Keith Widmeier began his EMS career as a volunteer firefighter/EMT in the suburbs Philadelphia, and later moved to Kentucky to pursue his undergraduate degree. He has worked as a paramedic in urban, suburban and rural settings, and as a mobile intensive care paramedic, and flight paramedic.
Widmeier is an accomplished author in various trade and scientific journals, as well as many textbooks. In education, he served as a training officer for a rural third-service EMS system, as well as the inaugural program director for a community college paramedic program in southern Kentucky, operating two campuses. He continues to be active on a variety of national EMS committees.
Widmeier serves as an EMS education specialist at the University of Cincinnati College of Medicine. He is a regular lecturer at local, state and national EMS conferences, where he also teaches a variety of continuing education courses, coordinates the Mobile Critical Care Provider course, and assists in teaching emergency response courses to medical students.