Meet Our Specialists
"Exceptional individuals united by a passion for transformation"

Dirk Stikker
Founder & Director of MASTERMIND2.0
Dirk Stikker
Founder & Director of MASTERMIND2.0
Qualified Addictions Expert with 30 years of experience across multiple countries and settings, including 13 years at a UK National Centre of Excellence.
Degrees & Certifications
- •Cert. Residential Addictions Therapy
- •Dip. Addictions Counseling and Consultancy
- •P.G. Dip. Psychoanalytic Psychotherapy
- •MSc. Family and Systemic Psychotherapy

Nora Kontostergiou
Program Director & Senior Therapist
Nora Kontostergiou
Program Director & Senior Therapist
Highly experienced psychoanalytical psychotherapist specializing in clinical psychology, dual diagnosis, and psychoanalysis with 20 years of practice.
Degrees & Certifications
- •BA
- •PG.DIP.
- •M.CLIN.S

Ariadni Gramati
Senior Therapist
Ariadni Gramati
Senior Therapist
Qualified mental health practitioner with 17 years' experience in psychoanalytic therapy, group and family work, specializing in systemic psychotherapy.
Degrees & Certifications
- •BSc Psychology
- •MSc Forensic Psychology
- •MSc Family & Systemic Psychotherapy

Dr. Erik van Beuningen
Neurofeedback Therapist
Dr. Erik van Beuningen
Neurofeedback Therapist
Neurofeedback therapist with expertise since 2003, leading KTNO-accredited training programs and teaching "brain and behavior" modules.
Degrees & Certifications
- •Studied Biological Psychology, University of Utrecht
- •KTNO Accredited Trainer

John Midavaine MD.
Medical Director
John Midavaine MD.
Medical Director
General Practitioner specialized in Sports Medicine and Orthomolecular Medicine, with 35+ years in sports medicine and research.
Degrees & Certifications
- •MD
- •Specialized in Sports Medicine and Orthomolecular Medicine

Richard Bruyn
Director of Neurology Department
Richard Bruyn
Director of Neurology Department
General neurologist with 30+ years’ experience, specializing in epilepsy, alcohol-related conditions, impulse control and pain syndromes.
Degrees & Certifications
- •M.D.
- •D.Sc.

Toli Cardases
Director of Business and Finance
Toli Cardases
Director of Business and Finance
Business and finance expert with experience in sales analysis, reporting, budgeting and KPI monitoring for international and local companies.
Degrees & Certifications
- •BA Economics
- •Dip. Business Studies

Mike Mavrokordatos
Addictions Specialist, Psychologist
Mike Mavrokordatos
Addictions Specialist, Psychologist
Humanistic psychologist and addictions specialist with international background and an HND in Psychology and Counseling.
Degrees & Certifications
- •Dip. Psychology

Malcolm Shaw
Senior Addictions Specialist
Malcolm Shaw
Senior Addictions Specialist
Registered Psychiatric Nurse with 35+ years in addictions and mental health, specializing in forensic nursing, substance misuse services, and staff training.
Degrees & Certifications
- •Diploma Alcohol Counselling and Consultancy
- •Registered Psychiatric Nurse
- •Teaching and Supervision in Clinical Practice ENB998

Carolien Stikker
Integrative Psychotherapist
Carolien Stikker
Integrative Psychotherapist
Integrative psychotherapist with innovative walking-therapy combining movement and body awareness to enhance insight.
Degrees & Certifications
- •Dip. Integrative Psychotherapy

Hellmut Wolf
Addictions Specialist & Sex Therapist, Creative Artist and Musician
Hellmut Wolf
Addictions Specialist & Sex Therapist, Creative Artist and Musician
Certified Humaniversity therapist and trainer since 1980, specializing in group therapy, sexuality, creativity workshops, and music production.
Degrees & Certifications
- •Cert. Addictions Therapy
- •Humaniversity Trainer

Yvonne-Arusha Schol
Addictions Specialist
Yvonne-Arusha Schol
Addictions Specialist
Addictions-family disturbance specialist with 35+ years of yogic practice and international Gestalt, MI, Rogerian, and Jungian psychotherapy training.
Degrees & Certifications
- •Dip. Psychotherapy
- •Cert. Iyengar Yoga Teacher

Elizabeth Kirby Fullerton
Progressive Recovery Coach
Elizabeth Kirby Fullerton
Progressive Recovery Coach
Certified health and wellness coach with Ph.D. and culinary coaching expertise, specializing in personalized well-being blueprints.
Degrees & Certifications
- •Ph.D.
- •M.Ed.
- •Certified Health and Wellness Coach

Vivian Menjivar
Holistic Facilitator & Teacher, Arvigo Techniques of Maya Abdominal Therapy
Vivian Menjivar
Holistic Facilitator & Teacher, Arvigo Techniques of Maya Abdominal Therapy
Holistic healing facilitator integrating traditional techniques, clairsentience, and compassion in Athens and Corfu.
Degrees & Certifications
- •Certified Amma Therapist
- •B.A. Psychology
- •Holistic Health Coach
Our team is committed to your complete transformation. Each specialist brings their unique expertise to create a holistic healing experience that addresses every aspect of your wellbeing.