His work is centered around preventing, detecting, and controlling the spread of multidrug-resistant organisms (MDROs) with a particular focus on carbapenem-resistant Enterobacteriaceae (CRE). He serves as Medical Director for the Drug-Resistant Organism Prevention and Coordinated Regional Epidemiology (DROP-CRE) Network with the Oregon Health Authority (OHA) and is involved in multicenter research collaborations. Most notable is his role as Principal Investigator of a CDC-funded project to implement a novel electronic system to track patients with MDROs such as CRE as they are transferred from VA facility-to-facility across the country. Dr. Pfeiffer is also a co-investigator for the VA HSR&D-funded CREATE projects, a VA CSP study of treatment for recurrent Clostridium Difficile, and a NIH-funded study of clinician decision making.
Dr. Pfeiffer enjoys running and hiking on trails near his home and throughout the Pacific Northwest.