About me

Federally recognised psychotherapist / chartered clinical psychologist
Psychologist FSP
I work as a chartered clinical psychologist with a focus on cognitive behavioral therapy.
My services are aimed at adults experiencing anxiety, obsessive-compulsive symptoms, depressive moods, crisis situations, stress or overwhelm, as well as burnout.
After graduating from the University of Marburg, I worked at the University of Oxford, Department of Psychiatry and at King’s College London where I specialised in anxiety and obsessive-compulsive disorders. I have continued to combine my interests in research and therapy in a range of academic and clinical settings. As a federally licensed psychological psychotherapist, my approach is scientifically based using cognitive behaviour therapy.
Since 2015, I have been working in Basel, where I also live with my family.
I aim to support you to make clear, realistic and sustainable changes in a warm, friendly and collaborative way.
Education and Qualifications
2025 – Federally Licensed Psychotherapist (Switzerland)
2022 – Habilitation and Venia Docendi, University of Basel
2006 – State License as Psychological Psychotherapist, Germany
2003 – PhD in Psychology, University of Marburg, Germany
1999 – Diploma in Psychology, University of Marburg, Germany
1999 – 2003, I worked at the University of Oxford, Department of Psychiatry, and at King’s College London, specializing in anxiety and obsessive-compulsive disorders.
Therapy in English is available.
Memberships
Swiss Society for Obsessive-Compulsive Disorders
Federation of Swiss Psychologists (FSP)
Association of Psychotherapists of Basel (VPB)
Special Interest Group Obsessive-Compulsive Disorder
German Society for Obsessive-Compulsive Disorders
German Psychological Society
Publications
52 publications in international journals (topics include anxiety, OCD, depression, rumination, and new technologies in cognitive behavioral therapy).
Selected Book Chapters
Endres, D., Wahl-Kordon, A., Wahl, K., Hohagen, H., & Voderholzer, U. (2024). Obsessive-Compulsive and Related Disorders. In L. T. van Elst, E. Schramm, & M. Berger (Eds.), Mental Disorders: Clinical Aspects and Therapy. Elsevier Health Sciences.
Heinzel, C. V., & Wahl, K. (2022). Theoretical Models of Obsessive-Compulsive Disorder. In Charles Benoy & Marc Walter (Eds.), Obsessive-Compulsive Disorder: Foundations – Forms – Interventions. Stuttgart: Kohlhammer.
Lieb, R., Hofer, P., & Wahl, K. (2019). Epidemiology of Obsessive-Compulsive Disorder. In L. F. Fontenelle & M. Yucel (Eds.), A Transdiagnostic Diagnostic Approach to Obsessions, Compulsions and Related Phenomena. Cambridge University Press.
Wahl-Kordon, A., Wahl, K., & Hohagen, F. (2015). Obsessive-Compulsive Disorders. In M. Berger (Ed.), Mental Disorders: Clinical Aspects and Therapy (pp. 477–494). Munich: Elsevier, Urban & Fischer.