ISTDP Therapist
Tatiana Nassar
You don’t have to carry it alone. Together, we build the courage to face what you’ve been avoiding, grow beyond what holds you back and that’s where everything changes.

Upcoming
5 Online Courses

About Tatiana Nassar
Tatiana Nassar is a clinical psychologist and ISTDP-certified therapist based in Beirut, certified through the IEDTA and trained in Berlin.
With a deep passion for human connection and lasting change, Tatiana combines evidence-based ISTDP techniques with a compassionate, results-oriented approach. She specializes in trauma, anxiety, depression, couples therapy, and family therapy; helping individuals, couples, and families move beyond what holds them back and reconnect with who they truly are.
As an ISTDP teacher and trainer, Tatiana is dedicated to growing the next generation of therapists in the region.
Beyond the therapy room, she is a mental health activist and creator of therapeutic tools for children; including storybooks, games, and toys designed to help kids process emotions, build resilience, and thrive.
Why Choose Tatiana?
Choosing to work with Tatiana means choosing a path of real, lasting change; not just symptom relief.
With specialized expertise in trauma, anxiety, depression, couples therapy, and family therapy, Tatiana brings the depth of ISTDP; a scientifically proven, emotion-focused approach; into every session, both in person in Beirut and online worldwide.
What sets Tatiana apart is her unique combination of roles: a clinician, an ISTDP teacher and trainer, and a creator of therapeutic tools for children and families. Her work goes beyond the therapy room; shaping the next generation of therapists and making mental health accessible at every age.
Her approach is warm yet direct, compassionate yet results-oriented. You won’t just be heard; you’ll be guided to face what’s beneath the surface and move forward with clarity, courage, and confidence.


Values
Courage
Believing in every person's capacity to face their deepest emotions, unresolved pain, and long-held defenses; even when it feels impossible.
Compassion
Meeting each person's pain with warmth, respect, and without judgment.
Integrity
Maintaining the highest ethical and professional standards in every session.
Evidence-Based Practice
Grounding all work in scientifically proven therapeutic approaches.
Innovation
Continuously creating new ways to make mental health accessible for children, individuals, couples, and families; from evidence-based therapy sessions to storybooks, games, toys and therapeutic tools.
Connection
Building genuine, trust-based relationships with every client, couple, and family.
Tatiana's Specialties
Every person who walks through Tatiana’s door, or joins her online, carries a unique story. Her work spans trauma, anxiety, depression, couples therapy, family therapy, children’s mental health, anger management, overthinking and obsessions, fears and phobias, conflict resolution, and pregnancy and postpartum mental health, all approached through the evidence-based lens of Intensive Short-Term Dynamic Psychotherapy (ISTDP).
Whether someone is carrying the weight of unresolved trauma, struggling with anxiety that won’t quiet down, feeling disconnected from themselves through depression, navigating a relationship in crisis, experiencing the emotional complexity of pregnancy or the postpartum period, or raising a child who is struggling to express what they feel, Tatiana meets them exactly where they are.
Her approach is never one-size-fits-all. It is deep, tailored, and rooted in the belief that beneath every symptom lies an emotion waiting to be experienced and understood, and that real, lasting change becomes possible when people find the courage to face it together with her.
Upcoming Courses

Anger is not something to suppress or fear; it is one of your most powerful emotions. Using ISTDP as a foundation, this course helps you understand what your anger is really telling you, experience it safely, and channel it into a constructive force for positive change in your life.

Children feel conflict deeply but often lack the tools to express and manage it. This course uses age-appropriate ISTDP-based techniques, interactive exercises, and engaging activities to help children understand their emotions, resolve disagreements, and build healthy relationship skills from an early age.

Conflict is inevitable; but it doesn’t have to be destructive. Grounded in ISTDP principles, this course gives you practical tools to navigate disagreements, communicate with clarity and empathy, and transform tension into understanding; in your relationships, your family, and your workplace.

Anxiety is not the enemy; it is a signal. This course begins by helping you recognize and understand the physical and cognitive symptoms of anxiety in your body and brain; the tension, the racing heart, the shallow breath, the foggy head, and the lack of concentration; because in ISTDP, the body is where the work begins. From there, we go deeper, exploring what lies beneath these symptoms, breaking free from avoidance patterns, and building lasting emotional freedom.

Does the thought of boarding a plane fill you with dread? This course combines ISTDP techniques, cognitive-behavioral strategies, and knowledge about aviation to help you understand and overcome your fear of flying; so you can finally travel with confidence and ease.

Pregnancy and motherhood are life-changing; and emotionally complex. Drawing on ISTDP principles, this course offers a safe, compassionate space to understand and process the emotional highs and lows of this journey; navigating mood changes, identity shifts, relationship challenges, and the often unspoken struggles of the postpartum period.
What People Say
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Book a Discovery Call
Book a confidential discovery call with Tatiana, in person in Beirut or online.
Discovery calls: Monday and Thursday, 1:30–2:30 pm and 5:30–6:30 pm (Beirut time)
