John Diehl

John Diehl is a licensed Hearing Instrument Specialist who owns an Audiological and Optical practice in Hanover, Pennsylvania. He acquired the business with his wife, a medical technologist in 2009, and together they have grown to employ over 20 employees. As a medical professional who has personally experienced and overcome the devastating effects of tinnitus and hyperacusis, he wrote this book to share his experience with people who have suffered similar disorders.

John Diehl is a licensed Hearing Instrument Specialist who owns an Audiological and Optical practice in Hanover, Pennsylvania. He acquired the business with his wife, a medical technologist in 2009, and together they have grown to employ over 20 employees. As a medical professional who has personally experienced and overcome the devastating effects of tinnitus and hyperacusis, he wrote this book to share his experience with people who have suffered similar disorders. See less