Are you looking to make a compact device model?  There's a fair bit of material out there on Verilog-A compact modeling, and Synopsys' HSpice has a Verilog-A compiler (it may require a license).  

If you click on "Verilog-AMS" in the menubar in the header of this page, you'll find a page of some sample models.  I guess you'd want to download one of the "semiconductor device" models.  It looks like all the test circuits are in Spectre format, so you'll have to convert them to HSpice.  Then run that test case and see if your version of HSpice works with Verilog-A.