People
Sarah Perez, CRNA
Certified Registered Nurse Anesthetist; Assistant Professor, Anesthesiology; Scheduling Coordinator for the Nurse Anesthesia Program
Department of Anesthesiology Featured Member: August 2024
Sarah began her educational journey at WashU earning her bachelor's degree in biology. While at WashU, she played for the women’s soccer team receiving Offensive Player of the Year in 2001. She then received her master's degree from DePaul University, MSN in anesthesia from Barnes-Jewish College, followed by a DNP from Chatham University. Sarah has been with the Department of Anesthesiology for 16 years serving as a CRNA, Assistant Professor, and Scheduling Coordinator for the Nurse Anesthesia Program.
On a personal note, Sarah was born and raised in St. Louis in a large family with five brothers. She is a very active mother of three children, ages 15 (Maddie), 13 (Gabbie), and 5 (William). In her free time, you'll find her at dance competitions, soccer/basketball games, coaching youth soccer, boating at the lake, or driving carpools. Her soccer career was inspired by her dad, who at 70 still coaches youth soccer with her. Fun fact: Sarah played tennis in high school and won the Missouri State Championship all 4 years including the doubles championship for which she was recently inducted into the Missouri Sports Hall of Fame!
Abigail Petersen, MD
Uniformed Services University of the Health Sciences F. Edward Hebert School of Medicine
Jason Pierce, MD
Pediatric Anesthesiology Fellow (2023)
Medical School: Medical University of South Carolina College of Medicine
Residency: Virginia Mason Medical Center
Ryan Pieterick, MD
University of Colorado School of Medicine
Ryan Pieterick, MD
Resident Physician, Class of 2023
Department of Anesthesiology Featured Member: April 2021
Ryan Pieterick, M.D. is a current CA-2 anesthesiology resident. Ryan is originally from Arvada, Colorado, and attended Colorado State University in Fort Collins, earning B.S. and M.S. degrees in Biomedical Sciences. He worked for an environmental engineering firm prior to attending the University of Colorado School of Medicine. During medical school, he was accepted to the selective South Africa Emergency Medicine Foundation and worked in a high volume, underserved trauma center in Khayalitsha, South Africa, for several months. After graduation, he completed an internship in Internal Medicine at Legacy Health in Portland, Oregon.
Ryan and his wife, Maggie, are avid outdoor enthusiasts and enjoy backpacking, skiing, surfing, hiking, camping, rock climbing, and traveling any chance they get. In addition, Ryan is a guitar player and singer/songwriter, and writes music in his free time. He was drawn to WashU by the diverse population, high volume of complex cases, and renowned critical care and trauma experience. In addition, his wife, an architect, is originally from St. Louis.
Ryan currently lives in the Tower Grove neighborhood of St. Louis, where he enjoys reading, spending time with his wife and friends, and playing fetch with his dog, Wooly. After graduation, he plans to join a private practice as a general clinical anesthesiologist.
Petr Pikhut, MD
Pain Medicine Fellow (2024-25)
Medical School: Russian National Research Medical University
Residency: SUNY Downstate Health Sciences University— Anesthesiology



