Clin Asst Prof Yeung Po Man Baldwin is Head and Senior Consultant of the Upper Gastrointestinal and Bariatric Service in the Department of General Surgery at Sengkang General Hospital, and a bariatric surgeon in the hospital’s SWITCH weight-management programme.
He graduated from the University of Glasgow with first class honours in 2006 and obtained a PhD in Biomedical Engineering from the University of Strathclyde in 2015.
He became a Fellow of the Royal College of Surgeons of Edinburgh in 2015 and a Fellow of the Royal College of Physicians and Surgeons of Glasgow in 2017. Conditions he treats include obesity, gallstones, hernia, oesophageal cancer and gastric cancer.
Clinical focus
Sleeve gastrectomy & gastric bypass.
Qualifications (as publicly listed)
BSc (Hons), MBChB (Hons), PhD, FRCS (Edin), FRCS (Glasg).
Where they practise
- Clinic / practice: Upper GI & Bariatric Service (SWITCH), Sengkang General Hospital — Sengkang
- Hospital / training affiliation(s): Sengkang General Hospital (SKH)
Getting to the clinic
Clin Asst Prof Baldwin Yeung leads the Upper Gastrointestinal and Bariatric Service, including the SWITCH weight-management programme, at Sengkang General Hospital in the north-east of Singapore. The hospital is well connected by public transport in the Sengkang and Buangkok area, with nearby MRT stations and bus services, and is reached easily by taxi or ride-hailing.
- By MRT: Sengkang General Hospital is served by nearby North-East Line and LRT stations in the Sengkang area; follow station signage and bus links to the hospital.
- By bus: several services stop at or near the hospital.
- By car or taxi: there is a sheltered drop-off and a visitor car park on site.
As a public hospital, parking is in the hospital visitor car park, and clinics are usually attended by referral or appointment.
What sleeve gastrectomy and gastric bypass covers
Clin Asst Prof Yeung’s stated focus is sleeve gastrectomy and gastric bypass, the two most common weight-loss operations. Sleeve gastrectomy removes a large part of the stomach to leave a narrow tube, reducing the amount you can eat and lowering hunger-related hormones. Gastric bypass creates a small stomach pouch and reroutes the small intestine, both limiting intake and changing how food is absorbed and how gut hormones signal fullness.
Both operations support substantial, sustained weight loss and frequently improve obesity-related conditions such as type 2 diabetes, high blood pressure, sleep apnoea and joint pain. As an upper gastrointestinal surgeon, his work also covers conditions he treats including gallstones, hernia, oesophageal cancer and gastric cancer. Weight-loss surgery is delivered within a multidisciplinary programme, here the SWITCH service, combining surgery with dietetic, medical and lifestyle support so that results are durable rather than dependent on the operation alone.
What to expect at a consultation
A first consultation reviews your weight and health history, related conditions such as diabetes and sleep apnoea, previous weight-loss attempts, current medications and your goals. As part of a structured programme, you may be assessed by several members of the team, including dietitians, and have investigations such as blood tests and an endoscopy to examine the stomach.
The surgeon explains whether you are suitable for surgery, which procedure may fit best, the expected benefits and risks, and the preparation and recovery involved. The lifestyle changes and follow-up that are central to long-term success are discussed at this stage, so you understand the commitment involved.
Preparing for your appointment
- Photo identification and your referral letter, as public clinics are usually accessed by referral.
- Previous records, scans, endoscopy reports and discharge summaries.
- A list of medications and supplements, including any blood thinners and diabetes medication.
- Recent blood results if available, and details of related conditions.
- A note of your weight history and previous weight-loss attempts.
- A written list of questions about the procedures and the programme.
Reflect beforehand on your readiness to make lasting dietary and lifestyle changes.
After your consultation and follow-up
Within a public hospital programme, follow-up after weight-loss surgery is structured and long-term, with reviews of nutrition, vitamin and mineral supplements, weight progress and the improvement of related conditions, supported by the multidisciplinary team. For cancer or other upper GI surgery, follow-up is tailored to the condition treated.
Continuity of care is a strength of a programme-based service, and keeping to scheduled reviews supports the best results. You are entitled to seek a second opinion. Seek urgent help, by attending an emergency department, for severe abdominal pain, persistent vomiting, inability to keep fluids down, bleeding, fever or signs of dehydration after surgery.
Booking, referrals and fees
As a public hospital service, access is usually through a referral, for example from a GP or polyclinic, which can also help with subsidised rates. Subsidised and private options may be available depending on eligibility. For eligible procedures, MediSave, MediShield Life and Integrated Shield Plans may contribute within set limits, and weight-loss procedures have specific clinical criteria. Confirm referral requirements, fees and coverage directly with the hospital.
Common questions
What is the difference between sleeve gastrectomy and gastric bypass?
Sleeve gastrectomy removes part of the stomach to make it smaller, while gastric bypass also reroutes the intestine. Both reduce intake and affect gut hormones; the better choice depends on your health and is decided together.
Who qualifies for weight-loss surgery in a public programme?
Surgery is generally considered for people with significant obesity, often with related conditions, after assessment against clinical criteria within the programme.
Will I need lifelong follow-up?
Yes. After weight-loss surgery, long-term follow-up and supplements help maintain nutrition and results, which is why a programme-based service is valuable.
Does the surgery help diabetes?
Weight-loss surgery often improves type 2 diabetes and other obesity-related conditions, sometimes substantially, though individual results vary.
Related guides
Sources & verification
See also: our editorial directory of bariatric & weight-loss surgeons in Singapore and our shortlist of bariatric surgery clinics.
This is an independent, factual profile compiled from the public sources listed above — not a paid listing, advertisement or endorsement. Details can change; always verify a doctor’s current registration on the Singapore Medical Council public register and confirm specifics directly with the clinic. This page is general information, not medical advice or a recommendation of any individual practitioner. See our editorial policy.
Don’t agree with this listing? If this is your profile and you’d like the details corrected, updated or removed — or you’d like to be featured — please reach out to us or use our contact form. We’ll sort it out quickly.