
La Pizza Fresca - New York, NY
Il Pizzaiolo - Mt. Lebanon (Pittsburgh), PA
Il Ritrovo - Sheboygan, WI
Two Amy's - Washington, D.C.