Certainly.  CalHFA is prohibited from offering refinances, but you should be able to work through virtually any other bank.  We'd suggest using a CalHFA Preferred Loan Officer, as they have undergone training and are familiar with CalHFA programs.  You can find a geographical list here:

http://www.calhfa.ca.gov/homebuyer/lenders.htm

Just click on the link "CalHFA Preferred Loan Officers."