WHO WE ARE
Groundbreaking evidence-based therapy
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- We are a team where passion meets expertise.
- We are clinically savvy in our work and still strive to learn.
- We are 100% specialized in cognitive behavior therapy.
- We take our job seriously and still bring humor and silliness to it.
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We believe that anxiety feels overwhelming, but it doesn’t define who you are or what you’re capable of.

Caitlyn Lambert-Holmes, M.A.
Therapist | Registered Psychological Associate
Experience: Caitlyn brings her academic work and previous experience to the EBBTC. Caitlyn has experience as an ABA therapist with young children with Autism. She has also previously worked in community mental health with young children and their families providing in-home services.
Clinical Interests: Dr. Lambert-Holmes main’s clinical interest is working with children and their families to expand and enjoy their lives. Prior to her internship, she was a psychological assistant with the practice, where she developed a love for values-based interventions.
Prior to her internship, she was a psychological assistant with the practice, where she developed a love for values based interventions and collaborating with clients to facilitate change with the clients and families she works with.
Clinical Training: Dr. Lambert-Holmes is completing her Post-Doctoral training with the practice. She graduated with her Doctorate in Clinical Psychology in 2022 from The Wright Institute. Dr. Lambert-Holmes completed her pre-doctoral internship at Children’s Institute Inc and earned certification in Parent Child Interaction Therapy (PCIT).
Clinical Experience: Dr. Lambert-Holmes has been with the practice for over 3 years and has also previously worked in community mental health with young children and their families providing in-home services. She also has experience as an ABA therapist with young children with Autism. Throughout her academic career, Dr. Lambert-Holmes has treated children, adolescents, and adults in several settings, ranging from in-home, to high schools, and community mental health centers. Since returning to the practice, Dr. Lambert-Holmes has focused on treating children and teenagers with fear-based struggles, such as OCD, Social Anxiety, Separation Anxiety, and Specific Phobias. Her work also includes working directly with parents to support them in learning and implementing the tools their children are learning.
Clinical Research: Dr. Lambert-Holmes completed her doctoral dissertation research project, focusing on the experience of clinicians providing psychotherapy treatment of children and teens with Autism.

Edlin Montero
Behavioral Coach
Experience: Edlin is finishing up her first year of training for a Psy.D. at the Wright Institute. She has experience working at a community-based recovery clinic supporting individuals with substance use and trauma.
In July 2025, she will begin a new role at the Santa Rosa VA Trauma-Focused Community-Based Outpatient Clinic (CBOC).
Clinical Interests: Edlin is committed to supporting individuals of all ages who are navigating anxiety-based struggles and trauma- related responses. She has developed a strong interest in acceptance and values-based interventions, particularly those grounded in Acceptance and Commitment Therapy (ACT).
Clinical Training: Edlin has received addtitional training in Cognative Behavioral Therapy (CBT). She strives to provide the best possible care to her clients.
Clinical Experience: Edlin has gained much of her experience in community-based mental health settings.
Clinical Research: Edlin is in the early stages of developing her dissertation topic, but she is considering a focus on trauma and anxiety.

Patricia E. Zurita Ona, Psy.D.
Director
Dr. Zurita Ona, or “Dr. Z,” is a Licensed Clinical Psychologist in California. Her clinical work started first as a school psychologist and then as a clinical psychologist. For over sixteen years she has developed significant experience working with children, adolescents and adults struggling with anxiety, perfectionism, procrastination, and emotion regulation problems; particular areas of expertise are Obsessive-Compulsive Disorder and related conditions. Dr. Z is passionate about helping clients to get unstuck from any problem related to fear-based struggles.
Dr. Z attends local, national, and international conferences on a regular basis in order to present her clinical work and keep up with current clinical research to deliver up-to-date therapy services to her clients. In addition to her doctoral training, Dr. Z is a graduate of the International OCD foundation Behavior Therapy Training Institute (BTTI) for the treatment of pediatric OCD and adult OCD; her clinical work is primarily based on Exposure and Response Prevention (ERP), the recognized front-line treatment for OCD, anxiety and related condition disorders. Dr. Z completed a 10-day intensive training in Dialectical Behavior Therapy (DBT) and over the last 10 years, she has been learning, practicing, and teaching Acceptance and Commitment Therapy (ACT) applied to specific populations. In 2019 Dr. Z had been nominated a Fellow of the Association of Contextual Behavioral Science.
Dr. Z is the author of the following books:
- ACT Beyond OCD: An Acceptance and Commitment Therapy Workbook for Adults
- The ACT Workbook for Teens with OCD: Unhook Yourself and Live Life to the Full
- Parenting a Troubled Teen: Using Acceptance and Commitment Therapy
- Escaping the Emotional Roller Coaster: ACT for the Emotionally Sensitive
- Acceptance and Commitment Skills for Perfectionism and High-Achieving Behaviors: Do Things Your Way, Be Yourself, and Live a Purposeful Life
- Acceptance and Commitment Therapy for Borderline Personality Disorder: A Flexible Treatment Plan for Clients with Emotional Dysregulation
Dr. Z is the co-author of the book Mind and emotions: a universal protocol for emotional disorders” that has received a “Self-help seal of merit” from the Association for Behavior and Cognitive Therapists (ABCT).”
In addition to private practice, Dr. Z is a clinical faculty for The Wright Institute where she supervises and teaches doctoral students. Every year, Dr. Z selects 1-3 students to collaborate in their doctoral dissertations and/or continue training them as psychological assistants. Dr. Z is very interested in advancing clinical science that could fundamentally improve clients’ struggles in their life.
Dr. Z is a member of the following organizations:
Anxiety and Depression American Association (ADAA), Association for Behavioral and Cognitive Therapies (ABCT), International Obsessive Compulsive Disorder Foundation (IOCDF), Northern California CBT Network (NCCBT), and Association for Contextual Behavioral Science (ACBS), and Made of Millions.

Emma Joshu
Intake Coordinator
Experience: Emma attended Yavapai College and completed general education classes. She has since worked in multiple roles perfecting customer service skills and is dedicated to helping our clients every step of the way.
Emma is passionate about living a healthy lifestyle, spending time family and does photography in her spare time.

Eunice Jan Tiglao
Administrative Assistant
Experience: Eunice recently received a Bachelor’s Degree in Psychology from UC Berkeley. She has already earned two Associate’s Degrees in Psychology and Sociology from Diablo Valley College. Although she has not chosen a particular clinical interest, being a part of East Bay Behavior Therapy Center (EBBTC) has given her some knowledge and experiences on how to utilize the different kinds of methods that EBBTC has to offer, including Exposure Response Prevention (ERP).
Eunice hopes to achieve a Master’s Degree and/or a PsyD to become a Clinical Psychologist herself.
Intensive Outpatient Program
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We work with children, teens, and adults and do our best to get you back into your life!



925.956.4636
intakes@eastbaybehaviortherapycenter.com
Address
45 Quail Court, Suite 204
Walnut Creek, Ca 94596
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