Contact Us [one_third] St. John's Mercy Medical Center Fax: 314 991-3665 Phone: 314 991-3668 Address: 621 S. New Ballas Road, Suite 7005, St. Louis, MO. 63141 View Larger Map Office Hours Open Closed Monday 8:30 4:30 Tuesday 8:30 5:30 Wednesday 8:30 4:30 Thursday 8:30 4:30 Friday 8:30 12:00 [/one_third] [one_third] Arnold Fax: 636 296-4051 ....