MBBS, BCH, BAO, MRCPCH, MSc
28 years of experience
Wallington, SM6 9BY
(+2 more)
17 connections in healthcare
Skill endorsed
by Prof. CK Sinha, Dr. Dunia Ismail
28 years of experience
Wallington, SM6 9BY
(+2 more)
17 connections in healthcare
Skill endorsed
by Prof. CK Sinha, Dr. Dunia Ismail
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Dr Michael Hii is a highly experienced Consultant Paediatric Gastroenterologist. He is currently the Clinical Hepatology Lead at Royal Alexandra Children's Hospital, a tertiary paediatric gastroenterology centre that accepts referrals from hospitals across Sussex. Prior to his current role, he held a locum Consultant Paediatric Gastroenterologist post at Chelsea and Westminster Hospital. He also has an MSc in Paediatrics from Birmingham University, which he received in 2003.
Dr Hii graduated from the highly prestigious Royal College of Surgeons, Ireland in 1998 and went on to obtain membership to the MRCPCH in 2001. He received excellent training in general paediatrics and gastroenterology at some of London's most reputable hospitals. These include Great Ormond Street Hospital, Royal Free Hospital as well as Chelsea and Westminster Hospital. Furthermore, he spent an additional two years working as Hepatology Clinical Fellow post CCT - an esteemed position which was based at King's College Hospital's Supraregional Liver Centre.
Dr Hii has extensive experience in both general paediatrics and gastroenterology, meaning he is able to accept referrals for patients needing help with either discipline. Recently, Dr Hii has set up the Paediatric Healthcare Centre at Wallington (South London). The centre has experienced paediatric specialists, nurses, dietician and child psychologist. It offers out-patient consultations and day procedures such as hydrogen breath tests (for lactose, sucrose, glucose, fructose or lactulose), blood tests, skin prick tests, food challenges and 24-hour pH studies.
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General Medical Council
No. 5202931
Royal College of Surgeons
Medicine
Graduated 1998
Royal College of Surgeons Ireland
MSc Paediatric - Birmingham University
New appointment
£200Follow-up appointment
£15052 Mollison Drive, Wallington, United Kingdom, SM6 9BY
Povey Cross Road, Horley, United Kingdom, RH6 0BB
London Road, North Cheam, Sutton, United Kingdom, SM3 9DW
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This summary was created by AI based on recent reviews
Dr. Michael Liong Mee Hii is consistently professional, thorough, and knowledgeable in his interactions with patients. He provides detailed investigations, clear care plans, and prompt action, frequently arranging allergy testing, blood tests, stool tests, ultrasounds, and abdominal scans. Dr. Hii effectively manages conditions such as stomach pain, bloating, belching, constipation, and reflux, often adapting his communication for children. Patient feedback consistently highlights his expertise in paediatric gastroenterology, addressing gastrointestinal symptoms including stomach pain, constipation, and food intolerance during consultations.
Doctor was great and helpful to make us feel comfortable and explained any concern we might have
Dr. Hii was very thorough in investigating my son's gastric problems and excellent at helping us find a solution. He was also friendly and very good at putting my child at ease. I'm more than happy to recommend him to others.
Dr Hii is excellent and clearly knowledgeable in his field. Made us feel very welcome and explained things fully without rushing us.
A great experience - discussed all the symptoms of my daughter at great length and possible next steps.
Our visit with Dr Hi was incredibly thorough. My son had been experiencing tummy aches for months, and despite multiple GP visits, we hadn’t been able to get to the bottom of it. From our very first appointment, Dr Hi carried out a detailed investigation and put together a clear care plan. He arranged allergy testing on the same day, along with prompt referrals for follow-up blood tests and an ultrasound. Dr Hi is clearly very experienced and knowledgeable—it really showed, and I felt completely in expert hands throughout. What really stood out was how listened to I felt. Rather than jumping to a quick conclusion, he took the time to explore all possible angles and rule things out properly to get to the root cause. My 8-year-old, who can struggle with anxiety, felt calm, relaxed, and even happy to return for our follow-up, which says a lot about the care and environment. The centre itself is lovely, and overall our experience has been brilliant.
Dr Hii has been amazing and supportive throughout my daughters treatment and we have made so much more progress with his guidance and professional support/ treatment
He was very professional but not massively friendly.

Thank you for your feedback about my approach, I truly value it. My aim is always to ask careful and detailed questions to build a clear understanding of each child’s situation. I appreciate that this may occasionally feel quite direct, hence less friendly. I will continue to be mindful of creating a warm and reassuring environment for families.
The doctor is very professional and kind. He listened carefully to my son and showed real understanding. He explained the situation very clearly and took action immediately—something that many other doctors and GPs at other practices haven’t done in over a year, despite my child having ongoing symptoms and us actively searching for someone who understands the problem. We also had some follow-up questions after our visit, and Dr. Hii kindly addressed them over the phone. Overall, we had a very positive experience at Paediatric Healthcare.
Very knowledgeable and kind towards my son, we had got nowhere with the nhs and with one visit already have an insight to my sons possible problem
Excellent gastroenterologist for children
12 Apr 2026
Prof. CK Sinha
Paediatric SurgeonDr Hii is a trustworthy colleague whom I have known for over 10 years. Dr Hii is an expert in his field, very conscientious and knowledgeable and always does right by the patient.
15 May 2024
Dr. Dunia Ismail
Paediatrician
Explore videos from Dr. Michael Liong Mee Hii explaining process of procedures and other important things you should know before choosing your provider.

10 November 2025

Chronic abdominal pain is defined as recurrent or persistent abdominal pain which lasts more than 3 months. It can be constant or intermittent which is descr...
08 March 2026
youtu.be

Fructose intolerance means your body cannot properly digest and process fructose properly, a naturally occurring sugar commonly found in fruits, some vegetab...
08 March 2026
youtu.be

Cow's Milk Protein Allergy, is an immune system reaction to the proteins (like casein and whey) found in cow's milk. Cow's milk protein allergy is very commo...
08 March 2026
youtu.be

Chronic constipation is a common condition that is featured by infrequent or difficulty in passing motions. Typically, constipation sufferers have fewer than...
08 March 2026
youtu.be
What are Dr. Michael Liong Mee Hii's reviews like?
Dr. Michael Liong Mee Hii's overall patient rating is 4.93 out of 5 stars on Doctify. This is based on 58 reviews.
What languages does Dr. Michael Liong Mee Hii speak?
Dr. Michael Liong Mee Hii speaks English
Where is Dr. Michael Liong Mee Hii located?
Dr. Michael Liong Mee Hii primarily practices at Paediatric Healthcare, located at 52 Mollison Drive, Wallington, United Kingdom, SM6 9BY
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Does Dr. Michael Liong Mee Hii accept new patients?
Dr. Michael Liong Mee Hii generally accepts new patients.
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