As the name of the restaurant is written in Thai, it probably won't matter that this superb pad thai joint isn't commonly known by the name on the building: Thip Samai. Most locals will refer to it as Pad Thai Pratoopee which means "Door of the Ghost." Fortunately the street number is clearly on the red sign above the open storefront. With an opening date of 1966 you can figure the secret of success for this long running business is the quality.