Stacia Koster, MD

Psychiatry Fellow


Stacia Koster is a psychiatry resident in her final year of training at Montefiore Medical Center. Her clinical interests include working with individuals, couples, and families navigating identity, relationship challenges, and life transitions. She is particularly drawn to working with emerging adults, those exploring questions of sexuality and identity, and those seeking meaning, connection, and deeper understanding in their relational and family lives.

She earned her undergraduate degree in International Studies from Johns Hopkins University, with a focus in Journalism and French Cultural Studies. After graduation, she received a Fulbright grant to teach English in India, then worked as an administrator with Doctors Without Borders in New York and South Sudan. She completed her medical degree at New York Medical College, where she helped lead an initiative to create resources for families of children and adolescents navigating mental health systems of care in New York City and Westchester.

Originally from Colorado, she has lived and worked in many parts of the world, including Paris, Kolkata, and Juba. Her cross-cultural experiences continue to shape her clinical perspective and her interest in how people make meaning of their lives across changing roles, environments, and relationships. A longtime lover of poetry and storytelling, she brings a deep appreciation for language, narrative, and emotional nuance to her psychodynamic work.