Shaun/Sienna Bries is a Licensed Independent Clinical Social Worker (LICSW) and EMDRIA Certified Clinician practicing in Massachusetts, providing individual, family, and group therapy for adolescents and adults. They are formally trained in Eye Movement Desensitization and  Reprocessing Therapy (EMDR), Adolescent Community Reinforcement Approach (A-CRA), Trauma-Focused Cognitive Behavioral Therapy (TF-CBT), the Attachment, Regulation, and Competency (ARC) Model, Psychological First Aid (PFA), Post-Traumatic Stress Management (PTSM), and Sensory Motor Arousal and Regulation Treatment (SMART).

Shaun/Sienna is a two-spirited individual who earned their Master of Social Work in Indigenous Trauma and Resiliency from the Factor-Inwentash Faculty of Social Work at the University of Toronto.

In addition to their clinical work, they are an independent researcher trained in Participatory Action Research (PAR), with a focus on joining or developing projects aimed at decolonizing trauma work.

Outside of work, Shaun/Sienna enjoys video gaming, reading, writing poetry, hiking, attending live musical performances—including symphonies and musicals— taking silks classes, boxing, and traveling. They share their life with their husband and two dogs, Paxton and Preston.