PATIENT SERVICE CENTER PHONE & FAX Hours of Operation ; St. John Medical Center - Siegfried Tower 1923 S Utica Ave 5 Siegfried Tower Tulsa, OK 74104 Get Directions Full STAT Testing Available on site! (918) 744-2500 (800) 722-8077 (918) 744-2734 (5th floor PSC fax) Open 24 hours 7 days a week: RML#6.