Primary Job Title CEO Primary Organization 
Circadiance
Location Murrysville, Pennsylvania, United States Regions Great Lakes, Northeastern US Gender Male
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David Groll, Founder and CEO, has developed, manufactured and sold medical devices for over 30 years. Before starting Circadiance, David held senior management positions in several other medical device companies. David was founder and CEO of Vincent Medical, a company that performs contract manufacturing of medical devices in China, which he then
sold in 2002. From 1986 to 1997 David worked for Respironics, where he ran the Patient Interface Group and was responsible for the development of the Respironics PAP masks. He completed his career there as General Manager of Respironics Hong Kong Ltd, where he was responsible for running the Asian factories that manufactures the Respironics masks. 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.
