People
Erin Hogg
Executive Secretary
Department of Anesthesiology Featured Member: July 2025
Erin is an executive secretary who supports clinical operations and the general and trauma divisions. She came to WashU Medicine in January of 2023 after working in K-12 education for 16 years as a high school English teacher and school administrator. She is really enjoying working with adults after spending so many years with teenagers.
Erin and her husband share four wonderful kids in their blended family. She loves to travel (especially to mountains and beaches), read, and relax as often as possible.
David Hollenbeck, MD
Medical School: University of Kansas, Wichita
Katie Holzer, PhD, LCSW
Assistant Professor, Anesthesiology
Department of Anesthesiology Featured Member: June 2025
Katie Holzer, PhD, LCSW, is an assistant professor in the Department of Anesthesiology and the administrative director of the Center for Perioperative Mental Health. She holds a bachelor’s degree in psychology from Illinois Wesleyan University, a Master of Social Work from the Brown School at Washington University in St. Louis, and a PhD from Saint Louis University’s School of Public Health and Social Justice.
Before joining the department, Dr. Holzer worked as a clinical social worker in both inpatient and outpatient psychiatry at Barnes-Jewish Hospital. Her research focuses on improving mental health outcomes for older adults and enhancing patient engagement in clinical research.
A St. Louis native, Dr. Holzer enjoys exploring the city with her husband, Deven, and their two energetic sons, Bobby (6) and Charlie (3). In her free time, she likes reading, traveling, playing tennis, and volunteering with the Alzheimer’s Association.
Erin Hooper, CPNP-PC
Nurse Practitioner
Department of Anesthesiology Featured Member: December 2023
Erin Hooper is a board-certified pediatric Nurse Practitioner who recently joined the Pediatric Pain Management team in the Department of Anesthesiology. She helps manage patients with acute pain on the inpatient Pediatric Pain service as well as with Chronic Pain conditions in the outpatient setting.
Prior to working with the Department of Anesthesiology department, Erin worked in the neonatal intensive care unit, and also coordinated care for children with medical complexity and special health care needs. Erin enjoys translating research into practice through education, and being a resource for patients and families.
Outside of work, Erin enjoys spending time with her husband Robert, and their three children Violet, Layla, and Brett, and keeping up with their busy schedules, sports events, and activities.




