About CABT: Evidence-Based Therapy for Anxiety, OCD & More

CABT is a specialized mental health practice in Bryn Mawr, PA, on the Main Line, just outside Philadelphia, PA, focused on anxiety disorders, OCD, PTSD, and emetophobia.

High-quality mental health care is hard to find.

But it shouldn’t be.

Infographic showing 11-year average delay in receiving mental health treatment - CABT evidence-based care Bryn Mawr PA
Mental health statistics icon - CABT anxiety therapy practice greater Philadelphia area

Did You Know

On average, it can take people eleven years to receive mental health treatment–from noticing a problem, to seeking help, to finally receiving effective treatment (source: National Alliance on Mental Illness). 

Our Mission

WHO WE ARE

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Dr. Steven Tsao PhD co-founder of CABT meeting with patient for OCD and anxiety therapy in Bryn Mawr PA

At CABT, we help close the gap in mental health care by providing timely, collaborative, evidence-based treatment—and by training professionals around the world to expand access to the same high-quality care.

CABT By the Numbers: Our Impact

30,000+

Therapy sessions delivered

4,000+

Therapists trained by CABT

1,000+

Patients treated at CABT

60+

Workshops ran for therapists worldwide

HOW IT ALL STARTED

Our Story

Co-founders Dr. Steven Tsao PhD and Dr. David Yusko PsyD of Center for Anxiety and Behavior Therapy in Bryn Mawr PA

CABT began in 2015 as a shared vision between clinical psychologists David Yusko and Steven Tsao. What started small has grown into a passionate team of dedicated therapists committed to delivering high-quality mental health care and making it more accessible around the world. From our first OCD workshop in 2019 to training over 1,600 therapists in the first five years of operation, we’ve stayed grounded in our mission: to provide expert, compassionate care and training, so patients don’t have to suffer longer than necessary.

Our Founders

Dr. Steven Tsao PhD co-founder and clinical psychologist specializing in OCD and anxiety treatment at CABT Bryn Mawr PA & greater Philadelphia area

Steven Tsao, PhD

Co-Founder of CABT and clinical psychologist trained at Fordham University who specializes in OCD, post-traumatic stress, anxiety, and physician mental health.

Dr. David Yusko PsyD co-founder and clinical psychologist specializing in emetophobia and OCD therapy at CABT Bryn Mawr PA & greater Philadelphia area

David Yusko, PsyD

Co-Founder of CABT and clinical psychologist with a doctorate from Rutgers University who specializes in emetophobia, OCD, post-traumatic stress, anxiety, and working with athletes.

Our Mental Health Treatment Specialties

While every therapist at CABT is an expert in anxiety disorders and OCD, many also bring specialized expertise in areas such as emetophobia, PTSD, depression, perinatal and postpartum mental health, eating disorders, and related concerns like hair-pulling, skin-picking, and body dysmorphia.

Our team offers personalized, research-based treatment plans to help patients struggling with panic, anxiety, and worry develop skills to manage symptoms and live their best lives in line with their values.

Our therapists use evidence-based treatments to help patients process trauma and PTSD, addressing the root causes while reducing symptoms and restoring safety and control.

We’re one of the few centers worldwide specializing in emetophobia, offering targeted treatment and a supportive community for patients and therapists through the Emetophobia Institute.

We provide specialized, science-backed care—including Exposure and Response Prevention (ERP)—to help patients manage symptoms and reclaim their peace of mind.

Our team provides tailored, evidence-based treatments to help kids and teens better understand their anxiety and build lasting coping skills.

Our Approach & Core Values

We’re dedicated to improving the lives of youth and adults affected by anxiety through compassionate, evidence-based care. At the heart of our work is a commitment to excellence—not only in the therapy room, but also in training and uplifting the next generation of mental health professionals.

HIGH-QUALITY MENTAL CARE

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1

We provide personalized, effective treatment rooted in compassion, clinical rigor, and a deep respect for each client’s ability to access and build their own resiliency.

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2

EVIDENCE-BASED PRACTICES

Our care is grounded in the latest research and gold-standard approaches like ERP, PE, and CPT to ensure meaningful, lasting results.

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3

INTERNATIONALLY RECOGNIZED EXPERTS

Our clinicians are leaders in the field—trusted educators, supervisors, and practitioners who shape the future of mental health care.

We believe high-quality mental health care is strengthened through teamwork, partnering with patients, families, and fellow providers to deliver cohesive, informed care.

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4

COLLABORATIVE MODEL

Our Team

Our team is made up of warm, personable clinicians who were carefully selected for both their character and clinical excellence. Trained by our founders and grounded in evidence-based care.

Each therapist brings deep expertise in anxiety and OCD, with additional subspecialties ranging from PTSD and adolescent depression to perinatal mental health and emerging eating disorders. Our team sees patients in-person in Bryn Mawr, PA and virtually via telehealth.

 Frequently Asked Questions About Mental Health Treatment