Nicholas Kalavrezos

Consultant Maxillofacial Head & Neck Reconstructive Surgeon

► Comprehensive management of head & neck cancer
► Reconstructive surgery of the face, head & neck
► Salivary gland & thyroid surgery
► Early cancer detection & diagnosis
► Corrective facial surgery and facial reanimation

Leading a World-Class Multi-Disciplinary Consultancy Team in Leading London Hospitals

"We strive to achieve the best surgical outcomes with emphasis on our patients' quality of life through an integrated, multi-disciplinary, team-based approach to treatment, supportive care and research"

Covid Information

Nick Kalavrezos provides a highly specialised service in head and neck surgery, cancer management and reconstructive surgery of the head, face and neck.

He leads multi-disciplinary teams of consultants at some of the best hospitals in London and has decades of experience in the clinical practice of Oral and Maxillofacial Surgery, post-traumatic head, face and neck reconstruction and aesthetic facial re-animation.

He treats conditions that range from advanced cancer and major accident trauma to those requiring minimally invasive surgical refinement procedures.

He is the Senior Surgeon in the Head and Neck Centre at University College London Hospital (UCLH), also the Lead Head and Neck Sarcoma Surgeon for the London Sarcoma Service. He is a founding member of the Centre for Reconstructive Surgery at UCLH where he is also a senior lecturer. He is Chair of the Head & Neck Team at The Harley Street Clinic.

His main research at UCLH focuses on the potential offered by tissue engineering to expand traditional micro-vascular flap surgery in the repair or replacement of tissue lost through major surgery, burns or other injury. 

He lectures widely and is Secretary-General and  President-Elect of the European Association for Cranio Maxillofacial Surgery. (EACMFS)


" I work with patients who are afflicted with facial cancer or who have suffered injury to the head, face or neck through accident or illness. Injury in this area affects us deeply. Our appearance, sense of identity, communications and most of our senses are focused there. The injuries can be life-changing.

As surgeons, we share the new, difficult world that our patients are in. Helping towards their recovery is life-affirming and constantly rewarding"

Crucial Factors That Make the Difference 

► Teamwork 

We use a team-based care model. This approach augments quality and safety by ensuring that the necessary skills and resources are available at the different stages of your care plan.

► Effective Management and Setting Performance Standards

Project management of all care plans entails a continuous appraisal of our adherence to standard markers of surgical excellence and medical procedures. Our results are monitored to maintain standards and to benchmark further improvements.

►  Specialisation Contributes to a Better Outcome

The frequency that your team has carried out your required treatment is a major positive factor in your own care plan. We are a high-volume consultancy with a world-wide patient base, specialising exclusively in disorders of the face, head and neck. Repeated studies show that specialised, high-volume consultancies such as ours obtain better results than those where the same procedures are carried out less often. This difference in patient outcome between practices is more marked when comparing the success rate for newer and more complex procedures.

► Creating Confidence 

The planning for your care is done in close consultation with yourself. Good communication engenders confidence and trust, you should feel able to question your team. We have a moral and legal requirement to be pro-active in keeping you fully informed. In this time of conflicting claims and information overload, the requirement extends to providing our opinion and advice on alternative treatments  which may be offered elsewhere.

► Working against Cancer

Most patients that we see do not have cancer. Yet early diagnosis of any lumps or bumps is still the most important factor in ensuring a favourable outcome.

Patients under our care benefit from the ongoing research into early cancer detection and care at UCLH, a major research center with one of the largest programs for cancer treatment in the UK. 

After diagnosis, we determine whether surgery is necessary. If cancer is detected early enough, surgery may be avoidable. A careful assessment of non-surgical treatment options is always done in the light of the latest treatment available. 

► Resources

We have access to the resource-pool of a world-class research centre, several leading London hospitals and a global private health care organisation. This helps us to adapt readily to the evolution of research and exploit the latest developments that are relevant to our patient's needs

► Translational Research 'Bench to Bedside' 

We participate in and monitor research in relation to the range of specialties within our own care team. The “bench to bedside” bridge focuses on new developments with the aim of shortening the time taken for  latest improvements to reach the patient. 

► Avoiding or Reducing Surgery 

The progress of research at UCLH and other major centers is astonishing. Advances in imaging, stem cell technology, tissue engineering, robotics and gene editing are very relevant to the early detection and treatment of cancer. As these technologies advance, treatment options increase and therefore reduce the requirement for major surgery. Consequently healing time is also reduced.

► Refined Facial and Head Surgery

We are constantly refining our surgical techniques as the need for major surgery decreases. The declining need for major surgery drives the development and implementation of less invasive surgical techniques. This trend towards less invasive surgery (often with the help of robots) allows the increasing use of cosmetic plastic surgery. 

► University College London Hospital

Our clinical practice and research are both closely tied to UCLH (right) where Nick is the Senior Surgeon in the Head and Neck Centre. Besides being a world-class research center, UCLH is also a major teaching hospital. It is also our NHS base. (British National Health Service)


The Hospitals

London's best hospitals provide world-class care with warmth, compassion and dignity for the individual.




Conditions that we Treat

Detailed descriptions of medical conditions and very graphic illustrations of surgical procedures are not included on this site. 


► Maxillofacial Trauma

Surgery of the head and neck is demanding. The many vital functions in this part of the body, such as speech and swallowing have to be protected and the reconstructive needs are complex. Surgery is most often concerned with replacing and repairing tissue where a tumour has been removed or where injury was sustained.

The area is comparatively small but complex, containing a multitude of organs, functions and nerve networks. Maxillofacial trauma is a term for any injury, congenital defect, disease or deformity in any part of this area. Although treatment is often with surgery, there is an increasing number of non-surgical treatment options available.

Typical causes of major trauma are cancer, burns, skull and jaw fractures from active sports, violence or accidents.

Minor trauma can include non malignant growths, early stage cancer, problems referred by your dentist such as difficult wisdom teeth and jaw infections, minor lesions, the removal of minor lumps and bumps or chronic infections of the ears or sinus.

Plastic surgery techniques can now often be used with minor trauma to provide the best cosmetic result possible. 

►Reducing Surgery, Moving to Day Surgery

One of Nick Kalavrezos' research interests lies in refining minimally invasive and micro-surgical procedures and the use of robotic surgery to preserve and restore outward appearance while repairing or preserving function. Micro-surgical procedures aided by robots are particularly useful in  endoscopic surgery for thyroid, salivary and pituitary glands.

With the development of advanced medical devices and biomaterials, some conditions that previously required hospitalisation are now being treated with minimally invasive procedures in a day-surgery setting.

Close-up of squamous cell carcinoma (skin cancer) on the lip in a 68 year old male patient. A free tissue flap is used to repair the area once the cancer treatment has been completed.
From  'Oral Cancer: Update for the Dental Team'  Kalavrezos N, Scully C.

► Some Procedures and Conditions

Oral/Head & Neck Cancer

Reconstructive Microvascular Surgery including perforator flaps

Secondary Corrective Surgery including Lipofilling for facial asymmetry

Facial Fractures & Trauma

Swallowing Disorders

Face lift access for Neck Dissection

Salivary Gland Diseases, Parotidectomy

TMJ Disorders

Salivary Gland Diseases, Parotidectomy

Thyroid Surgery

Skin Cancer Removal and Skin Flap Repair


Sinus surgery and Tonsillectomy


Facial Nerve Monitoring

The Temporomandibular Joint (TMJ) is one of the most complex joints in the body. It lets the jaw open, close and move side to side. 

TMJ disorders can manifest as pain that is felt when moving the jaw. Other symptoms can include headaches or pain around the ear and cheeks.

Consultation by Video or Phone

This is available to all our patients during this time. 

You can find out more by contacting The Practice Manager. We will then be in touch to provide further information.

Find us in London

Appointments & All Enquiries


Miss Amanda Orie
Tel:   +44 (0)7411 456568
Fax: +44 (0)20 7034 8276


London Head & Neck Ltd
The Harley Street Clinic Diagnostic Centre
16 Devonshire Street
London W1G 7AF

Consultation Venue & Times

Location: The Harley Street Clinic Diagnostic Centre
16 Devonshire St, Marylebone, London, United Kingdom, W1G 7AF

Consultation Times: Tuesday and Thursday: 11.00am – 18.00pm (approximately)

Consultations are occasionally arranged at other times.

An online form for contacting Nick Kalavrezos is available here

Virtual Tour (Google) - click the photo

Admin & consultations: The Harley Street Clinic Diagnostic Centre, 
16 Devonshire St, Marylebone, London, United Kingdom, W1G 7AF  

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London Head & Neck Ltd