Tim Stahl, Ph.D.
Staff Psychologist

I graduated magna cum laude from Fordham University, where I majored in Psychology and minored in Spanish Language and Literature. I then received my doctorate from St. John’s University and completed my predoctoral clinical internship at the New York-Presbyterian Morgan Stanley Children’s Hospital, part of Columbia University Irving Medical Center. I work with individuals across the lifespan, from young children to older adults.  I have received intensive training and supervision in Cognitive Behavioral (CBT), Trauma-focused CBT, Alternatives for Families CBT, Psychodynamic, Dialectical Behavior (DBT), Interpersonal (IPT), and Family Systems therapies in both English and Spanish languages. Throughout my training and clinical work, I have been dedicated to individually tailoring evidence-based, trauma-informed, and culturally humble therapeutic interventions to best suit the needs of individuals of all ages across different cultures, races, genders, sexual orientations, and medical history backgrounds.

Upon completion of my internship, I worked as a staff psychologist at New York-Presbyterian Morgan Stanley Children’s Hospital (CHONY) and was an Instructor in Psychiatry at Columbia University Irving Medical Center.  I facilitated the creation of the Diagnostic Evaluation and Stabilization Center (DESC) where I provided diagnostic clarity, short-term therapy, and connection to ongoing long-term care in an outpatient setting for children and adolescents. During that time, I also served as a staff psychologist in the Child and Adolescent Outpatient clinic at CHONY providing long-term individual and family therapy. Prior to Behavioral Wellness NYC, I was an Assistant Professor at the Icahn School of Medicine at Mount Sinai.  I provided medium-term individual psychotherapy at their Institute for Advanced Medicine, which provides patients with an integrative approach to medical and psychiatric care. I have supervised clinical psychology interns and psychiatry resident physicians in their provision of CBT to their patients, while also giving lectures on evidence-based interventions, identity affirming therapy approaches, and human development across the lifespan.

I have served as an adjunct reviewer for several peer-reviewed publications, and a consultant for state institutions and schools on trauma informed and identity affirming policies and procedures. I am an active member of the Association for Behavioral and Cognitive Therapies (ABCT) and was a member of the inaugural cohort of their CHANGE Leaders program, which fosters leadership skills in early career psychologists to enact meaningful policy and programming changes through a lens of equity and stewardship.