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Stephanie B. Mattei, Psy.D.

Clinical Faculty

Licensure: Licensed Psychologist in Pennsylvania

Office: 105 Bala Avenue, Bala Cynwyd PA 19004
Phone: 215-219-1684


B.A. Psychology, Rider University
M.A. Clinical Counseling Psychology, La Salle University
Psy.D. Clinical Psychology, La Salle University
Internship: Elwyn, Inc.
Post-Doctoral Position: The Renfrew Center of Philadelphia
Intensively trained in Dialectical Behavior Therapy

Professional Membership:

  • Association for Behavioral Cognitive Therapies (ABCT)
  • Pennsylvania Psychological Association (PPA)
  • Philadelphia Behavior Therapy Association (PBTA)

Courses taught in the Doctoral Program at La Salle:

  • Psy 705: Psychotherapy II: Group and Systemic Approaches
  • Psy 741: Advanced Seminar in Clinical Psychology- Dialectical Behavior Therapy
  • Psy 851: Independent Study in Dialectical Behavior Therapy

Representative Scholarship:
Mattei, S.  (2009) DBT Basics, Part one. Workshop for interns at Drexel University, Hahneman Campus.
Grassi, A & Mattei, S. (2009) The complete guide to PCOS. Luca Publishing, Haverford PA.
Mattei, S. & Filetti, L. (2009). To Share or Not to Share: Self Disclosure in the treatment of Borderline Personality Disorder. In Bloomgarden, A. & Menuti, R. (Eds)  Psychotherapist Revealed:  Therapists Speak about Self-Disclosure. Routledge; New York.
Mattei, S. & Filetti, L. (2008) Introduction to Dialectical Behavior Therapy. CEU for the Philadelphia Area Group Psychotherapy Society. 
Mattei, S. &  Shwarz, M. (2007) Psychological Aspects of PCOS. In Grassi, A (Ed) The Dietician’s guide to Polycystic Ovary Syndrome.  Luca Publishing, Haverford, PA.
Mattei, S. (2004, February) What to do when a friend has an eating disorder. Guest   Presenter at La Salle University         
Mattei, S. (2003, October) Eating disorders in the 21st Century. Guest Presenter at La Salle University.

Clinical Interests:
I am a Dialectical Behavior Therapy (DBT) therapist.   In my clinical practice I primarily treat individuals with Borderline Personality Disorder (and traits), self -harming behaviors and suicidality, Eating Disorders, Trauma, Depression and Anxiety. I practice comprehensive DBT, and as such run Skills Training Groups, consultation team and individual DBT.

 I supervise students in the application of DBT theories and strategies as well as other therapies that are effective for significant emotion dysregulation.   In our team we focus on the emotion regulation of emotions such as anger, shame and fear and the cognitive/behavioral responses to those emotions.
Randy Fingerhut, Ph.D.
Randy Fingerhut, Ph.D.

Psy.D. in Clinical Psychology
La Salle University
1900 West Olney Avenue
Philadelphia, PA 19141 USA
Phone: 215.951.1350
Fax 215.951.5140

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