The measurement of charm and bottom in p+p collisions checks the validity of perturbative QCD (pQCD) predictions and provides an important baseline for $J/\Psi$ production in heavy ion collisions. Results from Au+Au collisions enable us to study the nuclear modification of heavy flavor production in the hot dense matter created at RHIC, providing information about heavy quark energy loss and/or thermalization effects. PHENIX allows the measurement of semi-leptonic decays of heavy flavor. Using p+p and high statistics Au+Au data collected in the 2003/2004 runs at $\sqrt{s_{NN}}$ = 200 GeV, electrons from charm decays have been studied and the nuclear modification factor ($R_{AA}$) and azimuthal anisotropy parameter (v2) have been extracted as a function of collision centrality. The results will be compared with theoretical predictions.