Dr Barry Marks Chiropractor in Orange CA since 1986. Dr. Marks is a former Associate Clinical Professor at a leading Chiropractic College and is the author of numerous books and articles on pain relief and natural health. Dr. Marks has extensive post-doctorate specialty training in Orthopedics, Auto Crash reconstruction, Whiplash & Brain Injury, MRI interpretation, Disability Evaluation , Functional Neurology and more. He has lectured to doctors and attorneys regarding disc herniation, MRI interpretation and diagnosis.