Jeffrey Long, MD, is a radiation oncology physician practicing full-time in Kentucky. More than 25 years ago, he founded the Near-Death Experience Research Foundation (NDERF). Dr. Long has investigated more than 4,000 near-death experiences (NDEs), which is by far the largest number of NDEs ever scientifically studied. 

The results of his previous research were published in the New York Times best-selling book, Evidence of the Afterlife: The Science of Near-Death Experiences. Millions of people have seen Dr. Long discuss his research on shows including TODAY, The Dr. Oz Show, National Geographic television, History Channel, CBS Inside Edition, The O’Reilly Factor, and on television broadcasts around the world.  Dr. Long was interviewed for the NDE-themed movie After Death, which was released in 2023.