.row{margin-bottom:15px}
![](https://www.bmc.org/sites/default/files/Patient_Care/Specialty_Care/Addiction-Medicine/OBAT/Colleen-Labelle.png)

[**Colleen LaBelle, MSN, RN-BC, CARN**](/about-us/directory/doctor/colleen-t-labelle-msn-rn-bc-carn)  
Director, Boston Medical Center OBAT



![](https://www.bmc.org/sites/default/files/Patient_Care/Specialty_Care/Addiction-Medicine/OBAT/Lexie-Bergeron.jpg)

**Lexie Bergeron, MPH, LCSW**  
Program Director, OBAT



![](https://www.bmc.org/sites/default/files/Patient_Care/Specialty_Care/Addiction-Medicine/OBAT/Alicia-Ventura.jpg)

**Alicia Ventura, MPH**  
Director, Research and Special Projects, OBAT



![](https://www.bmc.org/sites/default/files/Patient_Care/Specialty_Care/Addiction-Medicine/OBAT/Joanna-DAfflitti.jpg)

**Joanna D’Afflitti, MD, MPH**  
Medical Director, BMC OBAT



![](https://www.bmc.org/sites/default/files/Patient_Care/Specialty_Care/Addiction-Medicine/OBAT/Kate-Hannon.jpg)

**Karen Hannon, BSN, RN, LADAC II, CARN**  
Nurse Manager and Corrections Liaison



![](https://www.bmc.org/sites/default/files/Patient_Care/Specialty_Care/Addiction-Medicine/OBAT/Isela-Wellington.jpg)

**Isela Wellington, BSN, RN**  
Nurse Supervisor and Preceptor