Contact us
Feel free to contact us for more information or to book an assessment. We support you on your path toward a more balanced and meaningful life.
Most questions about assessment, pricing, and the process are answered in our FAQ. Want to book an assessment? The fastest way is to book your clinical interview directly.
If you can't find what you're looking for, or you'd rather talk to us first, you're of course welcome to write below.
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Markus Lien
Clinic Director
I'm a psychologist authorized by the Danish Supervisory Board and a member of Dansk Psykologforening. Since 2021 I've run a private practice in Copenhagen; I'm now introducing Alethia, a clinic where our psychologists and psychiatrists assess and treat adults for ADHD/ADD, autism, PTSD, anxiety, depression, OCD, personality disorders and addiction, always with a clear plan grounded in accurate diagnosis.
Approach
Psychodynamic and client-centered, emphasizing clarity and measurable short- and long-term progress. Trained in CBT and CPT for PTSD; MAPS-certified in MDMA-assisted psychotherapy; supervised in Schema and Narrative Therapy; ADOS-2 certified; experienced in WAIS/WISC assessments and psychoeducation.
Experience
Includes work at:
- Norway's leading addiction rehabilitation clinic
- Ward psychologist at a dual-diagnosis psychiatric hospital
- Denmark's largest private psychiatric hospital
- A Copenhagen clinic for expatriates
Alethia, grounded in the idea of truth and disclosure, is dedicated to precise assessments that clarify underlying causes and lead to tailored, effective treatment for each individual client.
Our address
Visit us at our clinic in central Copenhagen
Address
Fiolstræde 14, 1. sal
1171 København
Public transport
Nørreport Station, approx. 5 min walk
Entrance
Ring 'Alethia' at the street door. First door on the left, ring again at the clinic door. Take a seat in the waiting room to the right.
How to get started
Write or call
Send us a message via the form above or call us during phone hours (Mon & Thu 15:30–17:00). We typically respond within 2 business days. You can also call directly at +45 42 62 00 51.
Book your first visit
All new clients start with a clinical interview (approx. 2 hours). You can book directly online via our booking page, or we can help you find a suitable time.
Find us
The clinic is centrally located in Copenhagen's Latin Quarter, near Nørreport Station. Fiolstræde 14, 1st floor. Ring 'Alethia' at the street door. We offer assessment and therapy in Danish, English, Norwegian, and Swedish.