Our Team

Our Team2022-03-16T14:41:20+11:00

Dr Andrew Pearson

BAppSc (Phty), MBBS (Hons), FRACGP, FRACS

General, Hepatobiliary, Pancreatic & Bariatric surgeon

Northern Bariatrics 005 1Associate Professor Andrew Pearson is a specialist General Surgeon with an interest in acute general surgery, trauma surgery and surgery of the liver, pancreas and biliary tract as well as bariatric surgery.

He is also trained in gastroscopy and colonoscopy.

A/Prof Pearson has attained degrees in both Physiotherapy and Medicine from the University of Sydney and completed his Fellowship with the Royal Australasian College of Surgeons through Royal North Shore Hospital. A/Prof Pearson completed a year of fellowship training in liver, pancreas and biliary surgery at Royal North Shore and has also attained a Fellowship in General Practice from the Royal Australian College of General Practitioners.

Associate Professor Pearson’s areas of specific interest include acute general surgery as well as surgery of the liver, pancreas and gallbladder. He also has a specific interest in abdominal wall hernia repair as well as bariatric surgery.

Associate Professor Pearson has appointments at the Northern Beaches Hospital, Hornsby Ku-RingGai hospital and the Sydney Adventist Hospital. Associate Professor Pearson is an active member of the Australian Defence Force and has deployed on multiple occasions to both military conflicts and on humanitarian assistance missions.

Andrew is a busy father of three children and a sporting enthusiast. He considers one of his biggest achievements having completed an ironman triathlon however now describes himself as a part time runner. Associate Professor Pearson consults at the Northern Beaches hospital and in Hornsby.

Dr Christos Apostolou

MBChB, MMed (Surg), Cert. Gastro (SA) Surg., FCS (SA), FRACS

General, Upper Gastrointestinal, Pancreatic, Liver & Bariatric surgeon

Northern Bariatrics 002 1

Dr Christos Apostolou an experienced is Specialist Upper Gastrointestinal Surgeon. He holds expertise in upper gastrointestinal, liver, biliary, pancreatic and bariatric surgery through minimally invasive (robotic/laparoscopic) and open approaches.

Christos undertook his surgical training in Cape Town with admission to the South African College of Surgeons in 2003, subsequently completing 5 years of fellowships in Upper GI/HPB/ Trauma Surgery. He was admitted as a Fellow of the Royal Australian College of Surgeons in 2012, after emigrating with his family to Australia.

He holds a Masters in Surgery from the University of Cape Town and the Certificate of Surgical Gastroenterology from the S. African College, maintaining a strong interest in research with numerous and ongoing peer review publications. Christos is a Conjoint Senior Lecturer at UNSW, Clinical Lecturer at Macquarie University, and a Clinical Senior Lecturer with Sydney University.

Currently holds the position of clinical lead in Upper GI Surgery at the Sydney Adventist Hospital, previously acting as department head in Upper GI Surgery in Bankstown Hospital and served as the GSA/RACS hospital training supervisor on the NSW committee. He has served on the board of the ANZHPBA and a member of ANZGOSA, ANZMOSS, GSA and the AMA.

He holds expertise in Upper GI/pancreatic/liver oncology surgery, gallbladder and anti-reflux surgery, laparoscopic hernia surgery and advanced endoscopy/ERCP.

Christos is an accredited robotic surgeon and mentor in Upper GI Surgery across both systems currently in use in Australia (da Vinci & Versius), having commenced his robotic “journey” at the Yonsei University, Severance Hospital, Seoul south Korea in 2015.

Dr Apostolou regularly consults and operates at the Sydney Adventist and Northern Beaches hospitals and is additionally accredited at Bankstown-Lidcombe, Norwest and Macquarie University Hospitals. (Further info: www.gastrosurgery.com.au)

Dr Carla Gillespie


General, Upper Gastrointestinal & Bariatric surgeon

Northern Bariatrics 001 1Dr Gillespie is an Upper Gastrointestinal and Bariatric surgeon based out of the Northern Beaches Hospital.

Dr Gillespie studied Medicine at Newcastle University and completed her General Surgery Fellowship with the Royal Australasian College of Surgeons. Following this she completed a year at Royal North Shore Hospital before being selected for the Australia & New Zealand Gastric & Oesophageal Surgery Association (ANZGOSA) fellowship. Two further years were spent at St Vincent’s Hospital in Melbourne and Concord Hospital in Sydney.

Dr Gillespie has a special interest in the treatment of stomach and oesophageal cancer, reflux surgery, hiatus hernia repair and bariatric surgery (including sleeve gastrectomy, gastric bypass and revision procedures). She is also trained and accredited in endoscopy.


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