At CentraCare - Willmar Surgery Center, we do everything possible to make your same-day surgery personal, comfortable and convenient. From the time you come through the door until you leave, you will appreciate the quality and professionalism of our expert, trained team. Our goal is to provide you with the best, most effective care so you can return to your normal activities as quickly as possible. CentraCare - Willmar Surgery Center is accredited by the AAAHC (Accreditation Association for Amulatory Health Care).