![Jenna Nikolaides](/sites/default/files/styles/image_600w/public/2024-05/Nikolaides_Jenna.jpg?itok=zrGeotPB)
Jenna Nikolaides, MD
Director Substance Use Intervention Team
Director of Medical Toxicology
Assistant Professor in Emergency Medicine, Medical Toxicology and Addiction Medicine
![Nick Chien](/sites/default/files/styles/image_600w/public/2024-05/Chien_Nicholas-1.jpg?itok=fd01tbqH)
Nicholas Chien, MD
Addiction Medicine Physician
![Toni Nemanich](/sites/default/files/styles/image_600w/public/2024-05/Nemanich_Antonia-1.jpg?itok=AYy5IssB)
Antonia Nemanich, MD
Addiction Medicine Physician
![Chicago skyline](/sites/default/files/styles/image_600w/public/2024-05/CTEI_skyline_header_1920x720.jpg?itok=oM_36IXH)
Brian Bush, MD
Addiction Medicine Physician
![Jon Schulz](/sites/default/files/styles/image_600w/public/2024-05/Schulz_Jonathan-1.jpg?itok=amDUS8Fq)
Jon Schulz, PA-C
Physician Assistant
![Chicago skyline](/sites/default/files/styles/image_600w/public/2024-05/CTEI_skyline_header_1920x720.jpg?itok=oM_36IXH)
Emily (Cass) Casselbury, FNP-BC
Nurse Practitioner
![AJ Fairgrieve](/sites/default/files/styles/image_600w/public/2024-05/CredenFairgrieve_Amanda.jpg?itok=fdVjv6Mi)
Amanda (AJ) Creden Fairgrieve, LCSW
Licensed Clinical Social Worker
![Emily McKernan](/sites/default/files/styles/image_600w/public/2024-05/McKernan_Emily%20.jpg?itok=xy8MCw4_)
Emily McKernan, LCSW
Licensed Clinical Social Worker
![Fatima Castro](/sites/default/files/styles/image_600w/public/2024-05/Diabate_Fatima.jpg?itok=_u5D8xG8)
Fatima Castro, LCSW
Program Manager - Substance Use Intervention Team
Licensed Clinical Social Worker