Dana Lewis

Founder of #OpenAPS
Creator of the “Do-It-Yourself Pancreas System”


Dana Lewis is founder of the Open Source Artificial Pancreas System (, a community-driven open source movement that has produced many innovative technological improvements for managing Type I diabetes. She is also an independent healthcare researcher, serving as PI or co-PI on numerous grant-funded projects in leveraging open source diabetes technology to improve diabetes care, and published the first book on automated insulin delivery (‘artificial pancreas’) technology.


In 2013, Dana Lewis reached peak frustration with her inability to hear her continuous glucose monitor (CGM) alarms while sleeping. Open source code enabled her to design her own solutions and eventually iterate and build a DIY hybrid closed loop “artificial pancreas” system. This evolved into the OpenAPS movement, an open and transparent effort to make safe and effective basic Artificial Pancreas System (APS) technology widely available to more quickly  reduce the burden of living with Type 1 diabetes. Dana will share her experiences in designing her own system(s) to help her existing medical devices interoperate, iterating and improving human and computer interactions, and how engaging with patients can help everyone improve healthcare through better research and design.