By now, I think AMS Designer is the best simulator to handle verilog(d,a, ams) and spice(spectre or hspice netlist). The ams simulator comes from Cadence.
You can use the mixed-signal simulation flow by modeling the verilog in digital simulator and modeling the verilogA simulator. For example, ncsim+hsim
or VCS+nanosim/hSPICE
If u need a transistor level circuit simulator, so u may use Spectre or SpectreRF
But if u need a chip level circuit simulator, u may use an emulator and install OrCAD on it.