His name was Dr. Pizzutillo, an Italian American, whose name, apparently, was too difficult for most Americans to pronounce, so he went by Dr. P.
Пицутилло эмч. Италийн Америк, нэрийг нь ихэнх  Америкчууд дуудахад маш түвэгтэй тул өөрийгөө Пи эмч гэх болсон.