Physicians & Surgeons/Surgery test2 CNOS is a physician owned, specialty clinic with locations in Iowa, South Dakota, & Nebraska. Our wide array of specialty services allows us to bring multi-disciplinary care closer to home. 42.5138616 -96.4973569 705 N Sioux Point Rd Ste 100 Dakota Dunes, SD test2 Highly-trained specialists for orthopaedic, neurological, neurosurgical, podiatric and rheumatologic conditions in the tri-state region of Iowa, Nebraska, and South Dakota. 42.4861183 -96.4109954 201 E 4th Street Suite 202 South Sioux City, NE test2 CNOS is a physician owned, specialty clinic with locations in Iowa, South Dakota, & Nebraska. Our wide array of specialty services allows us to bring multi-disciplinary care closer to home. 42.5371357 -96.3721822 2735 Outer Drive North Sioux City, IA test2 42.4860433 -96.4112795 201 E 4th Street Suite 201 South Sioux City, NE test2