Region 3
RTAC Chair: Dr. Kat Kohler
Vice-Chair: Dr. Lindsay Jaeger
Secretary: Julie Mosher
RTAC Coordinator:
Steve Elmgren
Counties
Clayton, Cobb, DeKalb, Douglas, Fulton, Gwinnett, Newton, and Rockdale.
Region 3 Meetings
Region 3 Quarterly Meeting Notes and Attendance – 6/10/2026
R3 RTAC Meeting Minutes 6.10.26 RTAC Region 3 Quarterly Meeting Attendance 6.10.26
Region 3 Minutes
Region 3 Quarterly Meeting Notes and Attendance – 6/10/2026
R3 RTAC Meeting Minutes 6.10.26 RTAC Region 3 Quarterly Meeting Attendance 6.10.26
Region 3 Recent Posts
Improving Emergency Care in Rural Georgia
Emory Medicine Magazine, Summer 2021. A feature on the Emory Rural Tele-EMS Network, which Dr. Carr directs.
One Team: Identifying Prehospital Provider Needs for Burn Patient Outreach and Education
Journal of Burn Care & Research, November 2025. Co-authored by Stephen Elmgren, RTAC 3 Coordinator.
Characteristics of Firearm Injury by Injury Intent: The Need for Tailored Interventions
Journal of Trauma and Acute Care Surgery, October 2024. Dr. Kohler participated in this study as a site investigator.
Region 3 Injury Prevention and Education
Region 3 Quarterly Meeting Notes and Attendance – 12/4/2025
R3 RTAC Meeting Minutes 12.04.25Download RTAC Region 3 Quarterly Meeting Attendance 12.04.25Download
Region 3 presentations
Region 3 Quarterly Meeting Notes and Attendance – 12/4/2025
R3 RTAC Meeting Minutes 12.04.25Download RTAC Region 3 Quarterly Meeting Attendance 12.04.25Download
Who’s Who
Dr. Katherine “Kat” Kohler - Chair, Region 3 Regional Trauma Advisory Committee
Affiliations
- Grady Memorial Hospital
- Emory University
Education & Training
- Medical School: Medical College of Georgia School of Medicine
- Residency: Wake Forest University School of Medicine – General Surgery/Trauma Surgery
- Fellowship: Grady Memorial Hospital
Board Certification
- American Board of Surgery
Areas of Expertise
- Trauma Surgery
- Critical Care Medicine
- Complex Trauma Care
- Traumatic Brain Injury
- Multiple Traumatic Injuries
- Trauma Recovery and Rehabilitation
Dr. Lindsay Jaeger - Vice-Chair, Region 3 Regional Trauma Advisory Committee

Affiliations
- Children’s Healthcare of Atlanta
- Emory University School of Medicine
- Assistant Professor, Emory University School of Medicine
- System Transport Medical Director
- EMS Medical Director, Children’s Healthcare of Atlanta
Education & Training
- Undergraduate: Tulane University
- Medical School: Tulane University School of Medicine
- Pediatric Residency: Ann & Robert H. Lurie Children’s Hospital of Chicago / Northwestern University Feinberg School of Medicine
- Pediatric Emergency Medicine Fellowship: Washington University in St. Louis / St. Louis Children’s Hospital
- Emergency Medicine Ultrasound Fellowship: Washington University in St. Louis
- EMS Fellowship: University of Chicago Medicine
Board Certification
- Emergency Medicine
Areas of Expertise
- Pediatric Emergency Medicine
- Emergency Medical Services
- Pediatric Trauma
- Prehospital Pediatric Care
- Transport Medicine
- Point-of-Care Ultrasound
- Pediatric Resuscitation and Cardiac Arrest
- EMS Education, Quality Improvement and System Development
Steve Elmgren - Coordinator, Region 3 Regional Trauma Advisory Committee

Affiliations & Professional Roles
- Region 3 Regional Trauma Advisory Committee Coordinator
- EMS Liaison
- Paramedic
- Firefighter and Fire Service Officer
- Rescue Technician
- Instructor and Special Operations Training Representative
- Burn Educator
Education & Training
- Master’s Degree – Crisis/Emergency/Disaster Management
- Master of Business Administration – Health/Health Care Administration/Management
- Bachelor of Science – Fire Services Administration
- Associate Degree – Fire Science/Fire-fighting
- Texas A&M Engineering Extension Service training
- Paramedic / EMT-Paramedic and Rescue Training
Areas of Expertise
- Emergency Medical Services
- Fire and Rescue Operations
- Trauma Systems and Regional Coordination
- Emergency and Disaster Management
- Healthcare Administration
- Burn Education
- Prehospital Education and Training
- Interdisciplinary and Patient-Focused Collaboration