Kuhlman traveled extensively around the United States and in many other countries holding "healing crusades" between the 1940s and 1970s. She was one of the most well-known healing ministers in the world. Kuhlman had a weekly TV program in the 1960s and 1970s called "I Believe In Miracles" that was aired nationally. She also had a 30-minute nationwide radio ministry of teaching from the Bible and frequently would feature excerpts from her healing services (both music and message). Her foundation was established in 1954, and its Canadian branch in 1970. Late in her life she was supportive of the nascent Jesus movement, and received endorsements by its key leaders, including David Wilkerson and Chuck Smith.