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Our Team at Siam Rehab Thailand

At Siam Rehab we have assembled a team of highly qualified specialists to treat your needs and give you the best chance of lasting recovery from drug and/or alcohol addiction. 

Our Team at Siam Rehab Thailand

At Siam Rehab, we have a team of professionals who are dedicated to providing the most effective addiction treatment programme available anywhere in the world. All of the counsellors had their own struggles with addiction in the past before learning to get and stay clean and sober as well as studying for their counselling qualifications. They know firsthand the struggle with addiction, this allows them to connect on a deeper level with their clients. We have one of the best staff-to-client ratios in the rehab industry, with a level of direct contact (individual and group counselling sessions, and counsellor availability) that is difficult to find anywhere.

Besides our counsellors and client support, we have excellent team for all the other amenities needed at a full-service, residential treatment facility. This extends to our kitchen staff, hospitality, exercise and excursion programmes, groundskeeping, massage and security. 

Our team

Dr. Nattapatt
(Dr. Mark)

Medical Director


Siam Rehab is fortunate to be the only centre in Thailand with a qualified addiction psychiatrist as the medical director and head of treatment.

Dr. Mark has been practicing medicine for 19 years since graduating from the University of Chiang Mai’s medical school and specializing in Addiction Psychiatry at Suan Prung Psychiatric Hospital.

Regularly on site, Dr. Mark oversees all the medical needs of our clients, as well as detox as an outpatient from his clinic or in the nearby hospital when required.

With a very calm and non-formal demeanor, Dr. Mark can very quickly put a client at ease and make them feel comfortable.

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Dr. Jutta Pauls

Europe Medical Director


Dr. Jutta has been working as a Psychiatrist in Germany, The Netherlands and Switzerland for more than 20 years and can help you in English, German or Dutch. 
With extensive experience in treating people with substance abuse, Dr. Jutta always tries her best to give optimal advice to help you live a healthy and happy life. 
Doctor Jutta studied at the university of Göttingen in Germany.
For clients coming from Europe, Dr. Jutta will do your primary assessment and follow up care and be sure that treatment at Siam Rehab is the most appropriate option for you. 
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Dr. Erik Fleischman

Medical Advisor

Dr. Erik Fleischman is a specialist in Oncology, Infectious Diseases and Regenerative medicine for over 25 years. He is an American Physician and Surgeon who has been based in Asia for over 15 years.

He is the former Medical Director of Bumrungrad International Hospital in Thailand and also a former Senior Advisor for President Bill Clinton’s Health Initiative with work in Asia, Africa, Europe and the Americas. He has also be a medical advisor for the US State Department, Family Health International and International SOS over the past 2 decades.

He has been practicing Regenerative Medicine since the early 1990’s and was one of Hollywood’s Doctor to the Stars, consulting in Anti-aging and Regenerative medicine for many A-list action and movie stars. Since that time
he has developed a system of Regenerative Medicine that include detoxification processes – for the liver, kidneys and blood- as well as boosting treatments for the brain and cognition. These treatments have been developed specifically for the issues and physiologies of recovering addicts and alcoholics.

He will consult with each client and review blood testing to determine an individual program that will elevate the physical and hormonal status and, most importantly, the goals of therapy for each client. With a combination of treatments that are both intravenous, oral and other available Western technologies he can provide our clients with increased energy, clarity, lowered stress and anxiety and increased stamina.

Dr. Fleischman has experience with thousands of patients over the last 3 decades and is one of the foremost authorities in Asia on cell regeneration, detoxification and Neuro/Brain protection in clients with chronic disease or addiction.

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Panjama (Mint) BA - Psy

Director (Thailand)

Mint has worked in the operations end of addiction treatment centres for most of the past 15 years. Mint graduated with a degree in Psychology and English and then started her career in Bangkok. Having also studied and worked in Australia and Canada for more than 7 years, she understands the needs of foreigners and an international treatment setting like Siam Rehab.

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René Feyen - (Msc Psych)

Psychologist -

Intake and

Aftercare (Europe)

René  is a specialist in Addiction rehab, Psychiatric diseases and Trauma therapy. He is a Dutch Psychologist and Business Consultant for 40 years. He also studied  (Post Academic),  Solution Focussed Therapy (Post Academic), EMDR Therapy, Biofeedback and Commercial and Business Economy (Bachelor).

He was  former director of Human Resources in the Retail business, before he started his own practice. His clients have been Multinationals, Healthcare Institutions, Schools (Secondary Education), Local Government, Clinics for Addiction and Psychiatry, Police etc.

René has experience with more than fourteen thousand clients from Board of Directors  Executives to the average person. With his personal style he can facilitate and connect with people from all walks of life.

People call him a straight and empathetic person.

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Roy Faessen

Director (Europe)

Roy has worked for a number of years as a case manager helping clients get the treatment they need and is also a trained counsellor. 

When you first call he will help you decide on the best treatment for you and with his own personal experience knows exactly what you need on an individual bases.

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Team Lead





Palakorn (Topp) - M.A. (Psych.)

Clinical Psychologist

Taweechai - M.A. (Psych.)

Clinical Psychologist

Ponyanee (Nee)

Psychiatric Nurse

Tanes Ongjunta - B.A.

Boxing & Fitness Instructor

Duangduan (Noo)

Yoga Instructor

Wuttipong (Woody) - BA

Client Support Worker

Katipat (Sine) - BA

Executive Chef - Kitchen Manager

Rattana (Toi) - BA


Wilai (wi)

Massage Therapist


Therapy Canine Companion

Yin is an adorable beagle who has been re-homed to Siam Rehab to be a therapy dog. She looks forward to welcoming you to the centre with a wet nose and a cuddle.

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Therapy Canine Companion

Sua, his name means Tiger in Thai, came with the new facility.  He grew up here and actually belongs to the neighbours but decided he wasn’t leaving. 

He is so sweet and gentle that we were happy to accommodate him and he is onsite most days. 

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Therapy Canine Companion - Emeritus

Lucky has gone on to greener pastures. He was the first therapy canine companion. He worked at Siam Rehab from day one and was himself an example of rehabilitation. Found on the side of the road, he was taken home and given a second chance. Covered in mange and never having had a bath, his future didn’t look good. After being taken care of and brought back to health, he considered it his mission to help the new clients feel at ease as well helping the night security guard do his job. He was a good listener and would never tell secrets to anyone else, providing you gave him a bit of a belly rub.
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