Our success is intimately linked to the accomplishments of each and every member of our department.
Each month, four members are nominated and featured to celebrate their commitment to patient care, education, and research.
Current Featured Anesthesiology Department Members
Catherine Gould, PA-C
Physician Assistant
Parita Jani, MD
ACTA Fellow
Sherry McKinnon
Manager of Clinical Research, Regulatory and Compliance
Andrew Schaffer, MD
Resident Physician
Featured Anesthesiology Department Members Archive
Ryan Guffey, MD
Fellowship Director for Regional Anesthesia and Acute Pain; Associate Professor, Anesthesiology
Department of Anesthesiology Featured Member: February 2020
Ryan was born near Detroit in Michigan but spent time growing up in both the Detroit area and St. Peters, MO. He went to medical school at Wayne State University where he met his wife, Amy. Together they attended residency at Emory, and Ryan went on to study Regional Anesthesia and Acute Pain at the University of Pittsburgh. He has been an attending at Washington University since. Ryan is the Regional and Acute Pain Fellowship Director and his research focuses on pain after breast cancer surgery and enhanced recovery. He enjoys travel, hiking, architecture, cooking, and smoking BBQ.
Gaurang Gupte, MD
Resident Physician, Class of 2026
Department of Anesthesiology Featured Member: June 2025
Dr. Gupte is a rising CA-3 anesthesiology resident from Fort Worth, Texas. He earned dual degrees in biology and electrical engineering from the University of Texas at Arlington and completed his medical education at Washington University School of Medicine in St. Louis. Drawn to the program’s exceptional training and robust clinical opportunities, he chose to stay at WashU for his residency.
Gaurang leverages his background to explore the neural mechanisms of anesthesia-induced unconsciousness through research. His clinical interests include trauma anesthesia, prehospital medicine, and critical care.
Outside of the hospital, Gaurang enjoys running, hiking, and motorsports. He has a strong interest in rural medicine and aspires to one day have a hobby farm. Inspired by the late Irish anesthesiologist Dr. John Hinds, he hopes to use his passion for prehospital care to serve his community and support high-risk international motorsport events.
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!
Mark Hanak, MD
Resident Physician, Class of 2023
Department of Anesthesiology Featured Member: February 2021
Mark is one of the current CA-1 residents in the Department of Anesthesiology. Originally from the Washington D.C. suburbs, he attended the University of Virginia for both undergrad and medical school. Following graduation he moved to St. Louis with his girlfriend, Alison, who is an OBGYN resident here at WashU.
When choosing a residency, he was drawn to the department’s diverse faculty and clinical opportunities. “I wanted to be able to learn from not just the national but also international leaders in the field. There are many ways to approach anesthetic management and getting to train here broadens one’s perspective.”
Outside of the hospital, Mark enjoys running, snowboarding, cooking, attending concerts (pre-COVID), and spending time with Alison and his 1 year old Pyrenees/Shepherd mix, Osley. They recently moved into a house and Mark is excited to start up a home garden this Spring.