Contact Dunes Clinical Research to Participate in a Study Contact Info 357 Tower Rd.Dakota Dunes, South Dakota 57049, US +1 (605) 217-7749 [email protected] Mon - Fri: 8:00 AM - 5:00 PM Sat & Sun: Closed Send Us a Message Name(Required) Email(Required) Phone Number(Required)MessageCommentsThis field is for validation purposes and should be left unchanged.