Joseph S. Tan Isabela | 4th District House of Representatives, Quezon City Room: SW-509 Phone: 8931-6235 Direct:7415 Principal Authored Bills more Co-Authored Bills more Committees more Joseph S. Tan Isabela | 4th District House of Representatives, Quezon City Room: SW-509 Phone: 8931-6235 Direct:7415 Principal Authored Bills more Co-Authored Bills more Committees more