About PRK Insurance PRK is a full service insurance agency that combines the caring and expertise of three seasoned professionals: Alan Preller, Lan Rice and Gerard Kleinfelder. Alan and Lan have served clients together for more than 30 years, operating in Wantagh, NY as Preller & Rice, Inc. and Gerard founded and operated the Kleinfelder Insurance Agency, Inc. in Massapequa Park for several years before the three friends had a brilliant idea: In 2008, they started talking and came to the realization that by joining forces they could serve clients even better and provide insurance even more effectively than they were already doing as separate entities!