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Dr Manjunath Siddaiah-Subramanya


Precision Upper GI Surgery

‘Providing precision and personalised pathways towards excellent care'
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Image of Dr Manjunath Upper GI Surgeon Sydney NSW
“I treat my patients with the highest level of care that I would expect my family members to be treated by a specialist. I pride myself in supporting patients in their journey all the way from diagnosis, pre-habilitation and treatment to follow-up, providing them with the chance to return to the community at their best.”

About Dr Manju

Upper GI Surgeon, Sydney, NSW

Senior Conjoint Lecturer, Western Sydney University.
External faculty, University of Melbourne.
Chair of Sydney Upper GI Surgical Society.

Dr Manju trained as a specialist general surgeon in Queensland, Australia after his move from the UK.

He then undertook further sub-speciality training in Upper GI surgery (through the national board of upper GI training- AANZGOSA) at Perth (Bilio-pancreatic and Oesophago-gastric) and Austin, Melbourne (Bariatric and Oesophago-gastric), including a senior fellowship in Upper GI cancer surgery at Queen Elizabeth University Hospital, Birmingham, UK (a high volume European centre).

Learn more about Dr Manju

Areas of Expertise

Find out more about Dr Manju’s expertise.

Are you in Sydney or South-Western Sydney, NSW, and seeking expert care for Upper GI disorders? Look no further than Precision Upper GI Surgery. Led by Dr Manju, our team specialises in a range of procedures including Gastric and Oesophageal cancer treatments, Gallstone/Gallbladder disease management, Gastro-Oesophageal reflux disease treatments, and advanced Weight Loss and Metabolic programs. We also offer solutions for Hiatus or para-oesophageal hernias, Achalasia and other oesophageal motility disorders, Barrett’s oesophagus, and provide comprehensive Gastroscopy and Colonoscopy services. For those seeking non-surgical weight loss solutions, we are proud to be the only clinic in Sydney SW offering the Allurion Gastric Balloon procedure.

Did you know?

Dr Manju is the only Surgeon in Sydney SW to offer the Allurion Balloon procedure...

The Allurion Programme is a 6-month medical weight loss programme that aims to transform not just your body but also your mindset towards food, ensuring long-term health benefits. Central to the program is the Allurion Balloon, an advanced gastric balloon that occupies space in your stomach, promoting a feeling of fullness faster and for longer. The procedure is incredibly convenient, requiring no surgery, no endoscopy, and no anaesthesia. Within just 15 minutes, you can embark on a remarkable weight loss journey without any downtime.

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You swallow a capsule that contains the balloon attached to a thin tube. A 15-min outpatient procedure with no surgery, no anaesthesia and no endoscopy.

Once in Stomach

Once in your stomach, your doctor uses the tube to fill the balloon with liquid. With the Allurion Balloon, you feel full faster and for longer while eating less.


At approximately 16 weeks after placement, the Allurion Balloon self-empties and passes out of the body naturally.
Lose an Average of 10-15% body weight in 16 weeks!


Providing precision and personalised pathways towards excellent care

Patient Journey

From the initial consultation, and surgery to aftercare. We ensure that you are supported throughout your Upper GI Surgery


Start your journey with an in-depth Consultation at our Bankstown clinic, a cornerstone of Sydney's healthcare community. Here, Dr. Manju and the Precision Upper GI Surgery team will discuss your medical history, specific needs and goals, and potential surgical options, laying the groundwork for your Upper GI surgery journey.

2. Pre Surgery

Prior to your surgery, we conduct a thorough Pre-Surgery Evaluation. This includes various tests and evaluations to ensure that Upper GI surgery is the best course of action for you. Our team in Sydney will guide you through the process, keeping your health and safety our top priority.

3. Surgery

Experience world-class care during your Surgery at a number of our facilities in Sydney, NSW. Under Dr. Manju's expert guidance, the surgical procedure is carried out with precision and utmost care, with your well-being at the forefront of our minds.

4. Recovery

Post-surgery, your Recovery phase begins. We provide a comprehensive care plan that includes advice on activities and rest, facilitating a smooth and efficient recovery. Our team is dedicated to supporting you through this crucial period of your health journey.

5. Dietician

Nutrition is a vital part of your weight loss journey, which is why our expert Dietician is on hand to offer tailored advice and support. From creating personalised meal plans to answering any dietary queries, we ensure your nutrition supports your recovery and long-term health goals.

6. Post op care / Recovery

Your journey with us doesn't end after your surgery. Our Post-Op Care and Recovery support is designed to help you maintain the results of your Upper GI surgery. Through regular check-ups, assessments, and ongoing nutritional guidance, we're committed to helping you enjoy a healthier, happier life.

At Precision Upper GI Surgery in Sydney, NSW, we’re with you every step of the way, from your first consultation to your ongoing post-operative care and recovery.

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Upper GI Surgery Specialist Room Locations

Bankstown Hospital Medical Centre

Suite 101, 68 Eldridge Road, Bankstown NSW 2200


Tel: 02 97932170

Fax: 02 97932176

Strathfield Private Hospital

3 Everton Road, Strathfield, NSW 2135


Tel: 02 9793 2170

Fax: 02 9793 2176

Oran Park: Complete Health Australia

TRN House, Suite 2/03 90 Podium Wy, Oran Park NSW 2570

Tel: 1300874325

Fax: 02 8080 8115

Miranda: SMI

1-3/545-549 Kingsway, Miranda NSW 2228


Tel: 02 95253444

Fax: 02 95253999

Public hospital locations


Bankstown Lidcombe Hospital

Suite 101, 68 Eldridge Road, Bankstown NSW 2200

Tel: 02 9722 8000

Private locations

St George Private Hospital

Strathfield Private Hospital

Camden Surgical Hospital

Waratah Private Hospital

Hurstville Private Hospital

Schedule an appointment

From initial consultation throughout the patient journey of your Upper GI Surgery, we treat you with respect and dignity and as such we will help you to solve your health problems.


Give us a call or drop by anytime, we endeavour to answer all enquiries within 24 hours on business days.

We are open from 9 am — 5 pm on weekdays.