Dr Gary McKay – Colorectal Surgeon


Dr Gary McKay is a Colorectal Surgeon from Mater Private Hospital (a facility of St Vincent's Health Australia) on Sydney's Lower North Shore who specialises in rectal cancer surgery.  He is a fellow of the Royal Australasian College of Surgeons (RACS), a member of the Colorectal Surgical Society of Australia and New-Zealand (CSSANZ), and is accredited with the Gastrointestinal Enterological Society of Australia (GESA) for training in gastroscopy and colonoscopy.

Dr McKay is committed to providing you with the latest safe, minimally-invasive surgical techniques, including endoscopic surgery, and transanal endoscopic microsurgery (TEMs & TAMIS). He is also a keen advocate of key-hole colorectal surgery. Dr McKay also performs robotic surgery using the da Vinci robot for low rectal cancers and rectopexy with this new technology allowing for better 3D vision, and more precise surgical technique.

Dr McKay has a “no-gap” policy for patients having direct-access booking of endoscopy and colonoscopy. 



  • Bach. Med (Newcastle).
  • FRACS.
  • Member CSSANZ

Professional Memberships

Specialty Interests

  • Colonoscopy and Gastroscopy.
  • Endoscopic surgery (EMR and ESD).
  • Colorectal surgery.
  • Key Hole (Laparoscopic and Robotic) surgery.
  • Haemorrhoids.
  • Perianal Fistulae.
  • Key Hole Inguinal Hernia Repair.


  • Mater Private Hospital (a facility of St Vincent's Health Australia).

Consulting Rooms

  • Shop 1, 38 Pacific Highway, St Leonard’s NSW 2065.
  • Suite 6, Westmead Private Hospital, Cnr Mons and Darcy Road, Westmead, NSW 2145.
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Dr Gary McKay