Meet the Team

For non-clinical questions and assistance, please email MHT at

Kristina Breton, LCSW

Kristina (she/her) graduated with her MSW degree from Simmons University with a focus on interpersonal violence and trauma.  She has worked in various clinical settings including research, school-based counseling, emergency room psychiatric social work, and outpatient community mental health. She has most recently worked as an inpatient medical social worker. Kristina has experience supporting grief, loss, chronic illness, and bereavement. Kristina focuses on using a strength-based approach utilizing aspects of cognitive behavioral therapy. Her goal is to create a supportive environment to foster resiliency as well as collaboratively work to develop skills to support in managing anxiety, depression, and navigating challenging life adjustments.

Mark Choa, MD

Mark (he/him) went to medical school at the University of Virginia and psychiatry residency at UC Davis. Since completing residency in 2012, he has worked in a variety of community mental health settings including UC Berkeley's student health center. Mark's psychiatric practice has focused on working with students and young adults, especially those experiencing psychosis and mood disorders. His work with students is rooted in an awareness of the experiences of marginalization that students of color and LGBTQ+ students face in their academic and personal lives. Mark is also trained in psychoanalytic therapy, and his work includes psychotherapy as well as prescribing medications. Mark identifies as multiracial and Asian American. Outside of work, he enjoys playing music, exploring nature, and being a parent to his two children and Siberian husky.

Isela Garcia White, LCSW

Isela (she/her) holds a MSW degree from the University of Southern California. She is a bilingual, first generation Mexican American cisgender woman, born and raised in the Bay Area. Isela has 19 years of social work experience providing culturally inclusive and social justice oriented clinical care in a wide variety of settings, including school-based and community mental health, partial hospitalization, and intensive outpatient settings. From 2018-2020, Isela served as a Professor of Social Work and a Field Education Consultant for UC Berkeley’s School of Social Welfare teaching emerging social work practitioners. Since 2014, Isela’s clinical work has focused on college mental health- serving as a clinician at Stanford University's Counseling and Psychological Services before joining the School of Medicine Mental Health Team. Isela’s clinical interests include culturally affirming counseling practices, social justice, racial trauma, college mental health, campus climate, first-gen student experiences, immigration issues and experiences, relationship concerns, grief and loss, life transitions, anxiety, mood concerns, resiliency, and self-compassion.

Allie Horevitz, LCSW (Team Lead)

Allie (she/her) graduated with her MSW from the University of California, Berkeley with a concentration in Community Mental Health. She was drawn to the field of social work based on her interest in post-traumatic growth and the human capacity for resilience. Allie's clinical training centered on the treatment of acute and chronic trauma.  Allie has worked in both community outpatient settings as well as primary care clinics providing crisis support and mental health services to largely underserved communities.

Mariko Sweetnam, LCSW

Phonetically: mm-air-ih-ko 

Mariko (she/her) holds a MSW and MPH degree from the University of California, Berkeley.  She has worked in high schools and hospitals and, prior to coming to Stanford, worked at an outpatient mental health clinic for seven years. Her work often focuses on grief, chronic illness, the experience of being “othered,” and the power of rewriting our own life narratives with self-compassion.

Schedule an Appointment

To make an appointment, please contact CAPS Front Desk at 650-723-3785 and specify you are a School of Medicine student seeking an appointment with MHT.

Sessions with members of MHT remain cost-free for actively enrolled MD, MSPA, SoM BioSci MS, and SoM BioSci PhD students in the School of Medicine regardless of insurance coverage. 

Students must be in the state of California when engaging in MHT telehealth treatment services. If you are located outside of California, MHT can provide you with telehealth Care Management services to help you connect with resources in your local area and temporarily support your needs while you are seeking local care.