Kelly Delaney-Nelson

About Dr. Delaney-Nelson

Dr. Kelly Delaney-Nelson is board-certified in internal medicine and rheumatology.

She earned her Bachelor’s Degree in Biology from the University of St. Thomas in St. Paul, MN, and her medical degree from the University of South Dakota Sanford School of Medicine. Dr. Delaney-Nelson completed her internal medicine residency at the Gundersen Health System in La Crosse, WI, where she also served as Chief Resident for one year. In 2020, Dr. Delaney-Nelson completed her Rheumatology Fellowship from the University of Missouri. Prior to joining CNOS, Dr. Delaney-Nelson was a Hospitalist for the Gundersen Health System.

Dr. Delaney-Nelson grew up in North Sioux City, SD, on McCook Lake. She enjoys boating, fishing, watching sports, and spending time with her husband and daughter.


  • Board Certified in Internal Medicine and Rheumatology

Physician Assistant

Rosa Marquez

Rosa Marquez

Nurse Practitioner

CNOS provider: Kelly Delaney-Nelson

Katie Wictor

Background Information

Clinic Locations
Other Specialties
  • Fellowship: University of Missouri – Columbia
  • Residency: Gundersen Health System in La Crosse, WI
  • Medical Education: University of South Dakota

Patient Testimonials

I am so impressed with Dr. Delaney-Nelson. Took all the time I needed and listened really well. I haven’t felt so seen or heard in years. Felt real care and concern from her, the way doctors should treat patients. Superb experience!

- Dr. Delaney-Nelson's Patient

Love Dr. Delaney-Nelson! She is very knowledgeable & friendly! I trust her with my health!

- Dr. Delaney Nelson's Patient

Dr. Delaney Nelson , spent time with me going over my medication list and what medication would be best for me to start for Lupus. She explained everything in detail and was very attentive to my questions. This is my second visit with her and I highly recommend her and also respect her as a physician.

- Dr. Delaney-Nelson's Patient

Dr. Delaney-Nelson was thorough, friendly, and knowledgeable. Would recommend to anyone!

- Dr. Delaney-Nelson's Patient