
Dr Michael Hii
Professional statement
Dr Michael Hii is an esteemed consultant paediatric gastroenterologist with extensive expertise in his field. He currently serves as senior gastroenterologist at the Royal Alexandra Children's Hospital, a leading tertiary paediatric gastroenterology centre that accepts referrals from across Sussex and Surrey.
Before this role, he held a locum consultant paediatric gastroenterologist position at Chelsea and Westminster Hospital. Dr Hii notably earned an MSc in paediatrics from Birmingham University in 2003, further solidifying his advanced knowledge in the field. A graduate of the prestigious Royal College of Surgeons in Ireland in 1998, Dr Hii achieved MRCPCH membership in 2001.
He honed his skills in general paediatrics and gastroenterology at some of London's most reputable hospitals, including Great Ormond Street Hospital, Royal Free Hospital, and Chelsea and Westminster Hospital. Additionally, he dedicated two years as a Hepatology Clinical Fellow post-CCT at the Supraregional Liver Centre at King’s College Hospital, gaining invaluable experience in paediatric liver conditions.
Dr Hii’s expertise spans both general paediatrics and gastroenterology, enabling him to manage a wide range of conditions. He established the Paediatric Gut Investigation Clinic (PGIC) in 2017 in collaboration with Paediatric Diagnostics. This unique clinic offers a comprehensive “one stop clinic” offering various gut investigative tools such as hydrogen breath test, hydrogen/methane breath test, 24 hour PH study, skin prick testing, video capsule endoscopy and ultrasound. The clinic is supported by a multidisciplinary team, including nurses, paediatric dietician, and consultant paediatric radiologists. This “one stop clinic” allows quicker diagnosis and treatment plans.
Additional services include endoscopies, radiological investigations such as MRI small bowel scans and transit marker studies (provided by nearby Spire Gatwick Park Hospital) and phlebotomy services for patients of all ages. Dr. Hii’s dedication to providing exceptional care and his innovative approach to paediatric gastroenterology have established him as a trusted expert in his field. His commitment to advancing diagnostic and treatment options ensures patients receive comprehensive and compassionate care tailored to their needs.
Clinics

Paediatric Healthcare
Central London, 52 Mollison Drive, London, SM6 9BYMedical insurances accepted
Credentials
Professional experience
- 28 years of experience
- Consultant Paediatric Gastroenterologist, Paediatric Diagnostics (present)
Subspecialties
- Milk allergy
- Endoscopy (gastroscopy and colonoscopy)
Professional memberships
- Royal College of Paediatric and Child Health
- British Society of Paediatric Gastroenterology, Hepatology and Nutrition
Education
- MBBS, BCH, BAO, Royal College of Surgeons, Dublin (1998)
- MRCPCH, Royal College of Paediatrics and Child Health (2001)
Positions in organisations
- Senior Consultant Paediatric Gastroenterologist at Royal Alexandra Children's Hospital (present)
Languages spoken
- Chinese (mandarin)
- English
Reviews
- Would you recommend this doctor?
- Treatment of the doctor
- Treatment of the staff
- Waiting time
- Condition of facilities
- Very knowledgeable and friendly doctor. He's been very helpful in resolving a chronic medical issue my son has suffered withDoctor's response -Thank you for your kind comment. I'm glad to hear that your son is better.
- My son was diagnosed with a wheat allergy by Dr Hii on day 1. They were very thorough with the tests to find out what is wrong. This was all done in 1 day. The follow up appointments included blood tests to check his levels. Absolutely fantastic service. A*****Doctor's response -Hello, we always try to carry out appropriate investigations as soon as possible. I'm glad your son got a quick diagnosis as a result of this. Thank you very much for taking the time to leave a review.
- Dr Hii was very very thorough in his investigations. We appreciate his equally thorough feedback and actions taken. Excellent care provided. Thank you, Doctor.Doctor's response -Hello, thank you for your kind words
- Dr Hii was really helpful to us and has helped my little boy massively by advice and a prescription all done via a video consultation. My little boy has had issues for years and I’m so glad I spoke to Dr Hii. I would 100% recommend him 😊👍Doctor's response -Hello, I'm glad I could help with your son's ongoing issues and glad to hear he is a lot better. Thank you for your kind words.
- The doctors and nurses are very welcoming & makes us feel at ease.They are very good in dealing with children's worries. Dr.Hii was able to explain to my 10yr old daughter whats happening to her in a way that she can understand.He treated her constipation and monitor her progressDoctor's response -Hello, thank you for your kind words. I hope your daughter continues to do well
- Dr Hii was kind, gentle and took the time to really understand what had been happening with our daughter. We felt heard and were confident in his professional views. After implementing his advice, we saw great changes in our daughter’s health!Doctor's response -That's great to hear about your daughter's health. Thank you very much for your kind words.
- Dr Hii has been so thorough in his approach to my son’s stomach pains. He has explored many avenues I wouldn’t have considered. I am so pleased we have found him. He is kind and gentle in his manner which is very reassuring when it comes to a nervous child.Doctor's response -Hello, thank you very much for your kind words.
- Our daughter has received excellent support and treatment. We cannot thank you enough, in that she now feels she is being listened to and thankfully is feeling better too. Thank youDoctor's response -That's great to hear that your daughter is feeling a lot better. We always want our patients to feel heard. Thank you for your kind words.