Humana Bariatric Surgery Coverage: Tiers, Gold Plus Plans & Requirements

Most people thinking about Humana and bariatric surgery don’t realize Humana’s commercial business — the part that covers working-age employees — is actually separate from its Medicare Advantage business, which is where Humana is most dominant. If you have Humana through your employer, you’re dealing with one set of policies. If you have a Humana Gold Plus HMO through Medicare, you’re dealing with another. Let’s sort out which is which.

Humana’s Two Worlds: Commercial vs. Medicare Advantage

Humana commercial plans — These serve employer groups. Humana commercial plans vary based on what the employer purchased. Bariatric surgery coverage is typically available but requires opting in and meeting Humana’s standard clinical criteria.

Humana Medicare Advantage (Gold Plus, HMO, PPO) — Humana is one of the top two Medicare Advantage insurers in the country. These plans serve Medicare-eligible members (65+ or qualified disabled). Coverage for bariatric surgery mirrors original Medicare’s criteria.

Humana Commercial Plans: Coverage Criteria

For commercial (employer-sponsored) Humana plans, coverage criteria align with the NIH framework:

• BMI ≥ 40 — covered without comorbidities if plan includes bariatric benefit
• BMI 35–39.9 — requires documented obesity-related comorbidity (diabetes, hypertension, sleep apnea, cardiovascular disease, or hyperlipidemia)
• Age typically 18–65 in standard commercial policies
• Failed conservative treatment — documentation of prior supervised weight loss attempts

Additional requirements Humana commonly imposes:

• Physician-supervised weight management program: three to six months documentation
• Psychiatric or psychological evaluation
• Dietary/nutritional assessment
• Medical clearance from treating physician(s)

According to KFF data, Humana covers approximately 5.8 million commercial members, though their Medicare Advantage enrollment exceeds that significantly.

Humana Gold Plus (Medicare Advantage HMO)

Humana Gold Plus is an HMO-model Medicare Advantage plan, meaning you must use in-network providers and typically need referrals from your primary care physician. For bariatric surgery:

Coverage criteria mirror original Medicare:

• BMI ≥ 35
• At least one obesity-related comorbidity
• Required to use Medicare-certified bariatric facilities
• Pre-operative evaluation and clearances required

Network restriction is the critical issue with Gold Plus. Because it’s an HMO, you cannot go out-of-network for elective procedures like bariatric surgery (except emergencies). You must confirm that your preferred bariatric surgeon and hospital are in the Gold Plus network for your specific plan area before scheduling.

Referral requirement. Your PCP must provide a referral to the bariatric surgeon. This is procedural but creates an additional step. Some patients get delayed because their PCP isn’t familiar with bariatric referrals or is reluctant to make one.

Humana’s Other Medicare Advantage Plans

Beyond Gold Plus, Humana offers:

Humana Gold Choice (PFFS) — Private Fee-for-Service; more provider flexibility, though still Medicare Advantage. Bariatric coverage mirrors Medicare criteria.

Humana Choice (PPO) — PPO-model MA plan; in-network benefits are better than out-of-network but out-of-network coverage exists. Better flexibility than HMO for bariatric care if network is limited.

Humana Honor (for military veterans) — Separate product for veteran populations; coordinate with VA coverage if applicable (see our VA bariatric surgery guide).

Prior Authorization Under Humana

Humana requires prior authorization for bariatric procedures across all plan types. Key timelines:

• Standard PA review: up to 14 calendar days (or 15 business days depending on plan)
• Expedited review (when delay would cause harm): 72 hours
• Medicare Advantage PA: federally regulated timelines apply

Submission requirements typically include:

• Surgeon’s PA request with CPT codes
• Clinical notes documenting BMI history
• Supervised weight loss program records
• Comorbidity documentation (labs, EHR notes)
• Psychological evaluation
• Nutritional assessment

Procedures Humana Covers

When Humana Denies Coverage

Common Humana denial reasons:

• Plan doesn’t include bariatric benefit (especially for smaller employer groups)
• Non-covered procedure type
• BMI documentation gaps
• Incomplete supervised diet records
• Psychological evaluation missing or insufficient
• Out-of-network facility (especially for Gold Plus HMO)

Appeal options:

• Internal appeal within Humana: submit within 60 days of denial
• External independent review: for fully insured plans
• Medicare Advantage appeals: specific CMS-mandated process; stricter timelines for Humana MA plans

Out-of-Pocket Costs Under Humana

With prior authorization and an in-network facility, your Humana cost-sharing for bariatric surgery will typically be:

• Commercial plans: After deductible, coinsurance of 10–30% in-network; out-of-pocket max applies
• Medicare Advantage: Copays per service (surgical copay varies by plan); annual out-of-pocket max applies

The difference in out-of-pocket exposure between using an in-network provider and an out-of-network one can be $5,000–$15,000 or more. Network compliance isn’t optional if you want predictable costs.

For help financing any remaining out-of-pocket costs, see our guides on CareCredit, personal loans, and payment plans.