Your browser does not seem to support frames. This website is a doctors office in Waukegan Illinois. Doctor Xavier Parreno MD. This Doctors Office serves Waukegan, and the surrounding area. Please use Internet Explorer, Firefox, Opera or any other browser that supports frames. This doctors office in addition to Waukegan serves the greater Lake County Area such as North Chicago, Zion, Beach Park, Gurnee, Wadsworth, Round Lake, Round Lake Beach, Round Lake Heights, Grayslake and more. Additional Pages