Gregory D. Frattini » Member Directory Go back to directory. Gregory D. Frattini Troutman Pepper Hamilton Sanders LLP 501 Grant Street, Suite 300 Union Trust Building Pittsburgh PA 15219 postal Phone: 412-454-5855 Email: gregory.frattini@troutman.com No Logo Available Connections Business Directory | Leaflet | © OpenStreetMap contributors 501 Grant Street, Suite 300 Union Trust Building Pittsburgh PA 15219Get Directions