The results of searching for "dentista": 3 Spanish-speaking places
There are also organizations that speak other languages: English, French, and Russian.
Avenida da Liberdade 220 1250-147 Lisboa Portugal
Rua Doutor Gama Barros 27A 1700-265 Lisboa Portugal
Rua Gilberto Rola 62A 1350-159 Lisboa Portugal