Co-Founder IBC, Director: IBC Oxford Global Education and IBC Oxford World Congress

Mr. Khwaja is Consultant Upper GI/Bariatric Surgeon at Chelsea and Westminster Hospital. London and Director of the IBC Oxford 2023 World Congress

He was educated at Christ Church, University of Oxford and Royal Free Medical School, University of London. At medical school he was awarded  1 scholarship, 21 Prizes, 4 Distinctions and was Proxime Accessit to the 1997 University Gold Medal.

In 1998 he started his surgical training in General/Vascular Surgery at the Royal Free Hospital under Professor George Hamilton CVO, former Serjeant Surgeon to the Queen. In 1999 he continued his training at the John Radcliffe and Churchill Hospitals, University of Oxford training in General Surgery/Renal Transplantation & Urological Surgery under Professor Sir Peter Morris AC FRS, Past President of the Royal College of Surgeons of England (2001-2004) and Professor David Cranston. From 2001 – 2004 he undertook a DPhil (PhD) based jointly at the Wellcome Trust Centre for Human Genetics, University of Oxford and the Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford funded by the Royal College of Surgeons of England Research Fellowship and British Heart Foundation Studentship. During this period he was also appointed Honorary Vascular Surgery Registrar at the John Radcliffe Hospital.

Following his period of research he undertook Higher Surgery Training in General Surgery in Northwest London and specialised in Advanced Laparoscopy/Upper Gasrointestinal & Bariatric Surgery at Chelsea & Westminster Hospital, Charing Cross Hospital, Royal Marsden Hospital and Luton and Dunstable Hospital. During his 5th year of surgical training and after competitive interview in the United States he was matched to the 1 year Clinical Fellowship in Minimally Invasive/Bariatric Surgery at the Cleveland Clinic, Ohio, USA from 2009 – 10 and was trained in gastric bypass, sleeve gastrectomy, revisional bariatric surgery and therapeutic endoscopy by Professors Phil Schauer, Stacy Brethauer, Tomasz Rogula and Matthew Kroh. In 2011 he undertook a second Fellowship in Advanced Laparoscopy/Bariatric Surgery at Phoenix Health, Liverpool, UK gaining additional experience in gastric bypass, sleeve gastrectomy, duodenal switch and revisional bariatric surgery under Professor David Kerrigan, Mr. Shafiq Javed and Mr. Conor Magee.

In 2012 he was appointed Consultant Bariatric Surgeon at Phoenix Health based at University Hospital Aintree, Liverpool and Consultant General/Upper GI Surgeon at Wirral University Hospital NHS Trust.

Clinical Specialisation

Bariatric Surgery (Roux-en-Y gastric bypass, sleeve gastrectomy, revisional bariatric surgery, gastric banding since 2008)

Diagnostic and Therapeutic Upper GI endoscopy (including intragastric balloon insertion) since 2008

Laparoscopic complex foregut surgery (Giant hiatus hernia repair, gastric volvulus, cardiomyotomy, fundoplication) since 2009

Laparoscopic benign biliary surgery since 2007

Emergency gastrointestinal surgery (including all aspects of emergency benign and malignant colorectal surgery)

Clinical Research

Mr. Khwaja has BSc and DPhil (PhD) degrees from the University of London and University of Oxford respectively.

He has given/contributed to over 70 national and international research presentations and has given 30 invited presentations. He has 28 publications to date in journals such as Obesity Surgery, SOARD, Canadian Journal of Surgery, American Journal of Clinical Pathology, British Journal of Urology, Journal of Bone and Joint Surgery, European Journal of Vascular and Endovascular Surgery & BMJ Case Reports. He has written 6 book chapters in the field of bariatric and metabolic surgery.

Postgraduate Teaching

Co-Founder & Co-Director - International Bariatric Club ( (2009 – current)

Director: IBC Global Surgical Education (2016 – present)
IBC Symposia at:

IFSO World Congress New Delhi 2012, Istanbul 2013, Montreal 2014, Vienna 2015

IFSO European Chapter Congress Barcelona 2012

Chelsea & Westminster Bariatric Surgery Emergencies Course 2016

Mexican Society of Obesity and Metabolic Surgery Annual Congress 2016, 2017

Frankfurter Obesity Meeting 2016

13th Egyptian Society of Bariatric Surgery (ESBS) Annual Congress 2016

International Congress in Minimally Invasive and Robotic Surgery: Buzios, Brazil 2017

Chinese Society of Metabolic and Bariatric Surgery Annual Congress 2017

Turkish Obesity Surgery Society Annual Congress 2017

Director – IBC Public Relations (2012 – current)

Administrator: IBC Facebook Page (2015 – current)

Founder and Chief Editor – IBC Journal (2012 -2015)

Faculty & Scientific Advisory Board– IBC Hot Topics in Bariatrics (2015 – current)

Visiting Lecturer:

Bariatric Surgery, University of Chester, Chester, United Kingdom (2011 – 2013)

Clinical Teacher in Surgery:

3rd & 5th Yr. Medical Students, University of Liverpool Medical School (2013-current)

3rd & 6th Yr. Medical Students, Imperial College Medical School, London (2004-5, 2010-11)

PGY 3 – 5     Surgery Residents, Cleveland Clinic, Ohio, USA (2009-10)

4th & 6th Yr. Medical Students, John Radcliffe Hospital, University of Oxford (2002-04)

Advisory/Management Experience

IFSO Communications Committee Member (2014 – 2017)

Co-Admin IFSO Facebook Page (2016 – 2017)

IBC (2009 – current)

Reviewer: Surgery for Obesity and Related Diseases (SOARD) (2016 – current)

British Medical Journal Case Report (BMJ Case Reports) (2017– current)

Specialist Advisor - National Institute for Health and Clinical Excellence (NICE):

General & Bariatric Surgery (2012 – current)

Laparoscopic gastric plication for the treatment of morbid obesity (IP988) 2012

Endobarrier gastrointestinal liner for treatment of obesity and diabetes (IP986) 2012

Peer-review for India RSBY pathways: uncomplicated gallstone disease & acute appendicitis 2014

Academic Scholarships/Prizes/Medals/Certificates of Merit

Postgraduate Awards 


Royal College of Surgeons of England Research Fellowship

British Heart Foundation PhD Studentship


Christ Church College, University of Oxford PhD Travel Award

John Radcliffe, Oxford Medical Research Fund PhD Travel Award

British Heart Foundation PhD Travel Award

Royal College of Surgeons of England Travel Award


Christ Church College, University of Oxford PhD Travel Award

John Radcliffe, Oxford Medical Research Fund PhD Travel Award

British Heart Foundation PhD Travel Award

Royal College of Surgeons of England Travel Award



B Braun Aesculap Scholarship (awarded by the ALSGBI)

Ethicon Endosurgery Travel Scholarship (awarded by the RCS (Eng)

2012                 Poster of Distinction (P-143) at the American Society of Metabolic and Bariatric Surgery Meeting 2012

Medical School Awards


Mabel Sharman Crawford Scholarship for Performance in First Year Richard Keene Prize in First Year Subjects

Winifred Ladds Prize in Physiology

Annie E. Brooks Prize in Biochemistry

Certificate of Merit in Anatomy


Mrs. George M. Smith Prize in Second Year Subjects

Walter Culverwell Prize in Anatomy

Edward & Helen Hanson Prizes in Physiology

Lord Rank Prize in Biochemistry

Edith Pechey Phipson Prize in Pharmacology

Certificate of Merit in Pathology

Certificate of Merit in Psychology


Wolfson BSc Award (sponsored by the Wolfson Foundation)

BSc Immunopathology Prize (donated by Ciba-Geigy)


Glaxo Wellcome/Blackwell Science Prize- Performance in 1st Clinical Yr.


Wilfred Francis White Prize in Neurology

1997 (Final Year)

Proxime Accessit to the University Gold Medal

Distinctions: Surgery, Medicine, Clinical Pharmacology, Pathology

Emlyn Williams Prize & Gant Medal in Surgery

Natalie Bogdan Prize & Medal in Medicine

Glynn Morgan Prize & Medal in Cardiology & Chest Medicine

Kenneth Hill Memorial Prize & Medal in Pathology

Bunzl Prize & Medal in Psychiatry

Esther Francis White Memorial Prize - For Distinctions in Finals

Sarkany Prize in Dermatology

Helen Webb Prize in Children’s Diseases

London Lock Hospital Memorial Prize in Venereal Diseases

Certificate of Merit in Clinical Pharmacology and Therapeutics