Au+Au collisions at RHIC create a hot and dense medium that exhibits novel properties. Study of these properties and hadronization mechanisms of the medium requires identified particle results over wide transverse momentum(pt) range, as the bulk of particles are contained below 2 GeV/c. High pt particles probe medium at early stages. The intermediate pt region contains information about the transition between jet fragmentation and quark coalescence. We present STAR results of identified pions, kaons, (anti-)protons up to transverse momentum of 12 GeV/c in Au+Au, p+p and d+Au collisions at 200 and Au+Au collisions 62 GeV. At low pt particle identification is achieved by traditional dE/dx techniques. The TOF patch combined with TPC dE/dx is used at intermediate pt. The relativistic rise of dE/dx is exploited above 3 GeV/c. Spectra, ratios, and the nuclear modification factors are discussed and compared to jet fragmentation, partonic energy loss, and coalescence/recombination models.