The word medina is a) the name of a city in Arabia but also, apparently, a generic term meaning city in Arabic, and b) a Hebrew word that means country. It is also a Hispanic family name, probably arriving in Spain with either the Arabic conquest or the Jewish diaspora (or both). So, it may mean that someone has Spanish ancestry and possible Arab or Jewish ancestry 500 years ago.
There are Sephardic Jews with the last name Gamero, although not every person named Gamero is Jewish. For instance, the Honduran author Lucila Gamero de Medina was Catholic.
Gaby Medina's birth name is Gabriela Medina.
Gil Medina's birth name is Gilbert Medina.
Pen Medina's birth name is Crispin Medina.
Adam Medina's birth name is Adam Xavier Medina.
Ben Medina's birth name is Benjamin Eugene Medina.
Ruzzo Medina's birth name is Hiram River Medina.
Ofelia Medina's birth name is Medina Torres, Ofelia.
Cecy Medina's birth name is Cecy de Medina Silva.
Marisa Medina's birth name is Mara Luisa Guiu Medina.
Ping Medina's birth name is Crispin C. Medina II.
Medina old name was Yethreb