Ion Ratiu
  Ion Ratiu is CEO of the Austin Thyroid and Endocrinology Center in Austin, Texas. He earned his PhD in electrical engineering and computer sciences at the University of California, Berkeley. After a postdoctoral fellowship at the Technical University in Hanover, Germany, he spent twenty years at IBM in advanced technical development and technical and business strategy, managing more than $1 billion in revenue. Dr. Ratiu is a trustee of the Witherspoon Institute.