PATIENT EDUCATION PAY BILL ONLINE PAY BILL USING CARECREDIT PATIENT PORTAL ACCESSIBLE LOGIN FOR VISUALLY IMPAIRED ... Address and Directions. 600 Sioux Point Road Dakota Dunes, South Dakota, 57049 Phone: 605-232-3332 Fax: Hours of Operation: 7 Days a Week 24 Hours a Day Driving Directions. Welcome To Dunes Surgical Hospital..