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Dr Aldenb Lorenzo

Dr Aldenb Lorenzo

BSc (Hons), MBBS, PhD, FRACP


  • General Surgery
  • Hepatobiliary & Pancreatic Surgery
  • Obesity Surgery
  • Colonoscopy
  • Gastroscopy



Dr Aldenb Lorenzo is an upper gastrointestinal, bariatric/weight loss and general surgeon. He finished his general surgical training in the Sydney West Area Health Service hospitals with Westmead Hospital as the training institution. He was awarded his fellowship in general surgery (Fellow of the Royal Australasian College of Surgeons, FRACS) in 2016. He then became the Clinical Superintendent in Blacktown and Mt Druitt Hospitals for two years.

After this he went through a post-fellowship year of rigorous training in upper gastrointestinal surgery in St. Vincent's Hospital in Sydney with focus on complex hiatus hernia repair in lung transplant patients. He furthered his training with the prestigious Australia and New Zealand Gastric and Oesophageal Surgery Association (ANZGOSA).

He spent a year of his ANZGOSA training in the Bariatric Unit in Auckland City Hospital, New Zealand, sharpening his skills in bariatric/obesity surgery to add to his general surgical repertoire. He invested the next two years in Bankstown-Lidcombe and Liverpool hospitals for upper gastrointestinal oncology training (oesophagus, stomach, pancreas, liver cancer). He is a surgical educator with a passion for research and teaching. He is well known for his comprehensive and compassionate service with patients at centre stage.

In addition to being accredited and working out of Sydney Adventist Hospital, Dr. Lorenzo also operates at: Norwest Private Hospital, Lakeview Private Hospital, Westmead Private Hospital, Campbelltown Private Hospital, Sydney Southwest Private Hospital, and Bankstown-Lidcombe Hospital.

Areas of interest:

  • Upper Gastrointestinal Surgery (Malignant & Benign Oesophagogastric/Pancreaticobiliary conditions).
  • Hiatus Hernia & Reflux Surgery.
  • Bariatric/Weight loss surgery (Laparoscopic Roux En Y Gastric Bypass/Sleeve Gastrectomy).
  • Revisional Bariatric Surgery.
  • General Surgery.
  • Endoscopy/Colonoscopy.


  • Sydney Adventist Hospital