Top 25 Bariatric Surgeon Across the US
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What is a Bariatric Surgeon?
Learn about this specialty, training requirements, and when to schedule a visit.
A bariatric surgeon is a physician who specializes in surgical procedures designed to help patients with severe obesity achieve significant, lasting weight loss. These highly trained specialists perform metabolic and weight loss surgeries including gastric bypass, sleeve gastrectomy, adjustable gastric banding (lap-band), duodenal switch, and revision procedures. Bariatric surgeons work within comprehensive weight loss programs that include pre-surgical evaluation, nutritional counseling, psychological assessment, and long-term follow-up care. Beyond weight loss, bariatric surgery often leads to dramatic improvements or complete resolution of obesity-related conditions such as type 2 diabetes, sleep apnea, hypertension, and heart disease. Bariatric surgeons typically complete fellowship training in minimally invasive surgery, bariatric surgery, or advanced laparoscopic surgery following their general surgery residency.
Training and Qualifications
Becoming a bariatric surgeon requires extensive education and training:
- 4 years of medical school to earn an MD or DO degree
- 5 years of general surgery residency with comprehensive surgical training
- 1-2 years of fellowship training in bariatric surgery, minimally invasive surgery, or advanced GI/MIS surgery
- Total of 13-14 years of education and training beyond high school
- Extensive experience in laparoscopic and robotic surgical techniques required for modern bariatric procedures
- Many bariatric surgeons complete Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) training requirements
Board Certification: American Board of Surgery (ABS) in General Surgery, with most bariatric surgeons also holding subspecialty certification or focused practice designation in bariatric surgery. Many bariatric surgeons achieve Fellow of the American Society for Metabolic and Bariatric Surgery (FASMBS) designation. Surgeons must practice at MBSAQIP-accredited centers to demonstrate commitment to quality and safety standards in bariatric care.
When Should You See a Bariatric Surgeon?
You should consider seeing a bariatric surgeon if:
- Your BMI is 40 or higher (severe or morbid obesity)
- Your BMI is 35-39.9 with serious obesity-related health conditions such as type 2 diabetes, sleep apnea, or heart disease
- Your BMI is 30-34.9 with uncontrolled type 2 diabetes or metabolic syndrome (under newer guidelines)
- You have tried supervised diet and exercise programs without achieving lasting weight loss
- Your weight is causing or worsening health conditions like hypertension, fatty liver disease, or joint problems
- You are considering weight loss surgery and want to understand your options
- You had previous bariatric surgery that needs revision due to complications or inadequate weight loss
- Your doctor has recommended bariatric surgery evaluation for metabolic improvement
- You have weight-related physical limitations affecting your quality of life and mobility
Key Facts
Common Conditions Treated
Bariatric Surgeons are trained to diagnose and treat a wide range of conditions. Here are some of the most common conditions that bariatric surgeons help patients manage.
Severe Obesity (Class III Obesity)
Defined as a BMI of 40 or higher, severe obesity significantly increases the risk of life-threatening conditions including heart disease, stroke, type 2 diabetes, and certain cancers. Patients with severe obesity often struggle to achieve meaningful weight loss through diet and exercise alone due to metabolic, hormonal, and genetic factors.
Key Symptoms
Treatment Approach
Bariatric surgeons perform weight loss procedures that create lasting metabolic and anatomical changes to help patients lose significant weight. Gastric sleeve removes 80% of the stomach, while gastric bypass creates a small stomach pouch and reroutes the intestines. These procedures reduce hunger hormones, increase satiety, and lead to average excess weight loss of 60-70% within 18 months.
Type 2 Diabetes with Obesity
Obesity and type 2 diabetes are closely linked, with excess weight contributing to insulin resistance and poor blood sugar control. For patients with both conditions, metabolic surgery can achieve diabetes remission in ways that diet and medication often cannot, making it a recommended treatment option under current guidelines.
Key Symptoms
Treatment Approach
Bariatric surgery produces dramatic improvements in type 2 diabetes through multiple mechanisms including weight loss, hormonal changes, and altered gut signaling. Gastric bypass in particular has diabetes remission rates of 60-80%. Many patients reduce or eliminate diabetes medications within weeks of surgery, often before significant weight loss occurs.
Obstructive Sleep Apnea
A condition where excess weight causes the airway to collapse during sleep, leading to repeated breathing interruptions, poor sleep quality, and increased cardiovascular risk. Weight loss surgery can dramatically improve or cure sleep apnea in most patients.
Key Symptoms
Treatment Approach
Bariatric surgery leads to sleep apnea resolution or significant improvement in 80-90% of patients. Weight loss reduces fat deposits around the neck and airway, eliminating obstruction. Many patients can discontinue CPAP use within 6-12 months of surgery as their apnea resolves with weight loss.
Obesity-Related Hypertension
High blood pressure caused or worsened by excess body weight. Obesity increases blood volume and strains the cardiovascular system, often requiring multiple medications to control blood pressure. Weight loss surgery frequently leads to blood pressure normalization.
Key Symptoms
Treatment Approach
Bariatric surgery reduces blood pressure through weight loss and metabolic improvements. Studies show 60-70% of patients with obesity-related hypertension achieve normal blood pressure or reduced medication needs after surgery. Cardiovascular risk factors improve significantly within the first year.
Failed Previous Bariatric Surgery
Some patients experience inadequate weight loss, weight regain, or complications after initial bariatric surgery. Revision bariatric surgery addresses these issues by converting one procedure to another, repairing anatomical problems, or addressing complications from previous operations.
Key Symptoms
Treatment Approach
Bariatric surgeons perform revision procedures including band removal with conversion to sleeve or bypass, sleeve conversion to gastric bypass or duodenal switch, gastric bypass revision, and pouch/stoma revision. Revision surgery requires advanced expertise but can help patients achieve renewed weight loss and resolve complications.
Non-Alcoholic Fatty Liver Disease (NAFLD)
Accumulation of excess fat in the liver not caused by alcohol, strongly associated with obesity. NAFLD can progress to inflammation (NASH), fibrosis, cirrhosis, and liver failure. Weight loss surgery is one of the most effective treatments for reversing NAFLD.
Key Symptoms
Treatment Approach
Bariatric surgery produces significant improvements in NAFLD, with studies showing resolution of fatty liver in up to 90% of patients. Weight loss reduces liver fat content, decreases inflammation, and can reverse fibrosis in many cases. Surgery is particularly beneficial for patients with NASH who are at risk for progressive liver disease.
Obesity-Related Joint Disease
Excess body weight places enormous stress on weight-bearing joints, accelerating cartilage breakdown and causing or worsening osteoarthritis. Many obese patients are told they need joint replacement but cannot have surgery until they lose weight.
Key Symptoms
Treatment Approach
Bariatric surgery significantly reduces joint stress through substantial weight loss. Many patients experience dramatic pain relief and improved mobility, with some avoiding or delaying joint replacement. Weight loss also makes patients better candidates for orthopedic surgery when needed, with fewer complications and better outcomes.
Metabolic Syndrome
A cluster of conditions including abdominal obesity, high blood pressure, elevated blood sugar, high triglycerides, and low HDL cholesterol that together dramatically increase the risk of heart disease, stroke, and diabetes. Bariatric surgery addresses the root cause by achieving substantial weight loss.
Key Symptoms
Treatment Approach
Bariatric surgery improves all components of metabolic syndrome simultaneously. Studies show resolution rates of 80-95% for metabolic syndrome after weight loss surgery. The metabolic benefits occur through weight loss, hormonal changes, and improved insulin sensitivity, reducing cardiovascular disease risk by 30-50%.
Important Note
This list represents common conditions but is not exhaustive. Bariatric Surgeons treat many other conditions related to their specialty. If you're experiencing symptoms or have concerns, consult with a qualified bariatric surgeon for a proper evaluation.
What to Expect During Your Visit
Understanding what happens during your appointment can help you feel more prepared. Here's what you can typically expect when visiting a bariatric surgeon.
Your First Visit
- Comprehensive evaluation of your weight history, previous weight loss attempts, and current health conditions
- Calculation of BMI and discussion of whether you meet criteria for bariatric surgery
- Review of obesity-related conditions including diabetes, sleep apnea, and cardiovascular disease
- Detailed explanation of surgical options (gastric bypass, sleeve gastrectomy, duodenal switch, revision procedures)
- Discussion of expected weight loss outcomes, benefits, and potential risks for each procedure
- Overview of the comprehensive weight loss program including nutrition counseling, psychological evaluation, and medical clearances
- Review of insurance requirements and timeline for approval
- Initial bariatric surgery consultations typically last 45-90 minutes
Diagnosis & Testing
- Body composition analysis: BMI calculation and assessment of fat distribution and body composition
- Laboratory tests: Complete metabolic panel, lipid profile, hemoglobin A1c, liver function tests, vitamin levels, thyroid function
- Cardiac evaluation: EKG and potentially cardiac clearance from cardiologist for high-risk patients
- Sleep study: Polysomnography to diagnose or assess severity of sleep apnea
- Upper endoscopy: EGD to evaluate the stomach and esophagus for conditions like hiatal hernia, ulcers, or H. pylori infection
- Abdominal imaging: Ultrasound to assess for gallstones and fatty liver disease
- Psychological evaluation: Assessment by psychologist or psychiatrist to evaluate readiness for surgery and identify eating disorders or mental health concerns
- Nutritional assessment: Meeting with registered dietitian to evaluate eating habits and prepare for post-surgery diet
Treatment Options
- Sleeve gastrectomy: Removal of approximately 80% of the stomach, creating a banana-shaped tube that limits food intake and reduces hunger hormones
- Roux-en-Y gastric bypass: Creation of a small stomach pouch connected directly to the small intestine, bypassing most of the stomach and upper intestine
- Duodenal switch/SADI-S: A combination of sleeve gastrectomy with intestinal bypass for patients with higher BMI or severe metabolic disease
- Adjustable gastric band (Lap-Band): Placement of an adjustable silicone band around the upper stomach (less common now due to lower effectiveness)
- Revision surgery: Conversion from one procedure to another or repair of complications from previous bariatric surgery
- All primary procedures performed laparoscopically with 4-6 small incisions and 1-2 night hospital stay
- Comprehensive post-operative program with dietary progression from liquids to soft foods to regular diet over 6-8 weeks
- Lifelong follow-up including nutritional monitoring, vitamin supplementation, and annual labs
Tip for Your Visit
Bring a list of current medications, previous test results, and questions you want to ask. Writing down your symptoms—when they occur and what affects them—helps your bariatric surgeon provide accurate diagnosis and effective treatment.
How to Choose the Right Bariatric Surgeon
Finding the right healthcare provider is important for your health and peace of mind. Here are key factors to consider when selecting a bariatric surgeon.
Credentials to Verify
- Board certified by the American Board of Surgery (ABS) in General Surgery
- Fellowship training in bariatric surgery, minimally invasive surgery, or advanced laparoscopic surgery
- Practices at an MBSAQIP (Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program) accredited center
- Active, unrestricted medical license in your state
- Fellow of the American Society for Metabolic and Bariatric Surgery (FASMBS) designation indicates commitment to the field
- Member of ASMBS (American Society for Metabolic and Bariatric Surgery)
Important Considerations
- Surgeon's volume and experience - surgeons performing 100+ bariatric procedures annually typically have better outcomes
- Center accreditation through MBSAQIP ensures quality standards and comprehensive program resources
- Availability of all procedure types so recommendations are based on your needs, not limited surgical options
- Comprehensive program with nutritional counseling, psychological support, and support groups
- Experience with revision procedures if you had previous bariatric surgery
- Complication rates and outcomes data for the surgeon and center
- Long-term follow-up program commitment (not just surgery but lifetime care)
- Insurance and financial counseling services to navigate approval and payment
- Patient reviews and testimonials from weight loss surgery patients
- Proximity for convenient follow-up appointments, especially in the first year
Quick Tip
Don't hesitate to schedule consultations with multiple bariatric surgeons before making your decision. The right fit isn't just about credentials—it's also about feeling comfortable and confident in your care.
Cost and Insurance Information
Understanding the costs associated with seeing a bariatric surgeon can help you plan for your healthcare needs.
Average Costs (Without Insurance)
Initial Visit
$200-$400
Follow-up Visit
$100-$200
Common Procedures
Note: These are estimated average costs and can vary based on location, provider, and specific services required.
Insurance Coverage
- Many major insurance plans now cover bariatric surgery when medical criteria are met
- Coverage typically requires documented BMI of 40+ or BMI 35-39.9 with obesity-related comorbidities
- Most insurers require 3-6 months of supervised medical weight loss before approval
- Prior authorization is always required and can take 2-4 weeks after submission
- Documentation of previous weight loss attempts is usually required
- Psychological evaluation and nutritional counseling are typically required for approval
- Some states have mandated bariatric surgery coverage (check your state requirements)
- Self-pay and financing options are available for patients without coverage
- MBSAQIP-accredited centers often have higher insurance approval rates
Medicare Information
Medicare covers bariatric surgery for beneficiaries with BMI of 35 or higher and at least one obesity-related comorbidity. Surgery must be performed at an MBSAQIP-accredited center (previously required COE certification). Medicare covers gastric bypass, sleeve gastrectomy, and duodenal switch procedures. Standard Medicare cost-sharing applies with Part A covering hospital stay and Part B covering surgeon fees at 80% after deductible. No mandatory pre-operative diet period is required by Medicare, though individual surgeons may require it.
Money-Saving Tips
- 1Always verify your bariatric surgeon is in-network before scheduling
- 2Ask about self-pay discounts if you don't have insurance
- 3Inquire about payment plans for expensive procedures
- 4Get prior authorization when required to avoid claim denials
- 5Use FSA or HSA funds for eligible medical expenses
Questions to Ask Your Bariatric Surgeon
Being prepared for your appointment helps you get the most out of your time with your doctor. Here are important questions to consider asking a bariatric surgeon.
How many bariatric procedures do you perform each year, and what are your complication rates?
Is your center accredited by MBSAQIP (Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program)?
Which procedure do you recommend for my specific situation, and why?
What is the complete cost including pre-operative testing, surgery, and follow-up care?
What are your requirements before surgery (supervised diet period, psychological evaluation, etc.)?
How long will the pre-operative process take from first visit to surgery date?
What is your approach to managing complications if they occur?
What does your long-term follow-up program include, and how often will I need appointments?
Do you perform revision surgery if I had a previous bariatric procedure?
What support services do you offer (nutrition counseling, support groups, psychological support)?
What are realistic expectations for weight loss with the procedure you recommend?
How do you help patients who experience weight regain after initial success?
Pro Tip
Write down your questions before your appointment and bring them with you. Don't hesitate to take notes during your visit or ask for written instructions.
When to Seek Emergency Care
Know when symptoms require immediate attention versus a scheduled appointment.
While most conditions can wait for a scheduled appointment with a bariatric surgeon, certain symptoms require immediate emergency care. Go to the emergency room or call 911 if you experience:
- Severe abdominal pain that is sudden, intense, or worsening after bariatric surgery - may indicate leak, obstruction, or internal hernia requiring emergency surgery
- Fever over 101.5F with abdominal pain or rapid heart rate after surgery - may indicate infection or leak
- Persistent vomiting with inability to keep down liquids for 24+ hours - may indicate stricture, obstruction, or dehydration
- Chest pain or difficulty breathing - may indicate blood clot (pulmonary embolism), a serious post-operative complication
- Signs of internal bleeding: rapid heart rate, dizziness, weakness, dark or bloody stools, vomiting blood
- Leg pain with swelling, redness, or warmth - may indicate deep vein thrombosis (DVT) requiring immediate treatment
- Severe dehydration: extreme thirst, dark urine, dizziness, confusion - common in early post-op period if unable to drink adequately
- Wound separation, increasing redness, or pus drainage from incision sites indicating possible infection
EMERGENCY
Call 911 or nearest ER
URGENT
Doctor or urgent care
NON-URGENT
Regular appointment
Bariatric Surgeon vs. Other Specialists
Understanding the differences between medical specialists helps you choose the right provider for your needs.
Bariatric Surgeon vs. General Surgeon
A bariatric surgeon is a general surgeon with specialized fellowship training and focused practice in weight loss and metabolic surgery. While general surgeons have broad training across many surgical areas, bariatric surgeons concentrate on procedures like gastric bypass, sleeve gastrectomy, and revision surgeries. Bariatric surgeons typically work in comprehensive weight loss programs with dietitians, psychologists, and support staff specifically trained in obesity care. For weight loss surgery, a fellowship-trained bariatric surgeon at an accredited center offers specialized expertise and better outcomes than a general surgeon who performs occasional bariatric procedures.
Bariatric Surgeon vs. Endocrinologist
An endocrinologist is a medical specialist who treats hormonal disorders including obesity and diabetes using medications, lifestyle interventions, and medical management. A bariatric surgeon treats severe obesity through surgical procedures that produce dramatic, lasting weight loss. Endocrinologists may manage patients with medical weight loss programs using medications like semaglutide (Wegovy/Ozempic) or tirzepatide (Zepbound/Mounjaro), while bariatric surgeons offer surgical options when medical management is insufficient. Many patients see both specialists, with the endocrinologist managing metabolic conditions and the bariatric surgeon providing surgical treatment when indicated.
Bariatric Surgeon vs. Gastroenterologist
A gastroenterologist is a medical specialist who diagnoses and treats digestive system disorders using endoscopy, medications, and non-surgical interventions. A bariatric surgeon performs surgical procedures for weight loss. Gastroenterologists may perform endoscopic sleeve gastroplasty (Accordion procedure) or place intragastric balloons as less invasive weight loss options, while bariatric surgeons offer more definitive surgical procedures. Bariatric patients often see gastroenterologists for pre-operative upper endoscopy, post-operative complications like strictures, or ongoing digestive issues. The two specialties complement each other in comprehensive obesity care.
Bariatric Surgeon vs. Plastic Surgeon
A bariatric surgeon performs the primary weight loss surgery that helps patients lose significant weight. A plastic surgeon addresses the excess skin and body contour issues that often develop after major weight loss. Many bariatric surgery patients develop loose, hanging skin on the abdomen, arms, thighs, and breasts after losing 100+ pounds. Plastic surgeons perform body contouring procedures such as panniculectomy, abdominoplasty (tummy tuck), brachioplasty (arm lift), and breast lift typically 12-24 months after weight loss stabilizes. These are separate but complementary specialties in the weight loss journey.
Not sure which specialist you need?
Your primary care physician can help determine the right specialist for your condition and provide a referral if needed.
Sources & References
Information about bariatric surgeons is sourced from peer-reviewed medical literature and authoritative organizations.
Last updated: March 2026
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Frequently Asked Questions
Common questions about bariatric surgeon
What is the difference between gastric sleeve and gastric bypass?
Gastric sleeve (sleeve gastrectomy) removes about 80% of the stomach, leaving a banana-shaped tube. It is simpler, has no intestinal rerouting, and preserves normal digestion but may cause reflux in some patients. Gastric bypass (Roux-en-Y) creates a small stomach pouch and reroutes the small intestine, combining restriction with mild malabsorption. Bypass typically produces slightly more weight loss (65-80% vs 60-70% excess weight loss), has higher diabetes remission rates, and can treat existing reflux but requires lifelong vitamin supplementation due to bypassed intestine. Your bariatric surgeon will recommend the best option based on your BMI, health conditions, and goals.
How much weight will I lose after bariatric surgery?
Weight loss varies by procedure and individual factors. Gastric sleeve patients typically lose 60-70% of excess body weight within 12-18 months. Gastric bypass patients lose 65-80% of excess weight. Duodenal switch produces the highest weight loss at 70-85% of excess weight but has more nutritional considerations. For example, if you are 100 pounds over your ideal weight, you might expect to lose 60-80 pounds with surgery. Maximum weight loss usually occurs at 12-24 months, followed by some stabilization or modest regain of 5-10% in the following years with proper lifestyle maintenance.
Is bariatric surgery safe?
Modern bariatric surgery has an excellent safety profile when performed by experienced surgeons at accredited centers. The mortality rate is approximately 0.1-0.2%, similar to gallbladder removal and lower than hip replacement surgery. Serious complications occur in about 3-5% of patients and may include bleeding, infection, leaks, blood clots, or bowel obstruction. Minimally invasive (laparoscopic) techniques have significantly reduced complication rates. Choosing an MBSAQIP-accredited center and high-volume surgeon further reduces risk. The long-term health risks of remaining severely obese typically far exceed the surgical risks.
Will my insurance cover bariatric surgery?
Many commercial insurance plans cover bariatric surgery when medical criteria are met, typically BMI of 40+ or BMI 35-39.9 with obesity-related conditions like diabetes, sleep apnea, or hypertension. Most insurers require pre-operative requirements including 3-6 months of supervised medical weight loss, psychological evaluation, and nutritional counseling. Medicare covers bariatric surgery at MBSAQIP-accredited centers. Some states mandate bariatric coverage. Your bariatric program will have insurance specialists who can verify your coverage and guide you through the approval process. Self-pay options with financing are available for those without coverage.
How long is the recovery after bariatric surgery?
Most bariatric surgery patients spend 1-2 nights in the hospital after laparoscopic procedures. You can usually return to sedentary work in 1-2 weeks and resume full activities, including exercise, in 4-6 weeks. Diet progression is gradual: clear liquids for the first week, then pureed foods, soft foods, and finally regular food by 6-8 weeks post-surgery. You will need to eat slowly, chew thoroughly, and eat much smaller portions permanently. Most patients feel significant energy improvement within the first month as they begin losing weight.
Will I need to take vitamins after bariatric surgery?
Yes, lifelong vitamin and mineral supplementation is required after bariatric surgery. At minimum, all patients need a high-quality bariatric multivitamin, calcium with vitamin D, and vitamin B12. Gastric bypass and duodenal switch patients have higher supplementation needs due to intestinal bypass and malabsorption. Iron supplementation is often needed, especially for menstruating women. Your bariatric team will monitor your labs regularly (every 3-6 months initially, then annually) and adjust supplements as needed. Taking your vitamins consistently is one of the most important factors for long-term health after surgery.
Can I get pregnant after bariatric surgery?
Yes, and many women experience improved fertility after weight loss surgery as obesity-related hormonal issues resolve. However, you should wait 12-18 months after surgery before becoming pregnant to allow your weight to stabilize and ensure adequate nutrition. During this rapid weight loss period, pregnancy is not recommended. Once cleared, bariatric patients can have healthy pregnancies but require close monitoring of nutrition and vitamins by both their bariatric team and obstetrician. Women of childbearing age should use reliable contraception immediately after surgery, as fertility often improves rapidly with weight loss.
What happens if I regain weight after bariatric surgery?
Some weight regain is normal (typically 10-15% of lost weight) after the initial weight loss honeymoon period. Significant regain can occur if eating habits return to pre-surgery patterns, grazing occurs throughout the day, or high-calorie liquid intake (alcohol, sugary drinks) becomes regular. If you experience significant regain, your bariatric team can help identify causes and solutions. Options include nutritional counseling, behavioral intervention, medical weight loss support, and in some cases, revision surgery to repair a stretched pouch or convert to a more effective procedure. Early intervention for weight regain leads to better outcomes.
What is dumping syndrome?
Dumping syndrome is most common after gastric bypass and occurs when food (especially sugar and simple carbohydrates) moves too quickly from the stomach pouch into the small intestine. Early dumping (15-30 minutes after eating) causes nausea, cramping, diarrhea, dizziness, and sweating. Late dumping (1-3 hours after eating) causes low blood sugar symptoms like weakness, shakiness, and sweating. While uncomfortable, dumping syndrome is not dangerous and actually helps many patients avoid high-sugar foods. It can be prevented by avoiding sugary foods, eating slowly, not drinking with meals, and choosing protein and complex carbohydrates.
Am I too old for bariatric surgery?
Age alone is not a contraindication for bariatric surgery. Many surgeons perform successful procedures on patients in their 60s and even 70s when overall health permits. Older patients often have more obesity-related conditions that improve significantly with surgery. However, the risk-benefit analysis is individualized. Your bariatric surgeon will evaluate your overall health, functional status, and ability to comply with post-operative requirements. Older patients may have longer recovery times and should have realistic expectations. Studies show that older patients still achieve significant weight loss and health improvements, though results may be somewhat more modest than younger patients.
Medical disclaimer: This content is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you have a medical emergency, call 911. Our editorial standards