Marshfield Clinic Health System has signed an affiliation agreement with Sanford Health, agreeing to combine their assets and capabilities to create an integrated health system. Bill Gassen, president and CEO of Sanford Health, says the affiliation agreement is a significant milestone, signifying the organizations are one step closer to combining. Marshfield Clinic Health System Interim CEO Dr. Brian Hoerneman said Marshfield Clinic Health System found a partner that closely aligns with its culture, mission and values in Sanford Health, and the health system looks forward to working together as the "premier rural health system in the United States."