Our Specialties & Sub-Specialties
CNOS provides medical treatment and preventative services for a wide variety of your healthcare needs. Whether you need diagnostic screenings, physical/occupational therapy, or non-surgical/surgical interventions for a major health condition, our multidisciplinary team offers personalized care at a location near you. We pride ourselves in bringing reliable care close to home.
The Latest News from CNOS
CNOS and Avera are excited to announce a new partnership. Your care team isnโt changing. Learn more.
Avera Acquires CNOS Avera and The Center for Neurosciences, Orthopaedics & Spine (CNOS) are excited to announce Averaโs acquisition of the CNOS practice based in Dakota Dunes, SD. This partnership includes over 100 CNOS physicians, advanced practice providers,...
Inside CNOS Orthopaedic Urgent Care: The Patient Experience
Link to the video here! DAKOTA DUNES, S.D. (KTIV) - When you face an injury, do you push it off and see if the pain lingers? Or, do you go get it checked out right away? The CNOS Orthopaedic Urgent Care sees everything and anything when it comes to bone and joint...
Inside CNOS Orthopaedic Urgent Care: A Day in the Life of Physician Assistants
Link to the video here! SIOUX CITY (KTIV) - There is a lot that goes on in any medical clinic. The CNOS Orthopaedic Urgent Care is no different. We joined in on โa day in the lifeโ of CNOS Certified Physician Assistants.Tyson Allen has a full morning seeing patients,...
Your Team, Our Communities
Our integrated physician and professional network serves patients from many convenient locations throughout Iowa, Nebraska, and South Dakota.
Find a clinic location near you!
Dr. David Rettedal, Foot & Ankle Care
As a mom knowing your child is hurt causes a buildup of emotions. Now add your daughter needing surgery and the overwhelming amounts of anxiety and fear set in. Dr.Rettedal and his staff at CNOS were a blessing. They answered ...
Dr. Michelle Daffer, Dermatology
Dr. Daffer and her staff were all very kind and explained everything going on with my problem. I will see her again for any other issues I may have! From Stephanie helping me with an appointment to checking in to checking out...
Dr. Benjamin Bissell, Orthopaedics
Dr Bissell and his P.A. were great to work with throughout my initial visit for my shoulder through the surgical procedure. Even when I was frustrated and impatient with the process, Dr Bissell took the time to make sure I fully understood and ...
Dr. Sarah Bligh, Gastroenterology
After gone through my first visit, I am extremely happy that Dr. Bligh will be treating me. I was especially impressed by her communication skills and that she had full knowledge of my medical history as I related to my issues. Thank you so ...
Dr. James Case, Neurology
Dr. Case is a good listener and asked questions that I could understand and respond to with ease. Sue, the RN, was wonderful to work with as well. I am pleased that they will walk with me through the...
Dr. Ryan Meis, Orthopaedics
Dr. Meis & staff were awesome! Answered my questions, listened to my concerns, spoke to me in terms I could understand & showed genuine concern in finding a course of action to relieve my pain. Have nothing but high praise...
Dr. Mei He, Neurology
Dr. He and her staff were wonderful throughout the tests as well as the follow up conference. I felt blessed to have them for my medical team.
Dr. Steven Meyer, Orthopaedics
Dr. Meyer and his PA, Nicolle, have both provided excellent care for my wife and myself. I consider Dr. Meyer to be among the best, if not the best, orthopedic surgeons in the world, and Nicolle's skill set is second to none. The convenience ...
Dr. Jeffrey Michalak, Gastroenterology
Dr. Michalak was great. He diagnosed a condition that I've suffered with for quite a while quickly, explained the condition and treatment very well in a manner that was easy to understand.