Mark Hempel, based in Freeport, IL, US, is currently a Advisor at Institute of HeartMath, bringing experience from previous roles at Bushel, Sumbola, Lightcode and Heartmath Institute. Mark Hempel holds a Humphrey Institute. With a robust skill set that includes User Interface Design, Information Architecture, User Experience, HTML 5, Web Applications and more, Mark Hempel contributes valuable insights to the industry. Mark Hempel has 1 email on RocketReach.