Yes, there is an established ME community here. Most are from Lebanon, Syria, Jordan and Palestine, mostly Christians as I mentioned above. Many are prominent in business and politics here: you see ME names like Nader, Atallah, Khouri and so on cropping up all over the place. ME recipes like kibbes and tabbouleh have become part of typical Dominican cuisine thanks to these immigrants, although the names have been Dominicanised as "quipe" and "tipile".
Restaurants: Scherazade on Roberto Pastoriza is sort of Middle Eastern/Mediterranean. There is also a little one on Churchill nr the esq. Bolivar, can't remember the name. L'Epiciere de l'Orient on Plaza Paseo de la Churchill on Churchill esq. Pastoriza is a ME delicatessen which also serves ME snacks. The two falafel places are Israeli-owned: one in Zona Colonial and the new one on Jose Amado Soler between Lincoln and Lope de Vega. There is a current thread about this with more details. There are probably more, but I can't think of them right now.
I read somewhere that there is a newish place in the Zona Colonial doing Moroccan style-food :lick: (not the one on Arz. Portes with the belly dancing, that seems to have closed down) - does anyone know about this?
As for your other query about people from FYU, I am told that a large number of the musicians in the Dominican symphony orchestra are from there. I've also heard that there are some Bulgarians around.