Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer David G. O'Brien, Practice Areas No known practice areas. is located in the city of Port Jefferson Station, the state of New York. Attorney legal address 68 Village Green DrPort Jefferson Station, NY, 11776-4508. For more information, please call (516) 650-0499 Your comments* (not for publishing) * — Required information David G. OBrien ← View details 68 Village Green DrPort Jefferson Station, NY, 11776-4508, Port Jefferson Station, New York (516) 650-0499