Meet our esteemed team at The Diamond Rehab Thailand, where dedication meets diversity in our world-class professionals.
Our multidisciplinary approach integrates a wide range of evidence-based modalities, including Cognitive Behavioural Therapy (CBT), Dialectical Behaviour Therapy (DBT), trauma counselling, dual diagnosis treatment, and specialised care for depression, anxiety, burnout, and more. With decades of collective experience in addiction and mental health, our team is here to guide and support you on your journey to wellness. Let us provide the care you deserve, tailored to your unique needs!
Each of our team members has expertise, experience, and beliefs grounded in the will to help dedicated individuals on their recovery path. At Diamond Rehab Thailand, we’re a team on a shared mission!
Theo and Panwadee de Vries have been running rehabilitation centres in Thailand for more than twelve years. As one of the early pioneers in the Thai rehab industry, they have supported over 2,000 clients on their path to recovery. Theo’s own lived experience sparked a deep passion for helping others, while Panwadee brings exceptional leadership and heart to every aspect of care. The Diamond is the result of their combined experience: a boutique, made-to-measure rehabilitation centre where clinical quality, compassion, and luxury come together to create meaningful and lasting change. ...
Jessica Waller-Wilshaw is an experienced therapist with a Master of Science in Counselling & Psychotherapy and five years of dedicated work in the addiction recovery sector. Her career has taken her across the UK, Europe, and now Thailand, where she has supported individuals of all ages navigating addiction and a wide range of mental health challenges. Her background spans multiple rehabilitation environments, giving her a vast understanding of the diverse needs of clients in treatment. ...
Jessica has been a core part of The Diamond Rehab Thailand for over a year, where she leads the day-to-day operations of the clinical programme. She integrates a variety of evidence-based therapeutic approaches into her work, including CBT, DBT, Schema Therapy, and her recently completed training in EMDR.
Guided by a strong belief in individualised care, Jessica shares:
“I believe in personalised care—every person is unique and deserves to be treated in a way that suits them as an individual. I provide a safe space for clients to feel and express their emotions free of judgment and shame. Long-lasting recovery is what we pride ourselves on here at The Diamond, and I hope to help everyone who walks through our doors achieve this.”
Jiraporn Takonchai, affectionately called Aor, brings seven years of experience in addiction services to her role, ensuring the seamless operation of the rehab facility. From overseeing housekeeping to coordinating with kitchen staff, organising outings to managing admission schedules, Aor handles it all with ...
Dr. Roshan Fernando, MBBS, MDPsych, has over 10 years of experience in clinical, biological psychiatry, and psychiatric epidemiology. Registered with the Sri Lanka Medical Council (SLMC No. 29206), he has numerous publications in peer-reviewed journals and conference proceedings. Dr. Fernando has received the prestigious ...
Experienced Psychotherapist/ Counseling Psychologist with a demonstrated history over 15 years of working in the Clinical Mental Health, Addiction and wellness industry. Advanced EMDR practitioner, Clinical Research, Psychotherapy, Inner Child Work, and Family Therapy. Strong healthcare services professional with a Master of Arts – MA focused in Applied Psychology & Research from Nanyang Technological University. ...
Augustine D’Ewes brings over four decades of experience to her work as a clinician, supervisor, and mentor. Her professional journey began in the sciences, earning a Diploma in Pharmacy and spending years working in hospitals and running chemistry-focused laboratories. Although she excelled in the pharmaceutical field, Augustine eventually discovered her true calling in psychology. She went on to complete her MA in Clinical Psychology later in life—an achievement that marked the beginning of a long and impactful career dedicated to helping people heal. Across her 40 years of practice, Augustine has supported individuals in understanding themselves more deeply while receiving compassionate, person-centred care. She has worked in forensic settings, hospitals, and rehabilitation centres, gaining extensive experience with diverse client groups and complex clinical presentations. She has also presented her work at international conferences, contributing her knowledge and insight to the wider field. Curious by nature and genuinely fascinated by people, Augustine brings warmth, enthusiasm, and steady presence to her clinical work. No problem is too big or too small—she meets clients exactly where they are and walks alongside them as they grow, heal, and work toward becoming the best version of themselves. At The Diamond Rehab Thailand, Augustine provides Clinical Supervision to our therapeutic team, offering guidance, support, and deep clinical wisdom. Her huge experience and grounded, compassionate approach help ensure that every client—and their loved ones—receives the highest standard of care. ...
I am of the opinion that addiction counseling is not just a job or a career path, but a vocation.
I have walked a path of being in addiction, to being recovery for the past 8 years. With it, I have faced the trials and tribulations that accompany a life in recovery, I know there is a way out.
Since discovering my passion for addiction counselling in 2020, I have been pursuing specialist ICDAC qualifications. I am deeply motivated by seeing people grow, heal, and rediscover their potential.
I am a dedicated and compassionate Counsellor with over three years of experience working in both inpatient and outpatient rehabilitation settings. As a recovering addict I draw on my own journey to connect authentically with clients and families. My approach is rooted in empathy, education, and structure — helping others find hope and direction in recovery. ...
Brian Tucker is an ICDAC qualified counsellor from South Africa who has thoroughly walked a path from active addiction into over 14 years of sustained recovery. With a bachelor’s degree in business and over a decade’s experience working in the field of addiction, his journey has led from facilitating community support systems for both addicts and their supporters, to directing registered inpatient facilities, working with multidisciplinary teams in psychiatric settings and running comprehensive outpatient programmes for adolescents and their care givers. He is fiercely enthusiastic and passionate about his craft, a devoted husband and a proud father who carries an inspired dedication to guiding and educating others on addiction, in all its forms. ...
My name is James Donovan. I have been in my personal recovery journey for 11 years and in the professional recovery industry for 9 years and have a passion for working with others that suffer from substance use disorders. ...
I have experience working in many different treatment environments, from primary care rehabilitation centres, halfway houses, as well as reintegration programs across South Africa, using a variety of modalities to ensure clients are met where they are at and receive the best possible care.
I have completed a basic and intermediate addiction counselling certificate and registered with the board of addiction professionals South Africa and have a number of years in both inpatient and outpatient therapy.
My experience both professionally and personally assists me to focus not just on the basics of addiction, but on the psychology of addiction, addressing a variety of disorders and contributing factors to it, to ensure that effective treatment plans be established to promote growth and recovery with the clients that I work with.
Mrs. Bongkotkarn Sirijunchuen, affectionately known as Ow, a distinguished nurse with over a decade of experience specializing in addiction care. Throughout her career, Ow has devoted herself to supporting individuals on their path to recovery at various rehabilitation centers across Thailand. Her unwavering empathy and enthusiasm for guiding clients towards wellness go beyond professional duties — they reflect her true life passion ...
With over a decade of experience in the culinary industry, Chef Kwin together with his dedicated team specializes in both Thai and European cuisine. His expertise has been shaped through years of working in professional European kitchens, where he refined his techniques and deepened his understanding of flavor, precision, and international culinary standards.
Driven by a passion for creating distinctive menus and by his meticulous approach to selecting premium ingredients, Chef Kwin brings a unique character to every dish he crafts. His cooking combines refinement, creativity, and technical skill, offering our guests an elevated dining experience that celebrates both tradition and innovation. ...
Irene Grace Maghopoy is an Addiction Support Worker whose passion is helping individuals feel understood, supported, and safe as they move through their recovery journey. With a Bachelor’s degree in Psychology and as a Licensed Psychometrician, she brings together empathy and evidence-based practice in the care she provides. ...
Irene is grounded in the belief that healing grows in spaces where people feel genuinely seen and respected. She supports clients as they rebuild trust in themselves, navigate difficult emotions, and develop healthier, more sustainable ways of living. Her commitment is to create an environment where each person can reflect, grow, and move forward with renewed strength and wellbeing.
Pink has always had a passion for service work, beginning during her student years. After completing her education, she gained valuable experience in restaurants and department stores. Her love for food service and cooking led her to open her own restaurant, where she thrived in creating memorable dining experiences. As her career evolved, Pink developed a keen interest in languages, discovering that connecting with people and providing exceptional service brings her true happiness. Pink is here to help our clients every step of the way as one of our support workers. ...
Known as Woody, he has dedicated 7 years to being a Client Support Worker, specializing in rehabilitation. Throughout his career, Woody has supported hundreds of clients on their recovery journeys, helping them navigate the challenges of addiction while providing essential tools and emotional support to rebuild their lives. His deep commitment to client advocacy ensures personalized care in a safe and compassionate environment, fostering growth and healing. Woody is onsite most of the days to make sure that our client feels at ease, and he’s always available for a chat or a game of pool. ...
Sun is working as an admin and support staff member at the Diamond Rehab. He plays a vital role in managing internal operations and assisting individuals throughout their treatment journey, ensuring they have a comfortable experience and receive comprehensive care. Sun is dedicated to helping clients recover and reintegrate into society with joy and confidence. He is passionate about helping people, and always available to give his time to clients that are struggling. ...
Ananyalak Sonin, affectionately known as Lek, is our dedicated yoga teacher with a rich background in holistic wellness. At 46 years old, Lek brings over a decade of experience and a 500-hour yoga certification from India to our rehabilitation center. Her deep understanding of yoga, coupled with her compassionate and patient approach, helps ...
Dr. Harshi Dhingra, MD, is a licensed medical doctor with specialization in Pathology. She is currently employed as faculty in a medical school with a tertiary care hospital and research center. She has over a decade of experience in diagnostic, clinical, research, and teaching work, and has several publications in indexed peer reviewed journals to her name. She has a keen interest in medical content writing and reviewing. She holds medical degrees for MBBS and an MD in Pathology from esteemed institutes in India. ...
You can find Dr. Harshi Dhingra, MD, here on: Linkedin, Researchgate, Googlescholar
Vladimira Ivanova is a dedicated psychologist with a passion for helping others. She practices Systemic Individual, Family, and Marital Psychotherapy. In a social rehabilitation and integration center for elderly women and a psychological counseling and rehabilitation center, Vladimira has helped people discover and grow. Vladimira helped addicts and crisis families. She works with each person’s dynamics and environment. She wants to make important issues like addiction more accessible and raise awareness. ...
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