How to find Vthreshold and K (or beta) in Pspice/Orcad
In the case of a MOS transistor, the threshold voltage, and the transconductance coefficient can be extracted from a spice model.
So, the threshold voltage \$V_T = V_{TO} = V_{GS(TH)} =1.73V\$ in case of your model.
And the \$K\$ factor is:
\$K = K_P\frac{W}{L} = 1.073\mu\frac{0.12}{2\mu} = 64.38\textrm{m} \frac{A}{V^2}\$
The end.