A photo of Gary L. Geis.

Medical Director, Center for Simulation and Research

Attending Physician, Division of Emergency Medicine

Associate Professor, UC Department of Pediatrics



Board Certified

Best Doctors logo

My Biography & Research


My research interests include medical simulation, systems integration, patient safety and pediatric resuscitation. In addition, I am interested in investigating procedural care and simulation-based training. I have been funded for multiple clinical trials on a national level as a primary investigator and a co-investigator.

With my research, my team and I are attempting to find ways to strengthen airway management and team-based healthcare services for severely ill and/or injured children.

Along with these projects, I’ve assisted with study sections for the Agency for Healthcare Research and Quality and the National Institutes of Health (NIH). I have also reviewed several peer-reviewed journals.

I engaged in this kind of research because I am an educator at heart and enjoy the trials and challenges of caring for critically ill or injured pediatric patients. I was inspired to pursue medical training and work with children after seeing many great examples of superb physicians caring for patients and advancing medicine. This experience specifically included my advisor in medical school and one from my residency training, who are both pediatric emergency medicine physicians.

Over the years, I have been presented with teaching awards from the Cincinnati Children’s Hospital Medical Center, University of Cincinnati and external institutions. In 2015, I received an Educational Achievement Award from the Department of Pediatrics at Cincinnati Children’s Hospital.

I have more than 15 years’ experience in emergency medicine and I pursued a fellowship at Cincinnati Children’s Hospital in 2004. My research has been published in various respected journals, including Simulation in Healthcare: Journal of the society for simulation in healthcare, Journal of Neurosurgery: Pediatrics, Hospital Pediatrics and Academic Emergency Medicine.

Clinical Interests

Pediatric emergency medicine

Research Interests

Medical simulation; systems integration; patient safety; pediatric resuscitation

Academic Affiliation

Associate Professor, UC Department of Pediatrics

Clinical Divisions

Injury Prevention, Emergency Medicine

Research Divisions

Emergency Medicine

My Education

Medical School: University of Cincinnati, College of Medicine, Cincinnati, OH, 1997.

Residency: Children’s Hospital of The King’s Daughters, Norfolk, VA, 2000.

Chief Residency: Children’s Hospital of The King’s Daughters, Norfolk, VA, 2001.

Fellowship: Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 2004.

Certifications: Pediatrics, 2001, 2008; Pediatric Emergency Medicine, 2004, 2014.

My Publications

Development and Implementation of Augmented Reality Enhanced High-Fidelity Simulation for Recognition of Patient Decompensation. Zackoff, MW; Cruse, B; Sahay, RD; Fei, L; Saupe, J; Schwartz, J; Klein, M; Geis, GL; Tegtmeyer, K. Simulation in Healthcare. 2021; 16:221-230.

The Medical Resuscitation Committee: Interprofessional Program Development to Optimize Care for Critically Ill Medical Patients in an Academic Pediatric Emergency Department. Mittiga, MR; Frey, M; Kerrey, BT; Rinderknecht, AS; Eckerle, MD; Sobolewski, B; Johnson, LH; Oehler, JL; Bennett, BL; Chan, S; et al. Pediatric Emergency Care. 2021; 37:167-171.

Sustained Improvement in the Performance of Rapid Sequence Intubation Five Years after a Quality Improvement Initiative. Kerrey, BT; Mittiga, MR; Boyd, S; Frey, M; Geis, GL; Rinderknecht, AS; Ahaus, K; Varadarajan, KR; Luria, JW; Iyer, SB. Pediatric Quality and Safety. 2021; 6.

Identification of the Physiologically Difficult Airway in the Pediatric Emergency Department. Dean, PN; Hoehn, EF; Geis, GL; Frey, ME; Cabrera-Thurman, MK; Kerrey, BT; Zhang, Y; Stalets, EL; Zackoff, MW; Maxwell, AR; et al. Academic Emergency Medicine. 2020; 27:1241-1248.

Peri-Intubation Cardiac Arrest in the Pediatric Emergency Department: A Novel System of Care. Hoehn, EF; Dean, P; Lautz, AJ; Frey, M; Cabrera-Thurman, MK; Geis, GL; Stalets, E; Zackoff, M; Pham, T; Maxwell, A; et al. Pediatric Quality and Safety. 2020; 5.

Developing a Profile of Procedural Expertise: A Simulation Study of Tracheal Intubation Using 3-Dimensional Motion Capture. Kerrey, BT; Boyd, SD; Geis, GL; MacPherson, RP; Cooper, E; Kiefer, AW. Simulation in Healthcare. 2020; 15:251-258.

Resident Performance of the Rapid Cardiopulmonary Assessment in the Emergency Department. Sobolewski, B; Taylor, RG; Geis, GL; Kerrey, BT. Pediatric Emergency Care. 2020; 36:e304-e309.

A Video-Based, Case-Control Study of Factors Associated With Intraosseous Catheterization During Pediatric Resuscitation. Lee, SH; Frey, M; Kerrey, BT; Zhang, Y; Byczkowski, T; Geis, GL. Annals of Emergency Medicine. 2020; 75:755-761.

Enhancing CPR During Transition From Prehospital to Emergency Department: A QI Initiative. Hoehn, EF; Cabrera-Thurman, MK; Oehler, J; Vukovic, A; Frey, M; Helton, M; Geis, G; Kerrey, B. Pediatrics. 2020; 145.

The impact of debriefing modalities on nurse practitioner students' knowledge and leadership skills in managing fatal dysrhythmias: A pilot study. Alhaj Ali, A; Miller, E; Ballman, K; Bakas, T; Geis, G; Ying, J. Nurse Education in Practice. 2020; 42.