Dr. Kolff’s impact began with a simple observation: underserved communities needed physicians, and many physicians wanted the flexibility of travel and varied clinical work. After temporary assignments in Yellowstone National Park and a Harvard degree in Health Policy and Management in 1979, he founded CompHealth and laid the groundwork for the modern locum tenens model — turning temporary staffing into a sustainable, high-quality answer to healthcare access, so that no community would go without essential medical care.