Does Express Scripts Cover Mounjaro? Insurance Guide 2026
Bold opening Navigating insurance coverage for Mounjaro can be complex, especially when dealing with major pharmacy benefit managers like Express Scripts. As a dual-purpose medication for type 2 diabetes and chronic weight management, Mounjaro has gained significant attention—but does Express Scripts cover it? This guide breaks down Mounjaro coverage under Express Scripts, including costs, prior authorization requirements, and steps to take if denied. Whether you’re using Mounjaro for diabetes or weight loss, understanding your insurance benefits is key to accessing this treatment affordably.
Does Express Scripts Cover Mounjaro for Diabetes?
Express Scripts generally covers Mounjaro (tirzepatide) for type 2 diabetes under most commercial insurance plans, but coverage depends on your specific policy. Since Mounjaro is FDA-approved for improving blood sugar control in adults with type 2 diabetes, many Express Scripts-administered plans include it as a preferred or non-preferred brand-name medication. However, coverage may require prior authorization, step therapy (trying other medications first), or meeting clinical criteria like an A1C above a certain threshold.
Some Express Scripts plans may classify Mounjaro under a higher tier, leading to higher out-of-pocket costs. If your plan excludes Mounjaro or places it on a non-covered list, you may need to appeal or explore patient assistance programs. Always check your Express Scripts formulary or contact customer service to confirm whether Mounjaro is covered for diabetes management under your specific plan.
Does Express Scripts Cover Mounjaro for Weight Loss?
Express Scripts coverage for Mounjaro as a weight-loss treatment is less consistent than for diabetes. While Mounjaro is FDA-approved for chronic weight management (under the name Zepbound), Express Scripts may not cover it for weight loss unless your plan explicitly includes obesity treatments. Many employer-sponsored or commercial insurance plans exclude weight-loss medications, even if they cover Mounjaro for diabetes.
If your Express Scripts plan does cover Mounjaro for weight loss, you’ll likely need prior authorization, proof of a BMI ≥30 (or ≥27 with weight-related comorbidities), and documentation of failed lifestyle interventions. Some plans may require step therapy, such as trying generic alternatives first. If Express Scripts denies coverage for weight loss, you can appeal with a letter of medical necessity from your provider or explore manufacturer savings programs.
How Much Does Mounjaro Cost With Express Scripts?
The cost of Mounjaro with Express Scripts varies widely based on your insurance plan, copay tier, and whether you meet deductible requirements. Without insurance, Mounjaro can cost over $1,000 per month, but Express Scripts members typically pay a copay ranging from $25 to $150 per fill, depending on their plan’s formulary tier. Some high-deductible plans may require you to pay the full negotiated price until your deductible is met.
Express Scripts may also offer savings programs or discounts for Mounjaro, particularly if it’s listed as a preferred brand. Additionally, Eli Lilly’s patient assistance program can reduce costs for eligible patients. To estimate your out-of-pocket expense, log in to your Express Scripts account or use their price-check tool. If Mounjaro is too expensive, ask your doctor about alternatives or copay cards.
Mounjaro Prior Authorization for Express Scripts
Most Express Scripts plans require prior authorization for Mounjaro, meaning your doctor must submit clinical documentation justifying the need for the medication. For diabetes, this may include recent A1C levels, failed responses to other diabetes drugs, or contraindications to alternatives like metformin or GLP-1 agonists. For weight loss, prior authorization typically requires proof of BMI, weight-related health conditions (e.g., hypertension, sleep apnea), and evidence of unsuccessful weight-loss attempts.
The prior authorization process can take Express Scripts 3–14 days to review. If approved, coverage is usually granted for 6–12 months before reauthorization is needed. If denied, your doctor can appeal by providing additional medical records or a letter of medical necessity. Working with your healthcare provider to submit thorough documentation improves your chances of Express Scripts approving Mounjaro.
How to Get Express Scripts to Cover Mounjaro
To increase the likelihood of Express Scripts covering Mounjaro, start by verifying your plan’s formulary status. If Mounjaro is listed, your doctor should submit a prior authorization request with detailed clinical notes, including:
- For diabetes: A1C levels, history of failed treatments, and risk of complications.
- For weight loss: BMI, weight-related comorbidities, and documentation of lifestyle interventions.
If Express Scripts initially denies coverage, request a peer-to-peer review where your doctor discusses your case directly with an Express Scripts medical director. You can also appeal the decision in writing, attaching supporting evidence. Additionally, Eli Lilly offers a savings card that may reduce your copay, even if Express Scripts covers Mounjaro at a higher tier.
What to Do If Express Scripts Denies Mounjaro
If Express Scripts denies Mounjaro coverage, you have several options. First, request a formal denial letter outlining the reason, then file an appeal with your doctor’s support. Your appeal should include:
- A letter of medical necessity.
- Lab results or clinical notes proving Mounjaro is medically necessary.
- Evidence of failed alternatives.
If the appeal is denied, you can escalate to an external review through your state’s insurance department. Alternatively, explore Eli Lilly’s patient assistance program, which provides Mounjaro at a reduced cost or free for qualifying low-income patients. Some patients also switch to a different insurance plan during open enrollment that includes Mounjaro in its formulary.
Express Scripts Alternatives If Mounjaro Is Not Covered
If Express Scripts does not cover Mounjaro, consider alternatives like:
- Ozempic or Wegovy (semaglutide): Often covered by Express Scripts for diabetes or weight loss, though prior authorization may still apply.
- Trulicity (dulaglutide): Another GLP-1 agonist that may be more accessible.
- Saxenda (liraglutide): FDA-approved for weight loss but may have different coverage criteria.
- Compounded tirzepatide: Some pharmacies offer compounded versions at a lower cost, though efficacy and safety may vary.
If your Express Scripts plan excludes all weight-loss medications, discuss lifestyle modifications or surgical options with your doctor. You can also explore switching to a different insurance provider during open enrollment that includes Mounjaro in its coverage.
Frequently Asked Questions
Does Express Scripts cover Mounjaro for weight loss?
Express Scripts may cover Mounjaro for weight loss if your plan includes obesity treatments, but many exclude it. Prior authorization is typically required, and denials are common without proof of medical necessity.
How much is the Mounjaro copay with Express Scripts?
Copays for Mounjaro with Express Scripts range from $25 to $150, depending on your plan’s formulary tier. High-deductible plans may require full payment until the deductible is met.
Can I appeal if Express Scripts denies Mounjaro?
Yes, you can appeal a denial by submitting a letter of medical necessity, clinical records, and evidence of failed alternatives. Your doctor can also request a peer-to-peer review with Express Scripts.
Disclaimer from Editorial Team This article provides general information about Mounjaro coverage under Express Scripts and is not a substitute for professional medical or insurance advice. Coverage varies by plan, and individual circumstances may differ. Always consult your Express Scripts plan documents or a healthcare provider for personalized guidance.