Trinity Health Attn: ROI PO BOX 5020 Minot, ND 58702 E-MAIL: trinity.roi@trinityhealth.org NOTE: Trinity Health does not accept electronic signatures. PHONE NUMBER: (701) 857-5390 FAX NUMBER: (701) 857-5778. In Person: Trinity Hospital - St. Joseph's 407 3rd Street Minot, ND 58701 Take the main elevator to 3rd floor..