Medical Directors



John V. Gallagher III, M.D., F.A.C.E.P., F.A.A.E.M

Dr. John Gallagher CV

Dr. Gallagher is a respected physician who has specialized in trauma and emergency care for over 30 years. He has served as medical director for numerous Phoenix Fire Dept. programs, including: the medical services division, EMT training programs, Urban Search and Rescue teams, and St. Luke’s Medical Center ALS Base Station.

Dr. Gallagher’s teaching credentials include: St. Luke’s paramedic training program, Phoenix Fire paramedic training program, American College of Surgeons ATLS instructor, in addition to the American Heart associations ACLS instructor, pediatric ALS instructor, and experienced provider instructor.

He is currently certified in adv. cardiac life support, pediatric adv. life support, and technical rescue training.

Currently Dr. Gallagher is on staff at both St. Luke’s and Banner Good Samaritan Medical Centers; both facilities are in Arizona.

New Mexico, Nevada, California, Utah, Washington

Walter N. Simmons, MD, MPH, FACEP

Dr. Simmons is a board certified and residency trained emergency medicine physician and well established Emergency Medical Services (EMS) Medical Director and Consultant.

Dr. Simmons possesses excellent clinical and superb leadership skills which he has applied to his relationships with diversified EMS agencies for the past 15 years. He has leveraged his passion for working with pre-hospital providers into a successful focus of his practice, and his areas of expertise encompass the operational and clinical functions of ground and air ambulance services; including clinical education, skills training, and quality metrics.

He has proven experience in organizational transformation, project execution, strategic planning, EMS practice management, information management and complex care management.


Idaho, California, Wyoming, Utah

Curtis Sandy, MD, FACEP Dr.

Curtis Sandy CV

Dr. Curtis Sandy is an Emergency Medicine and EMS physician at Portneuf Medical Center in Pocatello, Idaho and has over 26 years of EMS experience as a paramedic, flight physician and EMS medical director. His credential include a degree in EMS Management from The George Washington University and is board-certified in EMS.

A former wildland firefighter, Dr. Sandy has a focus on operational EMS and wildland fire medical operations. He is the Medical Director for the Idaho BLM and has served as the medical unit supervising physician on many large fires in Idaho. He is the EMS medical director for several EMS agencies in southeast Idaho and is associate medical director for Lifeflight Network. Dr. Sandy is a reserve deputy and tactical physician for the Bannock County Sheriff’s Office and Southeast Idaho Special Tactics and Response Team. He has taught medical care in austere environments for several years.

Dr. Sandy is the current chair of the Idaho EMS Physician Commission and active in statewide committees including participating in the Time Sensitive Emergencies initiative.



David Lehrfeld, MD


Dr. Lehrfeld is an EMS Medical Director with an interest in regionalized systems of care, and using data to drive practice. He started his carrier in medicine as an EMT in 1990 and has worked as an EMT, Paramedic, and Physician both in military and civilian world. He is currently the Medical Director for EMS and Trauma for the State of Oregon, and works in critical access hospitals on the weekends.