Our Lady of the Lake Surgical Hospital performs a broad range of outpatient surgical procedures. Our mission is to care for every patient as if they were our own. ... TEXT-ONLY PATIENT PORTAL. Address and Directions I-10 at HWY 190 1700 Lindberg Drive Slidell, Louisiana 70458 Phone: (985) 641-0600 Fax: (844) 269-8002 Hours of Operation: 7 Days ....