Most primary care physicians (PCPs) and nephrologists appear to favor utilizing collaborative care for patients with progressive chronic kidney disease (CKD), according to a nationwide analysis. Most PCPs and nephrologists in the study desired collaboration for managing CKD, but nephrologists were more likely than PCPs to prefer collaboration that focused on pre-dialysis or renal replacement therapy preparation and electrolyte management. PCPs were more likely to desire collaboration if patients have diabetes and hypertension, if they believed the care they provide helps slow CKD disease progression, and if they did not perceive health insurance as a barrier to nephrology referral.