We explore the implications of Higgs mixing on the higgsino within the general next-to-minimal supersymmetric Standard Model (NMSSM). Extended to include a gauge singlet, the Higgs sector can explain the observed Higgs boson mass in TeV scale supersymmetry without invoking large stop mixing. For the case that the singlet scalar is light and has properties consistent with the LEP constraints, Higgs mixing has interesting phenomenological consequences. The singlet-doublet mixing increases the mass of the SM-like Higgs boson. In addition, for the mixing compatible with the current LHC data on the Higgs signal rates, we find that the higgsinos are required to be relatively light, around or below a few hundred GeV, as long as the heavy doublet Higgs boson has a mass smaller than about 250\sqrt{\tan\beta} GeV. This follows from the fact that the higgsino mass parameter and the singlet coupling to Higgs bilinear crucially depend on the Higgs boson masses and mixing angles.
