Dr. Tanvir is Pakistan’s only full-time bariatric surgeon, exclusively dedicated to helping patients combat obesity—a growing global health challenge. With over 30 years of experience across the UK, Ireland, Saudi Arabia, and Pakistan, Dr. Tanvir has performed more than 3,000 successful laparoscopic surgeries. His qualifications include international certifications and regular participation in global conferences to stay at the forefront of bariatric research and innovation.
We offer various weight loss surgeries, catering to unique patient needs.
Laparoscopic Sleeve Gastrectomy (LSG) is one of the most common types of bariatric (weight-loss) surgery worldwide. It’s effective, minimally invasive, and helps people with obesity achieve significant and lasting weight loss.
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Mini-Gastric Bypass (MGB), also known as One Anastomosis Gastric Bypass (OAGB), is a minimally invasive weight-loss surgery designed to help patients with obesity and related health conditions. It combines the benefits of reducing food intake and limiting calorie absorption for effective long-term weight loss.
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Roux-en-Y Gastric Bypass (RYGB) involves creating a small stomach pouch and rerouting a portion of the small intestine to limit food intake and reduce calorie absorption. This dual approach leads to significant weight loss and improvement in obesity-related conditions like diabetes and sleep apnea.
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Revisional surgery refers to a type of surgical procedure performed to correct or modify the results of a previous surgery, particularly in cases where the initial procedure did not achieve the desired outcomes or has caused complications. In the context of bariatric (weight-loss) surgery, revisional surgery is undertaken when a patient experiences issues such as insufficient weight loss, significant weight regain, or complications like acid reflux, nutritional deficiencies, or surgical site problems.
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Weight-loss medications are an option for individuals who struggle with obesity and prefer a non-surgical approach as well as falling under the ‘overweight’ category. These FDA-approved medicines work by targeting various aspects of metabolism, appetite control, or nutrient absorption to help patients lose weight safely and effectively which need to be consumed life-long to maintain their weight.
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Dr. Tanvir strongly believes that post-surgery follow-up is as crucial as the surgery itself, if not more! Our structured follow-up program provides lifelong patient care and support through regular follow-up appointments, nutritional guidance and monitoring.
Our skilled and dedicated team is fully committed to our patients’ success. We work together to provide comprehensive, compassionate, patient-centered care - before, during & after surgery.
Patient safety and surgical excellence are our top priorities. That’s why we invest in state-of-the-art medical technology to support safe, effective, and minimally invasive bariatric procedures. Our facility is equipped with 4K high-resolution laparoscopic towers, camera control units (CCU), staplers, energy devices, and long-shaft graspers. This advanced technology allows our surgical team to perform complex procedures with greater accuracy, reduced surgery time, and faster recovery for patients—delivering the highest standards of bariatric care.
Bariatric surgery is now a globally recognized treatment for morbid obesity and related conditions like diabetes, hypertension, infertility, PCOS, sleep apnea, and fatty liver disease. The international standard emphasizes careful patient selection, evidence-based procedures tailored to individual needs, enhanced recovery protocols, and lifelong follow-up. Committed to improving overall health and well-being, we ensure our patients receive the highest level of care at every step.
Our facility is purpose-built to meet the unique physiological and surgical needs of patients with obesity. We use state-of-the-art bariatric operating tables with enhanced weight-bearing capacity, multi-directional adjustability and flexible positioning features. By creating a technologically advanced and patient-focused surgical environment, we are able to reduce operative risks, shorten recovery time, and provide a consistently high standard of care—ensuring that safety remains at the forefront of every procedure.
Call us or leave a WhatsApp message to book your appointment today! Let us be ‘Your Partner in Weight Loss!’
Posted on Sameen ShakilTrustindex verifies that the original source of the review is Google. My mother underwent a laparoscopy with Dr. Tanveer Raazi. The doctor and his staff made this potentially overwhelming experience very easy and calming. Dr. Raazi's professionalism and kind demeanor made our decision to choose him well worth it.Posted on Javed ArshadTrustindex verifies that the original source of the review is Google. Allhumdullilah very happy with dr tanvir raazi and team. Doctor obesity clinic and all staff was experienced Allhumdullilah.Posted on Saman QasimTrustindex verifies that the original source of the review is Google. Great experience i had , it was my first surgery ever, dr tanveer and his team made this experience very very easy for me , very professional and cooperative staff they have ✨Posted on Ahmed RehmanTrustindex verifies that the original source of the review is Google. Dr Tanvir Raazi Ahmed was a great doctor and very helpful over all MashaAllah I had my gastric sleeves 2 weeks ago in Dr obesity clinic karachi over all experience was great the hospital staff consultation every thing was perfect I lose 8 kg after 2 weeks and feels great JazakaAllahPosted on alishba pervaizTrustindex verifies that the original source of the review is Google. I really had a good experience with them, I was confused while takinh this decision but I don’t regret it. I feel so light and energised. Lost 6kgs in 15 days. The staff is very cooperative.Posted on Gulnaz GhausiTrustindex verifies that the original source of the review is Google. I visited Dr. Tanvir Raazi Ahmed at Doctor Obesity Clinic, Karachi, for a consultation on gastric sleeve surgery. He was generous with his time, heard my issues and offered solutions. I explained in detail my previous surgeries and issues related to anesthesia and was assured my concerns would be taken into consideration. Once I had all the pre-requisite tests done, I returned and underwent a successful gastric sleeve surgery. Post surgical care by his team has been phenomenal, they really know how to put the patient at ease. I was walking and having liquids within 3 hours of my surgery. I'm already down a few kgs, feel much better and my mobility has improved as well. The detailed post surgical diet is well planned and I look forward to regaining my health.Posted on Nighat RafiqueTrustindex verifies that the original source of the review is Google. My experience with Dr. Tanvir Raazi Ahmad at Doctor Obesity Clinic in Karachi has been outstanding. The guidance provided for my gastric bypass surgery was exceptional, and the team's assistance was consistently top-tier. Their dedication to patient support is evident through their highly responsive and helpful approach, including round-the-clock online availability. For individuals navigating the challenges of obesity, I wholeheartedly recommend seeking a consultation with Dr. Tanvir Raazi Ahmad at Doctor Obesity Clinic. Their expertise in procedures like gastric bypass and the comprehensive support offered are truly commendable, leading to truly transformative outcomes.Posted on CHART CLOUDTrustindex verifies that the original source of the review is Google. My life changed after my cousin recommended Dr. Tanvir and his incredible team for bariatric surgery. My husband and I were on the verge of developing multiple serious health issues due to obesity. Choosing this team was the best decision we ever made. Their care, professionalism, and support were beyond amazing. From the very first consultation to post-surgery care, everything was seamless. Even now, they continue to stay in touch and check in on us regularly, which shows how deeply they care about their patients. This experience has truly been life-changing—not just physically, but emotionally and mentally as well. I’m beyond grateful to Dr. Tanvir and his team. They are nothing short of amazing!Posted on Adnan TumbiTrustindex verifies that the original source of the review is Google. The Experience was very good. I think best doctor for Weight loss. They have all types of procedures, I went for Gastric Sleeve option. The whole journey was very smooth, post op care was amazing. Follow up procedure so far very impressive.Posted on Almas HashmeyTrustindex verifies that the original source of the review is Google. I'm a female 62 yrs of age. My weight at the time of surgery was 121 kg. I have been trying to reduce weight for a couple of years now but to no avail. Doctor Tanvir was eloquent in putting the pros and cons of the procedure and life after. I was hesitant because I knew I had to change my behavior and lifestyle. After a couple of months I realized that I was just making excuses. Doctor Tanvir is a pro at the surgery. I came out dreaming from the procedure. The care and after staff are excellent. Immediately post surgery you start on a course of eating healthy, walking and like minded friends for positive influence. By the time you are released you are on a renewed path. Thank you Doctor Tanvir.