Bangkok Hospital – Thailand
About Dr. Chatchai Koowattanapaisan
Dr. Chatchai Koowattanapaisan is a Senior Consultant Medical Oncologist with 31+ years of clinical experience, recognised as one of the leading Medical Oncologist specialist in Bangkok, Thailand. He combines internal medicine expertise with medical oncology training and is widely consulted by international patients for chemotherapy, targeted therapy, and immunotherapy across solid tumours.
- 31+ years of experience in internal medicine and medical oncology.
- MD (1992) from Faculty of Medicine, Chulalongkorn University, Thailand.
- Diplomate, Thai Board of Internal Medicine (1997) — Bhumibol Adulyadej Hospital.
- Diplomate, Thai Board of Medical Oncology (2004) — Ramathibodi Hospital, Mahidol University.
- Senior Consultant at Bangkok Dusit Medical Services (BDMS) Wattanosoth Cancer Hospital — one of Thailand’s largest dedicated cancer centres.
Qualifications & Credentials
Medical Degrees
- Doctor of Medicine (M.D.) — Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand, 1992
Fellowships & Special Training
- Diplomate, Thai Board of Internal Medicine — Bhumibol Adulyadej Hospital, Thailand, 1997
- Diplomate, Thai Board of Medical Oncology — Ramathibodi Hospital, Mahidol University, Thailand, 2004
Certifications & Accreditations
- Thai Medical Council Registration
- Thai Board of Internal Medicine
- Thai Board of Medical Oncology
Areas of Expertise
Major Conditions Treated
- Breast Cancer
- Lung Cancer
- Colorectal Cancer
- Stomach (Gastric) Cancer
- Liver & Pancreatic Cancer
- Prostate Cancer
- Cervical & Gynaecologic Cancers
- Head & Neck Cancers
- Lymphoma
- Sarcomas
- Brain Tumours (Systemic Therapy)
- Cancers of Unknown Primary
Sub-specialties
- Systemic Cancer Therapy: Chemotherapy, targeted therapy, and immunotherapy for solid tumours — a trusted Medical Oncologist in Bangkok for international patients seeking best cancer treatment options in Thailand.
- Internal Medicine in Oncology: Comprehensive medical care for cancer patients with complex comorbidities.
- Multidisciplinary Tumour Board Participation: Active in tumour-board–driven treatment planning across BDMS cancer centres.
Advanced Procedures & Treatments
- Chemotherapy (IV & Oral Regimens)
- Targeted Therapy (EGFR, ALK, HER2, BRAF inhibitors)
- Immunotherapy / Checkpoint Inhibitors (PD-1, PD-L1)
- Hormone Therapy (Breast, Prostate Cancer)
- Bone-Modifying Agents
- Tumour Marker & Molecular Profiling
- Port-a-Cath Insertion for Chemotherapy
- Palliative Care & Symptom Management
List of Disease and Treatment for which Dr. Chatchai Koowattanapaisan can be consulted
Professional Experience
Current Affiliation
- Bangkok Hospital, Bangkok — Consultant, Internal Medicine & Medical Oncology, Present
- Wattanosoth Cancer Hospital, Bangkok — Consultant Medical Oncologist, Present
- Bangkok Cancer Hospital — Affiliated Consultant, Present
- Bangkok Dusit Medical Services (BDMS) — Senior Consultant, Present
Past Affiliations
- Ramathibodi Hospital, Mahidol University — Fellowship in Medical Oncology (2004)
- Bhumibol Adulyadej Hospital — Residency in Internal Medicine (1997)
Academic & Research Roles
- Participates in multidisciplinary tumour boards across BDMS cancer programmes
- Member, Thai Medical Council and oncology professional societies
Key Achievements
- 31+ years of clinical experience in internal medicine and medical oncology
- Senior role at Wattanosoth Cancer Hospital — one of Thailand's leading cancer centres
- High patient recommendation rate from international medical travellers
- Expertise across the full spectrum of solid tumour systemic therapies
Awards & Recognitions
National & International Awards
- Information not publicly available.
Professional Memberships
- Thai Medical Council
- Thai Board of Internal Medicine
- Thai Board of Medical Oncology
Research & Publications
Published Papers (Selected)
- Information not publicly available.
Ongoing Research & Clinical Interests
- Targeted therapy and immunotherapy in advanced solid tumours
- Multidisciplinary cancer care
- Supportive and palliative oncology
Estimated Treatment Costs
| Procedure / Consultation | Estimated Cost (INR) | Estimated Cost (USD) |
|---|---|---|
| Medical Oncology Consultation | ₹2,500 – ₹6,000 | $30 – $75 |
| Chemotherapy (per cycle, regimen-dependent) | ₹20,000 – ₹1,50,000 | $240 – $1,800 |
| Targeted Therapy (per month, drug-dependent) | ₹50,000 – ₹3,00,000 | $600 – $3,600 |
| Immunotherapy (per cycle) | ₹80,000 – ₹2,50,000 | $960 – $3,000 |
| Tumour Marker / Molecular Profiling | ₹5,000 – ₹50,000 | $60 – $600 |
| Port-a-Cath Insertion | ₹40,000 – ₹1,20,000 | $480 – $1,500 |
*Indicative estimates only. Actual costs subject to hospital pricing, case complexity, and insurance. Contact Cancer Rounds for a personalised quote.
Frequently Asked Questions
1. What advanced technologies does Dr. Chatchai Koowattanapaisan use in Medical Oncologist treatment?
Dr. Chatchai Koowattanapaisan uses modern systemic cancer therapies including chemotherapy, targeted therapy (EGFR/ALK/HER2/BRAF inhibitors), and immunotherapy (PD-1/PD-L1 checkpoint inhibitors). His care is supported by molecular profiling, tumour marker testing, and multidisciplinary tumour boards at Wattanosoth Cancer Hospital.
2. What conditions does Dr. Chatchai Koowattanapaisan specialize in treating?
Dr. Chatchai Koowattanapaisan specialises in breast cancer, lung cancer, colorectal cancer, gastric and pancreatic cancer, liver cancer, prostate cancer, gynaecologic cancers, head and neck cancers, lymphoma, and sarcomas. He is regarded as one of the best Medical Oncologist doctors in Bangkok, Thailand.
3. How do I book an appointment with Dr. Chatchai Koowattanapaisan?
Appointments with Dr. Chatchai Koowattanapaisan can be booked directly through the Cancer Rounds website or by contacting their international patient department for priority scheduling.
4. Can international patients receive treatment from Dr. Chatchai Koowattanapaisan?
Yes. Cancer Rounds provides full assistance for international patients seeking treatment from Dr. Chatchai Koowattanapaisan, including medical visa invitation letters, airport transfers, and local accommodation coordination.
5. What support is available for international patients?
International patients benefit from a dedicated concierge service provided by Cancer Rounds, including language interpretation, financial counselling, and pre-travel virtual consultations to review medical records before arrival.
6. Does Dr. Chatchai Koowattanapaisan offer second opinions for Medical Oncologist cases?
Yes. Second opinion consultations can be arranged via Cancer Rounds for patients who wish to review their diagnosis or treatment plan with an expert Medical Oncologist specialist in Bangkok, Thailand.
Bumrungrad International Hospital, Bangkok - Thailand
