Mr Chatzikonstantinou is a highly experienced Consultant Upper Gastrointestinal (UGI) and General Surgeon practising at London Independent Hospital and Blackheath Hospital, as well as holding a substantive NHS Consultant position at University Hospital Lewisham. With more than 15 years of surgical experience and a strong commitment to delivering outstanding patient care, he has established an excellent reputation for the diagnosis and treatment of a wide range of upper gastrointestinal and general surgical conditions.

A specialist in minimally invasive (laparoscopic or keyhole) surgery, Mr Chatzikonstantinou has performed over 1,000 laparoscopic procedures throughout his career. His extensive expertise includes the surgical management of gallbladder disease, abdominal wall hernias and acid reflux, helping patients across both South and East London access the latest evidence-based treatments and achieve the best possible outcomes. His approach combines technical excellence with personalised care, ensuring that every patient receives a treatment plan tailored to their individual needs and circumstances.

Mr Chatzikonstantinou undertook his surgical training in London, gaining experience at several of the capital’s most prestigious teaching hospitals, including King’s College Hospital and St Thomas’ Hospital. During this period, he developed advanced surgical skills across a broad spectrum of upper gastrointestinal and general surgical conditions, working alongside leading specialists in the field. His dedication to developing specialist expertise led him to complete a prestigious Royal College of Surgeons Senior Clinical Fellowship in Benign Upper Gastrointestinal and Bariatric Surgery at University College London Hospital (UCLH), one of the UK's leading centres for complex gastrointestinal and weight-loss surgery.

Alongside his clinical training, Mr Chatzikonstantinou has demonstrated a strong commitment to academic excellence. He holds a Master’s degree in Surgical and Interventional Sciences from University College London (UCL), further strengthening his understanding of modern surgical techniques, innovation and research. His academic background supports his commitment to practising evidence-based medicine and ensuring patients benefit from the latest advances in surgical care.

In addition to his clinical work, Mr Chatzikonstantinou is actively involved in advancing surgical standards both nationally and internationally. He is a regular speaker at professional meetings, national conferences and international congresses, where he shares his expertise and contributes to discussions on developments within upper gastrointestinal, laparoscopic and bariatric surgery. His passion for education and collaboration extends beyond the UK through his involvement with the European Chapter of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO-EC). As a member of the organisation’s Communications and Development Committee, he plays an important role in supporting professional engagement, strengthening international networks and promoting the exchange of knowledge and best practice among surgeons worldwide.

At University Hospital Lewisham, Mr Chatzikonstantinou also serves as the Lead for Clinical Governance. This senior leadership role reflects his commitment to maintaining the highest standards of patient care, safety and clinical effectiveness. He is responsible for overseeing quality assurance initiatives, monitoring patient outcomes and supporting continuous improvement across the surgical department. Through this work, he helps ensure that patients receive safe, high-quality care delivered in line with the latest clinical standards and best practices.

Known for his approachable manner, attention to detail and patient-centred philosophy, Mr Chatzikonstantinou is dedicated to helping patients make informed decisions about their health. By combining extensive surgical expertise with compassionate care, he strives to provide excellent outcomes and a positive patient experience at every stage of treatment. His commitment to clinical excellence, innovation and continuous improvement has made him a trusted specialist for patients seeking expert upper gastrointestinal and general surgical care.

Clinical Interests

• Laparoscopic cholecystecty
• Management of gallstones
• Antireflux surgery
• UGI endoscopy (gastroscopy/OGD)
• Abdominal wall hernia surgery (umbilical, epigastric, incisional, inguinal, femoral)

• Royal College of Surgeons
• British Obesity & Metabolic Specialist Society (BOMSS)
• International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
• British Hernia Society (BHS)
• European Hernia Society (EHS)
• The Upper Gastrointestinal Surgical Society (TUGSS)