Weight Loss Surgery in Orpington
Speak to our weight loss clinic in OrpingtonThoughtful Weight Loss Surgery, Planned Around You
For many people, the hardest part of weight loss surgery is not the procedure itself. It is making the decision to ask for help.By the time patients contact Tonic Weight Loss Surgery, they have often spent years trying different ways to lose weight. They may have followed numerous diets, joined weight loss programmes or increased their activity levels, only to find that maintaining long-term results remains difficult. Others may be concerned about the impact their weight is having on their health and are ready to explore a clinically supported solution.
At our Orpington location, we believe that every patient deserves the time and space to fully understand their options before making any decisions. Weight loss surgery is a significant step, and our approach is centred around careful assessment, open conversations and personalised treatment planning rather than rushing patients towards a particular procedure.
Patients choosing our Orpington clinic receive treatment at Chelsfield Park Hospital, a well-established private hospital providing modern facilities and a welcoming healthcare environment. From your first consultation through to surgery and recovery, every stage of your care is delivered with a strong focus on safety, communication and long-term wellbeing.
Many of our patients come from Orpington, Bromley, Sevenoaks, Bexley, Sidcup and surrounding areas, while others travel from across the South East because they value specialist bariatric care delivered by an experienced team. Wherever you are travelling from, our priority is to provide clear advice, realistic expectations and the reassurance that support will continue long after surgery has taken place.
Specialist Care at Chelsfield Park Hospital
Weight loss surgery at our Orpington location is carried out at Chelsfield Park Hospital, a respected private hospital providing a modern and comfortable setting for specialist bariatric treatment.
The hospital has been selected because it supports the high standards of clinical care that patients expect from Tonic Weight Loss Surgery. From consultation through to surgery and follow-up appointments, patients benefit from a professional healthcare environment where safety, comfort and personalised care remain central throughout the process.
Having treatment within a dedicated private hospital also allows patients to receive focused bariatric care supported by experienced healthcare professionals who understand the importance of every stage of the patient journey.
Why Patients Choose Our Orpington Clinic
Every patient’s experience of obesity is different, which is why every conversation about treatment should begin with understanding the individual rather than discussing surgery.
Our consultations are designed to give patients the opportunity to explore their options without pressure. We recognise that people often arrive with concerns about recovery, suitability or whether surgery is the right decision for them. Taking the time to answer these questions thoroughly is an important part of helping patients feel informed and confident before moving forward.
Patients choose our Orpington clinic because they value:
- Specialist bariatric surgery delivered within a trusted private hospital.
- Unhurried consultations focused on understanding individual health needs.
- Honest, clinically led recommendations.
- A supportive team that remains available throughout treatment.
- Modern private healthcare facilities.
- One of the UK’s most comprehensive 5-year aftercare programmes.
This consultation-led approach ensures that treatment recommendations are based on what is clinically appropriate for each patient, helping build confidence before surgery even takes place.
If you’re considering weight loss surgery, book a consultation with our Orpington team to discuss your options, ask questions and receive personalised advice based on your individual health and long-term goals.
Join thousands of happy Orpington patients
Thousands of Tonic patients rave about the life-changing surgeries they had with Tonic. We’re incredibly proud of the stories that Tonic patients share, both from Orpington and around the UK.
You can read more success stories by clicking the link below.
Weight Loss Procedures Available
There is no single weight loss procedure that is right for everyone.
Each treatment offers different benefits depending on your medical history, BMI, eating habits and long-term objectives. During your consultation, these factors are carefully assessed before any recommendation is made.
Patients attending our Orpington clinic have access to:
Gastric sleeve surgery reduces the size of the stomach, helping patients feel full sooner while supporting long-term weight loss alongside healthier eating habits.
Here are the key details on our Gastric Sleeve Surgery in Orpington:
- Average recovery time for a gastric sleeve procedure is 7 days.
- Gastric sleeve surgery usually lasts around 60 minutes.
- Gastric bypass patients should expect to lose 70-75% of their excess weight.
- The procedure involves 5 small abdominal incisions.
- Tonic’s premium aftercare is included in our Gastric sleeve surgery package!
Gastric bypass surgery combines stomach reduction with changes to the digestive system and may be recommended where greater weight loss or improvements to obesity-related health conditions are required.
Here are the key details on our Gastric Bypass Surgery in Orpington:
- Average recovery time for gastric bypass procedures is 10 to 14 days.
- Gastric bypass surgery usually lasts around 60 minutes.
- Gastric bypass patients should expect to lose 60-70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Gastric bypass surgery package!
The mini gastric bypass provides an alternative surgical option that may be appropriate depending on your individual health profile and treatment goals.
Here are the key details on our Mini Gastric Bypass Surgery in Orpington:
- Average recovery time for our mini gastric bypass procedures is 10 to 14 days.
- Mini Gastric Bypass surgery usually lasts around 70 minutes.
- Mini Gastric Bypass patients should expect to lose between 60% and 70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Mini Gastric Bypass surgery package!
Patients who have previously undergone bariatric surgery may be suitable for revision procedures where further treatment is clinically appropriate following comprehensive assessment.
Every recommendation is made with one objective in mind: identifying the treatment that offers the safest and most sustainable long-term outcome for the individual patient.
- Average recovery time for our mini gastric bypass procedures is 7 days.
- Revision Weight Loss Surgery usually lasts around 70 minutes.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Revision Weight Loss Surgery package!
Gastric sleeve surgery reduces the size of the stomach, helping patients feel full sooner while supporting long-term weight loss alongside healthier eating habits.
Here are the key details on our Gastric Sleeve Surgery in Orpington:
- Average recovery time for a gastric sleeve procedure is 7 days.
- Gastric sleeve surgery usually lasts around 60 minutes.
- Gastric bypass patients should expect to lose 70-75% of their excess weight.
- The procedure involves 5 small abdominal incisions.
- Tonic’s premium aftercare is included in our Gastric sleeve surgery package!
Gastric bypass surgery combines stomach reduction with changes to the digestive system and may be recommended where greater weight loss or improvements to obesity-related health conditions are required.
Here are the key details on our Gastric Bypass Surgery in Orpington:
- Average recovery time for gastric bypass procedures is 10 to 14 days.
- Gastric bypass surgery usually lasts around 60 minutes.
- Gastric bypass patients should expect to lose 60-70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Gastric bypass surgery package!
The mini gastric bypass provides an alternative surgical option that may be appropriate depending on your individual health profile and treatment goals.
Here are the key details on our Mini Gastric Bypass Surgery in Orpington:
- Average recovery time for our mini gastric bypass procedures is 10 to 14 days.
- Mini Gastric Bypass surgery usually lasts around 70 minutes.
- Mini Gastric Bypass patients should expect to lose between 60% and 70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Mini Gastric Bypass surgery package!
Patients who have previously undergone bariatric surgery may be suitable for revision procedures where further treatment is clinically appropriate following comprehensive assessment.
Every recommendation is made with one objective in mind: identifying the treatment that offers the safest and most sustainable long-term outcome for the individual patient.
- Average recovery time for our mini gastric bypass procedures is 7 days.
- Revision Weight Loss Surgery usually lasts around 70 minutes.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Revision Weight Loss Surgery package!
Unsure Which Procedure Is Right for You?
Every patient’s journey is different. Speak to one of our patient coordinators and we’ll help you understand the available treatment options before arranging your consultation with Mr Shamsi El-Hasani.
Meet Your Orpington Bariatric Surgeon
Receiving the right advice is just as important as receiving the right procedure.
Mr Shamsi El-Hasani
Mr Shamsi El-Hasani performs gastric sleeve surgery, gastric bypass surgery, mini gastric bypass surgery and revision weight loss surgery for patients attending our Orpington clinic.
His approach begins by understanding the patient rather than the procedure. Consultations focus on discussing overall health, previous weight loss experiences, future aspirations and any concerns patients may have before treatment recommendations are made.
Patients value his calm and approachable manner, helping them feel comfortable asking questions and gaining a clear understanding of the options available. This detailed consultation process allows every treatment plan to be developed around the individual’s circumstances, ensuring recommendations remain realistic, clinically appropriate and focused on long-term success.
Caring for Patients Across Orpington and the South East
Our Orpington clinic supports patients from throughout Kent, South East London and the surrounding counties, who are looking for specialist bariatric care delivered in a trusted private healthcare environment.
Many people choose our Orpington location because it provides convenient access to experienced weight loss specialists while remaining close to home. Patients regularly visit us from Bromley, Bexley, Sevenoaks, Sidcup, Chislehurst, Dartford and neighbouring areas, while others travel further because they value the standard of care and long-term support we provide.
For many patients, having a dedicated specialist clinic nearby makes attending consultations, follow-up appointments and aftercare reviews far more straightforward, helping them remain engaged throughout every stage of treatment.
Our commitment is to ensure every patient receives the same personalised support, regardless of where they begin their journey.
Five Years of Dedicated Aftercare
One of the reasons patients choose Tonic is the support they receive after surgery. While the operation is an important milestone, maintaining successful weight loss requires ongoing guidance, encouragement and specialist care.
Our structured 5-year aftercare programme has been developed to support patients through every stage of recovery and long-term weight management. By combining expert clinical advice with practical lifestyle support, we help patients build healthier habits and achieve lasting results with confidence.
During the first two years, patients receive one-to-one support from:
- A specialist psychotherapist.
- A registered dietitian.
- A bariatric nurse.
- A dedicated fitness professional.
- Ongoing follow-up with their surgeon.
This multidisciplinary approach helps patients adapt to dietary changes, establish healthier routines and navigate the challenges that naturally accompany significant weight loss.
Support then continues for a further three years through dedicated telephone aftercare alongside ongoing surgeon follow-up, providing continued reassurance and expert guidance whenever it is needed.
Our commitment to aftercare reflects our belief that meaningful, sustainable weight loss is achieved through long-term support, ongoing education and partnership rather than surgery alone.
Learn more about our aftercare
Unlimited Dietician Appointments for 2 years
Unlimited Psychotherapist Appointments for 2 years
Unlimited Support with Virtual Fitness Coach for 2 Years
Unlimited Bariatric Nurse Support for 2 years
5 Years Surgeon Follow Up
The Gym Group 30-day Membership
The Tonic Tool Kit
Tonics Private Social Media community support
Out Of Hours Support Line
Speak to Our Team
Want to find out more about our 5-year aftercare programme? Request a call back and discover how our specialist multidisciplinary team continues supporting patients long after surgery has taken place.
Your Experience with Tonic
Making the decision to have weight loss surgery is only the beginning. What follows is a carefully managed process designed to give you the knowledge, confidence and support needed to make lasting improvements to your health.
Your experience starts with a comprehensive consultation where your surgeon will take time to understand your medical history, discuss your previous experiences with weight management and explore what you hope to achieve. This conversation is not about directing you towards surgery. It is about helping you understand your options and deciding whether bariatric treatment is the right choice for your circumstances.If surgery is recommended, you will receive detailed guidance before your procedure so that you know exactly what to expect during preparation, your hospital stay and your recovery. Every stage is explained clearly, helping you approach treatment feeling informed and reassured.
Following surgery, your relationship with Tonic continues through regular reviews and structured aftercare. As your lifestyle changes and your confidence grows, our team remains available to provide practical advice, monitor your progress and help you build sustainable habits that support long-term success.
We believe successful outcomes come from combining expert surgery with ongoing support, allowing patients to move forward knowing they are never facing the journey alone.
Supporting Sustainable Weight Loss
Losing weight is only one part of improving your overall health.Long-term success often comes from the small changes patients make every day following surgery. Learning new eating habits, increasing physical activity at a comfortable pace and building confidence in everyday life all contribute to maintaining successful weight loss over time.
Our team encourages patients to focus on gradual, sustainable progress rather than chasing rapid results. By developing realistic routines and receiving ongoing professional guidance, many people find they are able to maintain the positive changes they have worked so hard to achieve.
This long-term perspective reflects our belief that weight loss surgery should provide the foundation for healthier living rather than acting as a standalone treatment.
Flexible Finance Options
We understand that choosing private weight loss surgery is an important investment in your future wellbeing.Flexible finance options are available to help patients spread the cost of treatment. During your consultation, we will explain the available options, answer any questions you may have and ensure you understand the costs involved before making any decisions.
Our aim is to provide clear, transparent information so you can focus on choosing the treatment that is right for your health with complete confidence.
Book Your Orpington Consultation
If you are considering private weight loss surgery, a consultation provides the opportunity to explore your options with the support of an experienced bariatric specialist.During your appointment, you will be able to discuss your health, ask questions and receive personalised guidance based on your individual circumstances. Whether you are ready to move forward with treatment or simply want to understand what weight loss surgery involves, our team is here to provide clear advice in a supportive and welcoming environment.
At Tonic Weight Loss Surgery, we combine specialist bariatric expertise, trusted private healthcare and one of the UK’s most comprehensive aftercare programmes to help patients achieve meaningful, sustainable improvements to their health. From your first consultation through to surgery, recovery and long-term support, our focus remains on helping you build a healthier future with confidence.
Contact our team today to arrange your consultation and discover how specialist weight loss surgery in Orpington could help you take the next step towards lasting, sustainable weight loss.
Hi I'm Cat Bevin
I’m a Tonic Patient Coordinator; I’m here to help you start your weight loss journey
It’s my job to support you through your journey with Tonic, from initial consultation where we’ll learn all about you and your weight loss journey to date, through to your 5 years of aftercare with our specialist team. We’re here for you at every stage.
FAQs
You’ll check in at reception, then be shown through to the ward/your room.
Yes, parking is available for patients.
Orpington and Chelsfield
Mr Shamsi El-Hasani operates from this location.
Weight loss surgery for patients attending our Orpington clinic is carried out at Chelsfield Park Hospital. Your consultation will include everything you need to know about your treatment location and what to expect on the day of surgery.
Patients have access to gastric sleeve surgery, gastric bypass surgery, mini gastric bypass surgery and revision weight loss surgery. Your surgeon will recommend the most appropriate procedure following a detailed consultation.
Yes. We welcome patients from across Kent, South East London and neighbouring counties who are looking for specialist bariatric care and comprehensive long-term aftercare.
Every patient undergoing weight loss surgery with Tonic benefits from our structured 5-year aftercare programme, including ongoing support from a psychotherapist, dietitian, bariatric nurse, fitness professional and regular follow-up with their surgeon.
Book Your Orpington Consultation
If you are considering private weight loss surgery, arranging a consultation is the first step towards understanding your options and deciding whether treatment is right for you.
During your appointment, you will have the opportunity to discuss your health, ask questions and receive personalised advice from an experienced bariatric surgeon. Whether you are based in Orpington or travelling from elsewhere, our team is here to provide the guidance and reassurance you need to make a confident, informed decision.
At Tonic Weight Loss Surgery, we combine specialist bariatric expertise, trusted private hospitals and one of the UK’s most comprehensive aftercare programmes to help patients achieve meaningful, sustainable weight loss. From your first consultation through to surgery, recovery and years of ongoing support, every stage of your journey is focused on helping you build a healthier future.
Contact our friendly team today to arrange your consultation and discover how specialist weight loss surgery in Orpington could help you take the next step towards lasting change.
The UK’s best rated weight loss surgery company.
Life changing stories
The UK’s best rated weight loss surgery company.
Life changing stories
Ally
10 st (64 kg)*
Weight Loss
“I have struggled with my weight all of my adult life, I have PCOS and every diet I have tried just wasn’t successful.
I have lost over 10 stone and I feel absolutely incredible. I would never have dreamt to have the life that I currently have now.”
Paul
10 st (64 kg)*
Weight Loss
“Life before surgery was fake, I had a happy face but was not really happy. I wouldn’t go on lads holidays with my friends or take my kids swimming.
I have lost over 10 stone and it’s been life changing. I have got my life back. I can now take my kids swimming, go on holiday, do those things that I should have done 10,15,20 years ago.”
Danni's
5 1/2 stone (35 KG)*
Weight Loss
“Before I had surgery, I’d always yo-yoed with my weight. I was ashamed because of the size I’d gotten to. I was unable to buy the clothes I wanted to wear. I didn’t feel like the person that I wanted to be nor did my reflection match the person I felt inside.
The surgery with Tonic has absolutely changed my life. I’ve lost 5 and a half stone, and I am more confident and outgoing.
Chanelle
9st (57kg)
Weight Loss
“Before weight loss surgery, I couldn’t cope with doing anything strenuous and I couldn’t spend time with my children in the way I wanted to. My eating was out of control, and I had been yo-yoing.
A year out from surgery, I’m a completely different person. Last year, my body fat percentage was in the morbidly obese category. Now, I’m in the healthy weight category.”
Claire
10 st (64 kg)*
Weight Loss
“I lost 8.5 stone. I feel like one of the gym girls, I have done a 10k this year and I am signed up to Brighton half marathon next year! I chose Tonic because I saw so many success stories online and because of the aftercare package. You have the dietician, the PT, the psychotherapist and the constant support group from others who have had surgery and the team in the office”
