The federal government funds Medicare, the United States national health insurance program for those 65 and older. Medicare provides extensive coverage for various medical services, but some requirements must be completed before the program pays for a particular operation. Bariatric surgery, a procedure designed to help individuals with severe obesity lose weight, is a topic of interest for many Medicare beneficiaries. Does Medicare cover bariatric surgery? This article will explore Medicare bariatric surgery, eligibility requirements, and available coverage options.

Understanding Medicare Bariatric Surgery:

Before diving into Medicare coverage, it is essential to understand what it entails. Several procedures that aid in weight loss fall under the umbrella term “bariatric surgery.” The most frequent types of bariatric surgery are gastric bypass, gastric sleeve, and adjustable gastric band. These procedures either restrict food intake or alter the digestive process, leading to reduced calorie absorption.

Medicare Coverage for Bariatric Surgery:

Medicare coverage for bariatric surgery depends on the specific circumstances of the beneficiary. Medicare will often pay for bariatric procedures, but strict criteria must be met first. Here are the key factors to consider:

a) Medicare Part A Coverage: Medicare Part A, which covers hospital services, is generally responsible for covering the costs associated with bariatric surgery. This includes hospital stay expenses, surgical procedures, anesthesia, and post-operative care. However, it is crucial to note that Part A coverage applies only to inpatient procedures, where the patient stays overnight in a hospital.

b) Medicare Part B Coverage: Medicare Part B covers outpatient services and may also contribute to bariatric surgery costs. Part B covers services such as doctor’s fees, diagnostic tests, and follow-up visits. It’s best to talk to your surgeon and your Medicare service provider to determine if you qualify for Part B coverage.

Medicare Eligibility Requirements for Bariatric Surgery:

To qualify for Medicare coverage for bariatric surgery, certain eligibility criteria must be met. The Centers for Medicare and Medicaid Services (CMS) have established the following requirements:

a) Body Mass Index (BMI) Criteria: Medicare typically covers bariatric surgery for individuals with a body mass index (BMI) of 35 or higher. However, Medicare may consider funding the operation with a BMI as low as 30 if the patient has at least one obesity-related health condition, such as type 2 diabetes or hypertension.

b) Documented Failed Attempts at Weight Loss: Medicare often requires documented evidence of previous failed attempts at weight loss to demonstrate the medical necessity of bariatric surgery. This may include supervised dieting, exercise programs, or other weight-loss interventions. It is crucial to check with the healthcare professional for particular requirements, including the exact number of attempts required.

c) Physician Evaluation and Referral: A physician’s evaluation and referral are usually necessary before Medicare can consider covering bariatric surgery. The evaluation will assess the patient’s overall health, previous weight loss attempts, and the potential benefits and risks of the procedure.

Additional Considerations:

While Medicare coverage for bariatric surgery is available, there are some additional considerations to keep in mind:

a) Coverage Limitations: Medicare coverage for bariatric surgery extends only to medically necessary procedures. Cosmetic surgeries or procedures for weight loss without medical indications are generally not covered.

b) Medicare Advantage Plans: It’s important to double-check with your doctor for specific instructions, such as the number of times you can try. These plans may provide additional coverage for bariatric surgery beyond what Original Medicare offers (Part A and Part B). It is advisable to review the specific details of the Medicare Advantage Plan to determine the extent of coverage for bariatric surgery.

Steps to Obtain Medicare Coverage for Bariatric Surgery:

a) Consultation with Healthcare Providers: The first step in pursuing Medicare coverage for bariatric surgery is to consult with healthcare providers specializing in weight loss and bariatric procedures. These providers can assess your medical history, evaluate your eligibility based on Medicare criteria, and guide you through the process.

b) Documentation of Medical Necessity: To establish medical necessity, gathering and maintaining thorough documentation of your weight loss journey is crucial. This may include medical records, documented failed attempts at weight loss, and any obesity-related health conditions you may have. You will have a better case for Medicare reimbursement if you give as much evidence as possible.

c) Referral and Evaluation: As mentioned earlier, a physician’s referral and evaluation are typically required by Medicare. The doctor will examine the big picture to decide if bariatric surgery is best for you. They may also conduct additional tests or consultations with specialists to further support the need for the procedure.

d) Pre-authorization Process: Once the medical necessity is established, the healthcare provider will initiate the pre-authorization process with Medicare. This involves submitting the required documentation, including the physician’s evaluation, medical records, and supporting test results. Make sure all paperwork is complete and timely to avoid waiting for authorization.

e) Medicare Coverage Decision: After the pre-authorization process, Medicare will review the submitted documentation to determine whether coverage for bariatric surgery will be approved. The decision is typically based on the eligibility requirements and medical necessity criteria. It’s crucial to remember that Medicare’s decision could take some time and that the agency might ask for further details in some cases.

f) Out-of-Pocket Expenses: While Medicare covers a significant portion of bariatric surgery costs, beneficiaries may still have out-of-pocket expenses. Depending on the specific Medicare plan and coverage, these expenses may include deductibles, copayments, or coinsurance. To better understand your financial responsibilities, you should check the specifics of the Medicare plan and discuss prospective expenses with the healthcare practitioner.

Post-Surgery Care and Support:

a) Follow-up Visits: After undergoing bariatric surgery, regular follow-up visits with your healthcare provider are crucial for monitoring your progress, managing potential complications, and providing necessary support. Medicare Part B typically covers these follow-up visits, ensuring that you receive the necessary care and guidance throughout your weight loss journey.

b) Support Groups and Counseling: Adjusting to life after bariatric surgery can be challenging, and having access to support groups and counseling can be immensely beneficial. These resources provide a platform for sharing experiences, addressing concerns, and receiving guidance from individuals who have undergone similar procedures. It is recommended to research Medicare Advantage plans to see if they include coverage for support groups and counseling.

c) Continued Lifestyle Changes: Bariatric surgery is not a standalone solution for weight loss but a tool to aid the journey. It is crucial to commit to making permanent adjustments to one’s lifestyle, such as eating healthier, getting more exercise, and dealing with any underlying emotional or psychological reasons that may be contributing to weight gain. Medicare beneficiaries may have access to additional resources, such as nutrition counseling, to support these ongoing lifestyle changes.


In conclusion, Medicare does cover bariatric surgery for eligible individuals who meet the established criteria. Eligibility can only be determined after careful consideration of the prerequisites and discussion with medical professionals. Medicare beneficiaries should also consider Medicare Advantage Plans as an alternative for additional coverage options. With careful evaluation and proper documentation, individuals struggling with severe obesity can explore the possibility of bariatric surgery as a means to improve their overall health and well-being.


Q1. Does Medicare cover the cost of bariatric surgery?

A1. Yes, Medicare may cover bariatric surgery if certain criteria are met.

Q2. What criteria must be met for Medicare coverage of bariatric surgery?

A2. To qualify for Medicare, a person must have a body mass index (BMI) of 35 or higher with at least one comorbidity connected to obesity or a BMI of 40 or higher without any such ailment. You must also have documented unsuccessful attempts at non-surgical weight loss.

Q3. Does Medicare cover all types of bariatric surgery procedures?

A3. The most prevalent forms of bariatric surgery, including gastric bypass, gastric sleeve, and laparoscopic adjustable gastric banding, are typically covered by Medicare.

Q4. Is a referral required for Medicare coverage of bariatric surgery?

A4. Yes, a referral from a qualified healthcare provider is typically required for Medicare to consider coverage of bariatric surgery.

Q5. Does Medicare cover the full cost of bariatric surgery?

A5. Medicare typically covers 80% of the approved amount for bariatric surgery. Unless you have supplementary insurance, the remaining 20% of any bill will be your responsibility as a copayment or coinsurance.

Q6. Are there any limitations on the frequency of Medicare-covered bariatric surgery?

A6. Medicare generally covers bariatric surgery as a one-time procedure unless additional surgery is deemed medically necessary due to complications or other specific circumstances.

Q7. Does Medicare cover pre-surgical consultations and evaluations for bariatric surgery?

A7. Yes, Medicare covers pre-surgical consultations, evaluations, and testing necessary to approve and prepare for bariatric surgery.

Q8. Are there any age restrictions for Medicare coverage of bariatric surgery?

A8. Medicare does not have a specific age restriction for bariatric surgery coverage. However, the surgery must be deemed medically necessary and appropriate for the individual’s overall health.

Q9. Does Medicare cover post-surgical follow-up care and support after bariatric surgery?

A9. Medicare covers medically necessary post-surgical follow-up care, including office visits, laboratory tests, and nutritional counseling.

Q10. How can I find healthcare providers who accept Medicare for bariatric surgery?

A10. You can use the “Physician Compare” tool on the Medicare website, contact Medicare directly for a list of providers, or consult with your healthcare provider for recommendations on bariatric surgeons who accept Medicare.