Us Health & Human Service Department 100 N Main Ave Sioux Falls, SD 57104 Phone : (605) 330-4860 Business Category Administration Of Public Health Programs United States Government--health And Human Services Dept Of, Office Of Inspector General, Office Of Investigations 100 S Main Ave Sioux Falls, SD 57104 Phone : (605) 330-4860 Business Category Government Offices-Federal Government Offices & Public Schools