
Professional statement
Dr Irene Chong is a highly accomplished Consultant Clinical Oncologist and the Head of Clinical Oncology at The Royal Marsden, where she holds both private and NHS clinics. She leads academic training for the NIHR/Biomedical Research Centre at both The Royal Marsden and the Institute of Cancer Research (ICR).
Dr Chong completed her medical training at St Bartholomew’s Medical College in London and went on to earn a PhD in Cancer Biology from the ICR. Her clinical expertise lies in treating cancers of the oesophagus, stomach, liver, pancreas, and colon and rectum, with a focus on advanced radiotherapy techniques, including Stereotactic Body Radiotherapy (SBRT) and Intensity-Modulated Radiotherapy (IMRT). She is passionate about curing and managing patients with these conditions.
Dr Chong is part of the Gastrointestinal Clinical Trials Unit at The Royal Marsden. Her research investigates novel therapeutic targets and biomarkers for gastrointestinal cancers through DNA sequencing and functional genomic approaches. She is also exploring the immune landscape of gastrointestinal malignancies to facilitate the design of preventative vaccination.
She collaborates closely with The Royal Marsden’s Rectal Cancer Study Group and the Pelican Cancer Foundation, aiming to identify radiological and molecular markers that predict patient responses to chemotherapy and radiotherapy. During her PhD, Dr Chong received several prestigious awards, including the University of London Scholarship Award, the Fourth NIHR Infrastructure Experimental Medicine Research Award, and the Royal College of Radiologists' Kay Visiting Award.
Clinics

The Royal Marsden Private Care
Central London, Private Care, The Royal Marsden Hospital, Fulham Rd., London SW3 6JJ, W1G 0PLMedical insurances accepted
Credentials
Professional experience
- 18 years of experience
- Clinical Oncologist, Royal Marsden Hospital Private Patients Unit (present)
Subspecialties
- Radiotherapy
- Oesophageal cancer
Education
- MBBS, St Bartholomew's Medical College
- BSc, Tumour Biology, University College London
Positions in organisations
- Director, Academic Training, The Institute of Cancer Research (present)
- Director and Co-Founder, OVIBIO (present)
Publications and conferences
- You can see Dr Chong's publications on ResearchGate.
Prizes and awards
- Royal College of Radiologists' Kay Visiting Award
- University of London Scholarship Award
Languages spoken
- Chinese (mandarin)
- English
Reviews
- Would you recommend this doctor?
- Treatment of the doctor
- Treatment of the staff
- Waiting time
- Condition of facilities
- Dr Chong has been incredibly supportive, kind and knowledgeable during my care. She always goes above and beyond, really listening to my hopes and outcomes for care, whilst balancing quality of life with trying to find the best treatment options.
- I always felt in excellent hands whilst under Dr Chong’s care. Her calm, professional and genuinely caring approach was very reassuring throughout my treatment. Can’t recommend enough!
- Dr Irene Chong has been outstanding. She is very genuine and cares very deeply for her patients wellbeing. I have felt honoured to have her as my primary consultant whom developed the care plan for myself. I have only extreme respect for her and hope she continues to help others.
- Dr. Chong is the most friendly, empathetic doctor I’ve had the pleasure of meeting. She’s been very helpful in both my mental and physical recovery with advice and support.
- Always greeted on time knowing that I will be given any news with sensitive professionalism, at the highest level of expertise, honesty and the space to ask questions. Clinic room always clean and my after clinic written summary sent. I always feel safe and well looked after.
- Dr Irene Chong and all the staff at the Royal Marsden are caring and go beyond to ensure you get the treatment and after care you need.
- Dr Chong has been amazing throughout my diagnosis and treatment. Always friendly, positive and approachable. Very clear about diagnosis and treatment path.
- Dr Chong is one of the most caring and understanding of consultants I have ever met. Whilst being an expert in her field, she puts the holistic wellbeing of the patient at the centre of thinking and approach.
- Dr Chong is an exceptional oncology consultant — warm, wise, compassionate, and deeply dedicated. Her care made a difficult time feel manageable. She listens, explains, and truly cares. I felt safe and supported every step of the way. She’s simply the best.
- From my very first visit to the Royal Marsden I have been treated with the utmost professionalism, friendliness, empathy and kindness following my cancer diagnosis and this has followed throughout my treatment and follow up consultations. Thanks to all the staff.