Choosing a bariatric surgeon is an important decision. Bariatric surgery is not a single operation, and the most suitable procedure depends on each person’s health, weight history, medical conditions, previous treatments and long-term goals.
Different bariatric procedures have different benefits, risks and considerations. A good bariatric consultation should help you understand your options and explain why one approach may be more suitable than another.
When choosing a bariatric surgeon, it is worth considering their qualifications, training, experience, range of procedures offered, support team and long-term follow-up.
At Metabolic & Bariatric Surgery Australia (MBSA), Dr Mani Niazi and Dr Ramin Mehdipour assess every patient individually before recommending a procedure. Here are eight important questions to ask.
1. Is the Surgeon Appropriately Qualified and Trained in Bariatric Surgery?
In Australia, bariatric surgery should be performed by an appropriately qualified specialist surgeon.
The post-nominal FRACS (Fellow of the Royal Australasian College of Surgeons) indicates completion of specialist surgical training recognised by the College.
Patients can confirm a surgeon’s specialist registration through the Australian Health Practitioner Regulation Agency (Ahpra) register and can also refer to the Royal Australasian College of Surgeons Find a Surgeon directory.
Patients may also wish to ask whether the surgeon has undertaken additional fellowship training or has focused experience in bariatric surgery. Bariatric surgery is a specialised field involving different procedures, metabolic conditions and long-term patient care.
Qualifications are an important starting point, but experience with different bariatric procedures and the overall care pathway are also important considerations.
2. Does the Surgeon Offer a Range of Bariatric Procedures?
There is no single bariatric operation that is suitable for everyone.
The most appropriate procedure depends on factors such as:
- BMI and weight-loss goals
- type 2 diabetes and other metabolic conditions
- reflux symptoms or hiatus hernia
- eating patterns
- previous weight-loss treatments
- previous bariatric surgery
Common bariatric procedures include sleeve gastrectomy, Roux-en-Y gastric bypass and one anastomosis gastric bypass.
Some patients may require:
- conversion surgery (changing one bariatric procedure into another, such as converting a sleeve gastrectomy into a gastric bypass)
- revision surgery (further surgery after a previous bariatric procedure to address issues such as weight regain, complications or changes over time)
A surgeon who performs a range of bariatric procedures can help explain the advantages, limitations and suitability of different options.
Bariatric surgery should not be approached as a “one operation fits all” treatment. The goal is to select the right procedure for the right patient.
Read more: Gastric Sleeve vs Gastric Bypass: What Is the Difference?

3. How Much Experience Does the Surgeon Have With Bariatric Surgery?
Experience is an important consideration when choosing a bariatric surgeon.
Patients may wish to ask:
- how long has the surgeon been performing bariatric surgery?
- how regularly do they perform the procedure being considered?
- do they perform conversion and revision procedures?
- do they manage patients with more complex medical conditions?
Different bariatric procedures involve different technical considerations. Experience with the specific procedure being considered helps patients understand the expected benefits, risks and alternatives.
4. Does the Surgeon Participate in Outcome Monitoring and Quality Improvement?
Quality improvement is an important part of modern surgical care.
The Bariatric Surgery Registry collects information about bariatric procedures and outcomes across Australia and New Zealand to support monitoring and improvement of bariatric surgery care.
Patients may wish to ask whether their surgeon or bariatric program contributes to recognised outcome monitoring systems.
However, quality care involves more than data collection alone. It also includes appropriate patient selection, safe surgical practice, multidisciplinary support and long-term follow-up.

5. Is There a Multidisciplinary Team Supporting Your Care?
Bariatric surgery is not only about the operation itself. Long-term outcomes are influenced by nutrition, lifestyle changes, behavioural support and ongoing medical care.
A comprehensive bariatric program should provide access to appropriate support, which may include:
- bariatric dietitian support
- psychological support when required
- exercise guidance
- medical follow-up
Having access to a multidisciplinary team helps patients prepare for surgery and develop strategies to maintain long-term health improvements.
6. Where Is the Surgery Performed and What Hospital Support Is Available?
The hospital environment is an important part of surgical care.
Patients may wish to ask:
- which hospitals does the surgeon operate at?
- does the hospital have experience caring for bariatric patients?
- what post-operative support is available if concerns arise?
Access to appropriate facilities, experienced hospital teams and clear pathways for managing potential complications are important considerations.
7. What Follow-Up and Aftercare Will You Receive?
Bariatric surgery is a long-term health intervention, not simply an operation.
After surgery, patients require ongoing monitoring, including:
- weight progress review
- nutritional assessment
- vitamin and mineral monitoring
- support with lifestyle changes
- management of obesity-related health conditions
Patients should ask:
- how long does structured follow-up continue?
- who will support me after surgery?
- is there ongoing access to dietary and medical advice?
A comprehensive bariatric program recognises that ongoing support after surgery is an important part of long-term care.

8. What Are the Costs and What May Medicare or Private Health Insurance Cover?
The costs associated with bariatric surgery vary depending on individual circumstances, eligibility, hospital pathway and insurance status.
Patients should ask:
- what costs are involved?
- what may Medicare cover?
- what does private health insurance cover?
- are there additional program or follow-up costs?
Medicare benefits and private health insurance coverage depend on individual circumstances and eligibility criteria. Patients should confirm details with their surgeon’s office, Medicare and their health insurer.
Making Your Decision
Choosing a bariatric surgeon involves more than selecting an operation.
Important considerations include:
- specialist qualifications
- bariatric training and experience
- experience with different bariatric procedures
- ability to perform conversion and revision surgery when required
- access to multidisciplinary care
- hospital facilities
- long-term follow-up and support
- clear communication and trust
There is no single best operation for every patient. The most appropriate procedure is determined through an individual assessment and discussion between you and your healthcare team.
A good bariatric surgeon should help you understand all suitable options and explain the reasons behind their recommendations.
About MBSA
MBSA provides comprehensive bariatric and metabolic surgery care for patients considering weight-loss surgery or seeking a structured approach to obesity management.
The program is led by Dr Mani Niazi and Dr Ramin Mehdipour, specialist surgeons with experience in bariatric and upper gastrointestinal surgery.
Dr Mani Niazi is a Fellow of the Royal Australasian College of Surgeons (FRACS) with almost two decades of surgical experience. He has undertaken additional fellowship training in Upper Gastrointestinal and Bariatric Surgery and has gained surgical experience across Australian and international healthcare systems.
His bariatric practice includes sleeve gastrectomy, gastric bypass, one anastomosis gastric bypass, conversion procedures and revision bariatric surgery.
At MBSA, we recognise that bariatric surgery is not a one-size-fits-all treatment. Each patient is assessed individually, and the recommended procedure is based on their health, medical history, goals and circumstances.
The MBSA program includes:
- access to an experienced in-house bariatric dietitian
- face-to-face dietitian consultations for patients attending the clinic
- telehealth consultations with surgeons and dietitians where appropriate
- two years of structured follow-up with bariatric surgeons, bulk billed as part of the program
- ongoing support beyond the initial follow-up period
Bariatric surgery is performed at accredited private hospitals including Knox Private Hospital, Holmesglen Private Hospital and Peninsula Private Hospital.
If you would like to discuss your options, you can start your journey with MBSA or contact our team to arrange an assessment.
Frequently Asked Questions
Is there one best bariatric operation?
No. Different procedures have different benefits and considerations. The most suitable operation depends on factors such as BMI, reflux, diabetes, previous surgery, eating patterns and individual goals.
Should my surgeon perform different types of bariatric surgery?
A surgeon who performs a range of bariatric procedures can discuss different options and explain why one operation may be more suitable than another. This is particularly relevant for patients who may require conversion or revision surgery in the future.
What is conversion or revision bariatric surgery?
Conversion surgery involves changing one bariatric procedure into another, such as converting a sleeve gastrectomy into a gastric bypass. Revision surgery involves further surgery after a previous bariatric procedure to address concerns such as weight regain, complications or changes over time. These procedures require careful assessment of the patient’s previous operation, anatomy and goals.
Do I need lifelong follow-up after bariatric surgery?
Long-term follow-up is an important part of bariatric surgery care. Patients require nutritional monitoring, vitamin supplementation and ongoing support after surgery.
Can I seek a second opinion before surgery?
Yes. Bariatric surgery is an important decision, and patients should feel comfortable asking questions and seeking further information before proceeding.
Disclaimer: This article is intended for general informational purposes only. It does not constitute medical advice. Individual outcomes vary. Patients should consult a qualified medical professional before making decisions about surgical or medical treatment.



