Crestline/Lake Gregory Office: Phone: (800) 419-9480 (Toll Free) Office Phone: (909) 338-1763 By Fax: (909) 338-2018 By Email: Office Address: 23522 Crest Forest Drive Crestline, CA. 92325 By Mail: P.O. Box 3255 Crestline, CA. 92325 Follow us on Facebook