Dr. Ratzlaff grew up in Hillsboro, Kansas. He completed his BS in Medical Molecular Biology at Oral Roberts University and Doctor of Osteopathic Medicine at Arkansas College of Osteopathic Medicine. He then completed his Internal Medicine Residency at UAMS Northwest in 2025, where he was Chief Resident from 2024-2025. Dr. Ratzlaff’s has a number of clinical interests. This includes emerging pathogens, antimicrobial-resistant organisms, and infections in immunocompromised hosts, including invasive fungal infections.
Outside of medicine, Dr. Ratzalff enjoys staying active. You might find him taking Chip, his bernedoodle, on long walks in Forest Park. He also likes trying new St. Louis restaurants with his wife.
Why did you choose WashU for your ID fellowship?
“I chose WashU for fellowship training because of its high clinical volume and complex patient population, which draws referrals from multiple surrounding states. I was also drawn to the strength of the program and department leadership, as well as the opportunity to learn from faculty who are leaders in their fields.”