Essentia Health-St. Mary's Medical Center Essentia Health-St. Mary's Medical Center Search | Advanced Search | New Members | Coupons and Discounts | All Categories Health Care >> Hospitals Essentia Health-St. Mary's Medical Center 407 East Third StreetDuluth, MN 55805 | View on Google Maps (218) 786-4000 | fax: (218) 786-4383 Visit Site If your business isn't here, contact us today to get listed!