Hershfield, Jon: - Jon Hershfield, MFT, is director of The OCD and Anxiety Center of Greater Baltimore in Hunt Valley, MD. He specializes in the use of mindfulness and cognitive behavioral therapy (CBT) for obsessive-compulsive disorder (OCD) and related disorders. He is author of When a Family Member Has OCD, and coauthor of The Mindfulness Workbook for OCD and Everyday Mindfulness For OCD.