![Mary K. Amann](https://neurosurgery.wustl.edu/wp-content/uploads/2021/12/DSCF1683-Edit-280x386.jpg)
Mary K. Amann
Executive Director, Department of Neurosurgery
- Phone: 314-362-8137
- Email: amannm@nospam.wustl.edu
![Toni Kozemski](https://neurosurgery.wustl.edu/wp-content/uploads/2021/12/DSCF0303-Edit-280x386.jpg)
Toni Kozemski
Director of Finance and Administration
- Phone: 314-362-8125
- Email: tonikozemski@nospam.wustl.edu
![Liz Mueller, MHA](https://neurosurgery.wustl.edu/wp-content/uploads/2023/07/Liz-Mueller-MHA-280x386.jpg)
Liz Mueller, MHA
Patient Safety and Quality Coordinator
- Phone: 314-273-0243
- Email: m.elizabeth@nospam.wustl.edu
![Warren Smith](https://neurosurgery.wustl.edu/wp-content/uploads/2023/11/Warren-Smith-280x386.jpg)
Warren Smith
Division Administrator for Pediatric Neurosurgery
- Phone: 314-747-6886
- Email: w.smith@nospam.wustl.edu