Liz Eustis, Ph.D.
Licensed Clinical Psychologist
Pronouns: She/Her/Hers

Licensed in MA and FL.
Clinical Expertise
Dr. Eustis is a clinical psychologist with extensive experience working with adults with anxiety disorders (e.g., panic disorder, generalized anxiety disorder, social anxiety disorder, specific phobia), obsessive-compulsive disorder, depression, stress management, and life transitions. She specializes in providing cognitive behavioral therapy (CBT), including CBT that incorporates mindfulness and acceptance-based techniques, and exposure and response prevention. Dr. Eustis is committed to providing high quality evidence-based care that is culturally responsive and tailored to each individual client. She brings warmth, compassion, and humility to each session and strives to create an authentic and non-judgmental space. Dr. Eustis truly believes that each client is the expert on themselves, and she works with clients collaboratively to help them achieve their treatment goals and to make meaningful changes in their lives.
In addition to working with clients individually, Dr. Eustis is an exposure therapist for the Intensive CBT Program for Anxiety and OCD, a 2-week accelerated treatment program that provides concentrated individual CBT and exposure therapy to adults and adolescents with OCD, social anxiety, panic disorder, agoraphobia, health anxiety, and specific phobias.
Diversity, Equity, & Inclusion
Dr. Eustis is committed to providing high quality care that is affirming and culturally responsive for all clients. This includes recognizing and valuing clients’ unique backgrounds, identities, and contexts. For example, Dr. Eustis makes space to discuss each client’s culture and intersecting identities, and what is most important to them. She also considers the impact that our environments and experiences related to identities can have on our mental health, including experiences of structural and interpersonal racism and inequity. Dr. Eustis is committed to engaging in the ongoing personal and professional work required to practice cultural responsiveness and cultural humility.
Training
Prior to joining CPG, Dr. Eustis was a research assistant professor at Boston University and a psychologist at the world-renowned Center for Anxiety and Related Disorders (CARD), where she provided specialty CBT to adult clients.
Dr. Eustis completed her PhD in clinical psychology at the University of Massachusetts Boston under the mentorship of Dr. Lizabeth Roemer, an internationally recognized expert in anxiety disorders, and co-developer with Dr. Susan Orsillo, of an acceptance-based behavioral therapy for generalized anxiety disorder. She completed her predoctoral internship at the Warren Alpert Medical School of Brown University where she completed specialty training in exposure treatment for anxiety and OCD in an intensive outpatient program, perinatal mental health in a partial hospital program, and integrated primary care. Dr. Eustis completed her postdoctoral fellowship at the Center for Anxiety and Related Disorders at Boston University.
Research and Supervision
Dr. Eustis uses her research background to help inform her clinical practice and to stay up to date on new advances in the field. She has conducted and contributed to numerous studies that have tested the efficacy of CBT interventions when they are delivered in person, via brief single-session interventions, and when they are delivered via digital programs. Her research seeks to better understand how CBT works through identifying mechanisms of change, and to develop and test novel ways to use technology to increase access to evidence-based care. She has published over 20 peer-reviewed journal articles, 7 book chapters, and has authored over 50 presentations at national and international conferences on these topics.
In her previous role as a research assistant professor at Boston University, Dr. Eustis provided clinical supervision to doctoral students at the Center for Anxiety and Related Disorders and was the primary research mentor for doctoral students in the Clinical Psychology PhD program. She truly enjoys and values being involved in training and mentoring. Previously, she was also the Director of the Unified Protocol Institute at Boston University, which provides training for therapists in the Unified Protocol, an evidence-based transdiagnostic CBT. In this role she oversaw all national and international training in the Unified Protocol.
In addition, Dr. Eustis has also served as a subject matter expert on anxiety disorders, depression, and CBT for technology companies that are building digital mental health interventions to ensure their products are safe and effective.
She is currently an adjunct research assistant professor at Boston University.
Education
- University of Colorado Boulder, BA in Psychology
- University of Massachusetts Boston, MA in Clinical Psychology
- University of Massachusetts Boston, PhD in Clinical Psychology
- The Warren Alpert Medical School of Brown University, Predoctoral Internship
- Center for Anxiety and Related Disorders (CARD) at Boston University, Postdoctoral Fellowship
Areas of Expertise
Anxiety disorders, panic disorder, generalized anxiety disorder, social anxiety disorder, specific phobia, OCD, depression, perinatal mental health, college student mental health, Cognitive Behavioral Therapy (CBT), Acceptance-based Behavioral Therapies (ABBTs), Acceptance and Commitment Therapy (ACT), mindfulness, the Unified Protocol, Exposure and Response Prevention (ERP), Dialectical Behavior Therapy (DBT) skills
Hobbies
Dr. Eustis enjoys getting outside and enjoying nature, spending time with her family and friends, and a good cup of earl grey tea.