Dr. Jeffrey is a child and adolescent psychiatrist at the Jane and Terry Semel Institute for Neuroscience and Human Behavior at UCLA. She is the Associate Director of Ambulatory Services within the UCLA Department of Psychiatry and serves as the Associate Director of the Division of Population Behavioral Health. She is the Lead Psychiatrist at UCLA Behavioral Health Associates and the Director of the UCLA/Los Angeles Department of Mental Health Tele Hub Program, where she oversees the delivery of pediatric integrated behavioral health services within the Antelope Valley and through STAND, a program of the UCLA Depression Grand Challenge, at East Los Angeles College.

Dr. Jeffrey is an advocate for improved access to mental health services. Her research and clinical interests include systems of health care delivery and psychedelic assisted psychotherapies. She has completed training in MDMA-assisted psychotherapy with MAPS (October 2022) and the Ketamine Medical Provider Training from the Integrative Psychiatry Institute (December 2021). She also received the Psychedelic-Assisted Psychotherapy Certificate from Integrative Psychiatry Institute (December 2022). She has published articles in the fields of health services delivery and mental health, spanning topics including integrated behavioral healthcare, measurement-based care practices, professional quality of life in Head Start communities, and quality of life in mental illness.

Dr. Jeffrey is a Distinguished Fellow of both the American Psychiatric Association and the American Academy of Child and Adolescent Psychiatry. She teaches within the UCLA Stress, Trauma, and Resilience (STAR) Clinic and serves on the Psychoharmacologic Drug Advisory Committee for the FDA.