People
Michael Hakim, MD
ACTA Fellow (2020)
Medical School: University of Oklahoma
Residency: WashU Medicine
Alexandra Hallagan, MD
Emergency Medicine – Anesthesiology Critical Care Fellow (2027)
Medical School: Ohio State University College of Medicine
Residency: Creighton University of Phoenix — Emergency Medicine
Allan Hamilton, MD
Dual CCM (2021)/ACTA Fellow (2022)
Medical School: University of Tennessee College of Medicine
Residency: University of Texas Southwestern
Teresa Hammann, MSN, APRN, AGACNP-BC
Nurse Practitioner
Department of Anesthesiology APP of the Quarter: April 2021
Teresa was born and raised in St. Louis, MO and joined the department in 2016 after graduating from the ACNP program at Saint Louis University. Prior to becoming a nurse practitioner, she was a bedside nurse in the emergency department and cardiothoracic ICU at Barnes-Jewish Hospital. Outside of work, Teresa enjoys spending time with her husband Brett and their boxer, Shirley. She also enjoys travelling, cooking, SCUBA diving, reading, and spending time outdoors running, hiking, kayaking, camping, and gardening
"I feel blessed to have been chosen to be part of the SICU APP group as my first job out of school. I enjoy the fast paced environment and have an amazing group of co-workers that have helped me learn and grow in my profession!"
Teresa was named the Q1 2021 APP of the Quarter! She is always attentive to the staff and patient needs and is a great resource to have on our care team! Congratulations, Teresa!
Jason Han, MD
Medical School: Southern Illinois University
Jasper Han, MD
Medical School: The University of Texas Southwestern Medical School
Mark Hanak, MD
Regional Anesthesiology and Acute Pain Fellow (2023-24)
Medical School: University of Virginia School of Medicine
Residency: WashU Medicine — Anesthesiology
