Short answer: Medicare covers certain bariatric surgical procedures for eligible patients with morbid obesity. Coverage is not automatic for every weight-loss procedure or every patient.
Original Medicare coverage
Medicare lists gastric bypass surgery and laparoscopic banding among the bariatric procedures that may be covered. The procedure must be medically necessary and the patient must meet Medicare’s conditions related to morbid obesity. The surgeon and facility must meet Medicare requirements.
Part A applies when the surgery is performed during a covered inpatient hospital admission. Part B applies to covered physician services and qualifying outpatient care. Medicare does not cover transportation to a bariatric surgery center as part of the bariatric surgery benefit.
Eligibility and limits
The treating medical team must document that the patient meets the applicable clinical requirements. Coverage may depend on the type of procedure, diagnosis, facility, and local Medicare rules. A recommendation from a provider does not by itself guarantee payment.
Services before and after surgery, including consultations, laboratory testing, nutrition services, and follow-up care, may have separate coverage requirements. Weight-loss programs and services that are not part of a covered treatment plan may not be covered.
Costs
Costs depend on whether the procedure is inpatient or outpatient and on the services required. Part A hospital deductibles and coinsurance may apply to an inpatient stay. The Part B deductible and coinsurance may apply to surgeon, anesthesia, and outpatient services. Ask the facility for a written estimate.
Medicare Advantage
Medicare Advantage plans must cover Medicare-covered bariatric surgery. The plan may require an in-network surgeon or facility, documentation of eligibility, and prior authorization. Follow the plan’s rules before scheduling surgery.
What to do next
- Ask the surgeon which procedure is planned and why it meets Medicare requirements.
- Confirm that the surgeon and facility participate in Medicare or your plan.
- Determine whether the procedure will be inpatient or outpatient.
- Request estimates for the facility, surgeon, anesthesia, and follow-up care.
Coverage is determined from the claim, the patient’s eligibility, provider status, and applicable Medicare rules. A provider’s recommendation does not guarantee payment. Before a planned service, ask the provider what will be billed and ask Medicare or the plan whether any coverage review is required.
Sources
Last reviewed: August 2026. Medicare rules and plan benefits can change.