We are pleased to announce and introduce our 2025-26 chief residents: Drs. Nathan Achilly, Brandon DeClouette, and Arianna Montes de Oca.
Chief Residents Announced for 2025-26

Department of
We are pleased to announce and introduce our 2025-26 chief residents: Drs. Nathan Achilly, Brandon DeClouette, and Arianna Montes de Oca.
On March 21, 2025, the Department of Anesthesiology welcomed 23 new residents. This outstanding group of physicians comes from medical schools across 12 states, including WashU Medicine, and three countries.
We are proud to recognize the outstanding contributions of several department faculty members who are currently serving or have recently been appointed as examiners for the American Board of Anesthesiology (ABA) APPLIED Examination.
Dr. Dolores Njoku has been re-elected to a three-year term as a Faculty-at-Large Representative on the Faculty Practice Plan’s (FPP) Board of Directors.
Jamie Brown-Shpigel, MD, and Mohammed Helwani, MD, MSPH, have been appointed as Assistant Residency Program Directors in the Department of Anesthesiology. In addition, Dr. Brown-Shpigel has also been appointed Trauma Fellowship Program Director.
Goldfarb School of Nursing celebrated its 2024 commencement, highlighting nursing achievements and honoring Nurse Anesthesia graduates.
The Barnes-Jewish Hospital Medical Staff Association has selected Associate Professor of Anesthesiology and Residency Program Director, Allison Mitchell, MD, as a recipient of the Early Career Award.
Sydney Nykiel-Bailey, DO, and Ashley Weinhold, MD, have been honored with induction into the Academy of Educators at WashU Medicine. Recognized for their contributions to medical education and mentorship, they continue to shape the future of anesthesiology training and curriculum development.
The Department of Anesthesiology celebrates its 2024 residency and fellowship graduates.
At the 2024 Residency Graduation Ceremony, several residents were honored with special awards in recognition of their exceptional contributions. The graduating residents also selected faculty members to receive the annual Outstanding Teacher Awards.