Graduated from the University of North Carolina at Chapel Hill, The doctor. Alexander received his medical degree from Duke University School of Medicine in 1980.
He taught neurosurgery at Harvard Medical School in Boston for fifteen years., and has done more than 4.000 neurosurgery operations.
During his academic career, He was the author or co-author of more than 150 chapters and articles in peer-reviewed journals, authored or edited five books on radiosurgery and neurosurgery, and made more than 230 presentations at conferences and medical centers around the world.
He is the author of the best sellers "Proof of Heaven", “The Map of Heaven” y “Living in a Minder Universe”.
From his NDE, The doctor. Alexander has dedicated himself to sharing information about near-death experiences and other experiences of spiritual transformation., and what they teach us about consciousness and the nature of reality.