Pennant Hills Gastroenterology
10 Ramsay Road
Pennant Hills NSW 2120
- Phone
- (02) 9875 2311
- info@phgastro.sydney
- Website
- phgastro.sydney
Appointments are booked through the practice directly. Please have your referral ready when you call.

About this location
Pennant Hills Gastroenterology is a single-specialty practice, which means the staff and the systems are built around gastroenterology rather than shared across a general clinic. For patients in the Hornsby Shire, on the Upper North Shore and on the Central Coast it is usually the closest of the four locations.
Procedures for patients seen here are most often performed at Pennant Hills Day Surgery on Pennant Hills Road, which is a separate building about a kilometre from the consulting rooms on Ramsay Road rather than the same address. Norwest Private Hospital and Macquarie University Hospital are also available, and the choice is made at the consultation.
Consulting days
Consulting days vary between the four locations and change from time to time. Phone the rooms for the current schedule and the next available appointment. Reception is open Monday to Thursday, 8am to 5pm, and on Friday, 8am to 4pm. Phones are answered until 4.30pm Monday to Thursday.
Where procedures are performed
Colonoscopy, gastroscopy and therapeutic endoscopy are performed at:
- Norwest Private Hospital
- Macquarie University Hospital
- Pennant Hills Day Surgery
Patients seen at any of the four consulting locations can be booked at any of these three, so the choice is about what suits you rather than about where you were seen. A/Prof Kariyawasam is a visiting medical officer at Norwest Private Hospital and at Macquarie University Hospital. There is more on what a colonoscopy involves and what it costs on its own page.
Getting here
Parking, transport and access

The map and directions open in Google Maps. Nothing loads from Google until you ask for it.
Area served
Patients seen at Pennant Hills
Referrals are welcome from any suburb. Patients seen at this location most often come from:
What is seen here
General gastroenterology and liver disease, with a particular focus on inflammatory bowel disease and on preventing bowel cancer. New diagnoses, second opinions and complex or treatment-refractory disease are all welcome. Urgent inflammatory bowel disease, rectal bleeding and positive bowel screening referrals are prioritised.
Common questions about this location
Where will my colonoscopy be done if I am seen at Pennant Hills?
Most often at Pennant Hills Day Surgery, at 361 Pennant Hills Road. Worth knowing that this is a separate building from the consulting rooms, which are on Ramsay Road about a kilometre away, so the two appointments are at different addresses. Norwest Private Hospital and Macquarie University Hospital are equally available, and patients seen here can be booked at any of the three.
What are the opening hours?
Reception is open Monday to Thursday, 8am to 5pm, and on Friday, 8am to 4pm. Phones are answered until 4.30pm Monday to Thursday and 4pm on Friday.
Do I need a referral, and how long does it last?
Yes. A GP referral lasts twelve months and a specialist referral three months. Pennant Hills Gastroenterology also accepts open-access procedure referrals, where a GP refers directly for a colonoscopy or gastroscopy without a prior consultation, which suits straightforward cases such as a positive screening test in someone otherwise well.
Is there parking, and how far is the station?
There is parking on site, with street parking on the surrounding roads. Pennant Hills station on the T9 Northern line is a short walk, with direct services from Hornsby, Epping and the city.
Which suburbs do most patients come from?
Mostly the Hornsby Shire and the Upper North Shore: Hornsby, Thornleigh, Normanhurst, Beecroft, Cherrybrook, West Pennant Hills, Wahroonga, Carlingford and Epping. For patients in that area it is usually the closest of the four locations.
What makes a single-specialty practice different?
The staff, the systems and the day surgery are all built around gastroenterology rather than shared across a general clinic. In practice that means the people answering the phone know what a bowel preparation involves, and the unit runs gastroscopy, colonoscopy and capsule endoscopy lists rather than fitting them around other specialties.
Make an appointment
Appointments are booked through the rooms directly. Have your GP referral ready when you call or ask your GP to send it ahead. Urgent inflammatory bowel disease, rectal bleeding and positive bowel screening referrals are prioritised.
Norwest & Rouse Hill (02) 8530 1800 Pennant Hills (02) 9875 2311 Macquarie Park (02) 9812 3880