Dr. David Trefflich is from Los Angeles, CA. He received his undergraduate degree in Business Economics at UCLA and Medical Degree from UC Irvine. He completed residency in Internal Medicine at Wright State University/Wright-Patterson Air Force Base. He served as an officer in the United States Air Force in Ohio and Japan. His roles have included Medical Director, Infection Control Chair, Antimicrobial Steward, and lead of the Patient Support and Casualty Management team. He is board certified in Internal Medicine and has certificates in infection control and Advanced Trauma Life Support. He speaks Japanese and some Spanish. 

 He enjoys working with tools, playing music, serving in church, and spending time with family.