Dr. Hendler graduated from Princeton, went to University of Maryland School of Medicine for his MD, and MS, and did a residency at Johns Hopkins Hospital. He was assistant professor of neurosurgery, Johns Hopkins University School of Medicine for 31 years, and past president of the American Academy of Pain Management. He has authored 4 books, 34 medical textbook chapters, and 76 articles, testified on medical issues at the request of the US Senate three times, testified in 300 depositions and 75 trials in 12 states and lectured at over 60 hospitals and medical schools in 11 countries. He has served on the board of two multi-billion dollar public companies.