David Groll, the Founder and CEO of Circadiance, has been developing, manufacturing and selling medical devices for over 35 years. David held senior management positions in several other respiratory and remote monitoring companies. Mr. Groll founded, was Managing Director of, and later had a successful exit from Vincent Medical, a company that performed contract manufacturing of medical devices in China. Mr. Groll holds a Bachelor of Science Degree in Biomedical Engineering from the University of Texas at Austin and a Master’s Degree in Manufacturing Systems Engineering from the University of Pittsburgh.