Does Medicare Cover Weight-Loss Drugs Like Wegovy and Zepbound?

The Old Rule, and Why It Mattered

Part D is the part of Medicare that covers prescription drugs, and federal law has long excluded drugs “used for anorexia, weight loss, or weight gain.” That meant a medication prescribed solely to treat obesity wasn’t covered, no matter how effective it was or how strongly a doctor recommended it. When GLP-1 drugs such as semaglutide (sold as Ozempic and Wegovy) and tirzepatide (sold as Mounjaro and Zepbound) became widely known, the exclusion became a major point of frustration for older adults, many of whom have the conditions that these drugs are meant to address.

It’s worth knowing that the exclusion never applied to everything these drugs do. Part D plans could and can cover a GLP-1 drug when it’s prescribed for a different, approved purpose. The best known example is type 2 diabetes, which is why Ozempic and Mounjaro have long been on many formularies. Some brand-name drugs in this class have also been approved for other uses, such as reducing cardiovascular risk in certain adults who have established heart disease and excess weight, or treating obstructive sleep apnea in adults with obesity, and Part D plans can cover them for those approved uses. The coverage follows the diagnosis and the approved indication, not just the drug name.

The GLP-1 Bridge Program

Under the program, which the federal government has described as a short-term demonstration while a longer-term approach is developed, eligible people can get certain GLP-1 drugs for weight management at a fixed copay of $50 for a one-month supply. According to CMS, it runs from July 1, 2026 through December 31, 2027. It was first scheduled to end in December 2026, and CMS extended it when it decided not to launch its longer-term model for Part D in 2027. As with any federal demonstration, details can change, so check Medicare.gov or call 1-800-MEDICARE (1-800-633-4227) for the most current rules before relying on anything here.

The drugs included are Wegovy (as an injection and as a tablet), Zepbound in its KwikPen form, and Foundayo, a tablet. The single-dose Zepbound pen and Zepbound vials are not part of the program. A few things distinguish this from ordinary drug coverage:

• It isn’t a regular Part D benefit. The program runs outside your Part D plan’s coverage, with a central processor handling the prior authorization, claims and pharmacy payments. The $50 copay isn’t a Part D plan copay, and it is the same no matter your income. Extra Help doesn’t change it.
• The $50 doesn’t count toward your Part D limits. Spending under the program doesn’t count toward your Part D deductible or toward the annual out-of-pocket cap on drug costs, and these drugs aren’t eligible for the Medicare Prescription Payment Plan.
• You need Part D coverage to participate. That means either a stand-alone prescription drug plan alongside Original Medicare, or a Medicare health plan that includes drug coverage. People with Original Medicare and no drug plan can’t use the program. Certain special plan types, such as private fee-for-service plans, cost contract plans and PACE organizations, aren’t eligible unless the person is also enrolled in a stand-alone drug plan.
• Prior authorization comes first. After the pharmacy sends the claim and Medicare confirms you are eligible, your prescriber submits a form certifying that you meet the criteria. CMS’s prescriber guidance says decisions are communicated within 72 hours of submission. Refills generally don’t need a new authorization as long as you stay on the same drug, even if the dose changes, but switching to a different covered drug requires a new one. Only 28-day or 30-day fills are covered.

GLP-1 Coverage at a Glance

Situation	How it works
Weight management, meets program criteria	$50 monthly copay through the GLP-1 Bridge, with prior authorization
Type 2 diabetes	Covered through Part D at your plan’s cost-sharing
Established heart disease or sleep apnea indication	May be covered through Part D
No Part D or drug coverage	Not eligible for the bridge program

Who Qualifies

The program has clinical criteria. According to CMS, an adult (18 or older) has to meet one of these combinations of body mass index and health conditions at the time therapy starts:

• A BMI of 35 or higher, regardless of other conditions.
• A BMI of 30 or higher along with certain conditions: chronic kidney disease at stage 3a or beyond, heart failure with preserved ejection fraction, or uncontrolled high blood pressure (CMS defines this as a reading above 140 over 90 despite treatment with two blood pressure medications).
• A BMI of 27 or higher along with prediabetes, a history of heart attack or stroke, or symptomatic peripheral artery disease.

There’s also an attestation involved: the prescriber certifies that the drug is being prescribed to reduce excess body weight and maintain the reduction, as part of a lifestyle program focused on diet and exercise. Some people are excluded because their drugs can already be covered another way. You aren’t eligible if you have type 2 diabetes, moderate-to-severe sleep apnea, or fatty liver disease (CMS says to contact your drug plan in those cases, since it may already cover a GLP-1 drug for you). You also aren’t eligible if your Part D plan has already been paying for a GLP-1 drug for you, for any reason. In that case you keep getting it through your plan. Taken together, the criteria mean the program is meant for a defined group, not for everyone who is overweight.

None of this is medical advice. Whether a GLP-1 drug is appropriate is a conversation to have with your doctor. These medications can cause side effects, most commonly digestive ones such as nausea, and they aren’t right for everyone.

What $50 a Month Really Means

A $50 monthly copay is a large reduction from the list price of these drugs, which has historically been well over a thousand dollars a month before any discount, though prices for these products have been changing. For people who qualify, that’s a meaningful difference. But a few things are worth thinking through.

First, $600 a year per drug is a real expense, and because it sits outside your Part D limits, it doesn’t help you reach the out-of-pocket cap. If you take other expensive medications, the bridge copay is on top of what you pay under your plan, not part of it.

Second, the program has an end date. The current bridge runs through the end of 2027, and what comes after it hasn’t been settled. A longer-term federal approach has been discussed, but the terms aren’t final. That uncertainty matters if you’re thinking about starting a drug you’d plan to take for years. Ask your doctor what the plan would be if the cost changed.

Third, weight-loss medications often work only as long as you keep taking them, and stopping can lead to regaining weight. That’s a clinical question for you and your prescriber, but it’s relevant to budgeting.

What About Medicare Advantage and Medigap?

Medicare Advantage: If your Advantage plan includes prescription drug coverage, you can generally participate in the bridge, which counts Medicare health plans with drug coverage (including special needs plans) as eligible. If your plan doesn’t include drug coverage, you can’t. Private fee-for-service plans and some other special plan types are excluded unless you also have a stand-alone drug plan. Check your Evidence of Coverage or call the plan, or call 1-800-MEDICARE if you’re not sure what type of plan you have. Many Advantage plans do include drug coverage, but not all do.

Medigap: Medicare Supplement plans don’t cover outpatient prescription drugs at all, so a Medigap policy has no role here. If you have Original Medicare and a Medigap plan, you’d need a separate Part D plan to join the program. Our article on Medicare Part D explains how stand-alone drug plans work.

If you don’t have Part D: You can’t just sign up whenever you like. Joining a drug plan generally requires an enrollment period, and the Annual Enrollment Period runs from October 15 to December 7 each year. Going without drug coverage when you’re first eligible can lead to a lifetime late-enrollment penalty unless you had other creditable coverage, so don’t treat Part D as optional just because you aren’t taking drugs today. Our guide to turning 65 explains the timing rules.

Other Ways GLP-1 Drugs Can Be Covered

Even outside the bridge, there are routes to coverage for these drugs when they’re prescribed for approved medical purposes:

• Type 2 diabetes: Part D plans commonly cover GLP-1 drugs approved for diabetes, with cost-sharing set by the plan’s tier structure.
• Cardiovascular risk reduction, sleep apnea and liver disease: Some GLP-1 products are approved for these uses in specific patients (for example, moderate-to-severe obstructive sleep apnea in adults with obesity), and Part D plans can cover them for those purposes. Coverage depends on your plan’s formulary and prior authorization rules.
• Formulary exceptions: If a drug you need isn’t on your plan’s formulary, you can ask your plan for an exception, and your doctor will need to explain why alternatives wouldn’t work.

If you have diabetes, it can matter which route your drug is covered under. The same drug can be handled differently depending on the reason it’s prescribed, so make sure the diagnosis on the prescription is accurate and that your doctor knows how your plan treats it. If your plan is already covering a GLP-1 drug for you, the bridge isn’t an alternative route, and you keep getting it through your plan.

TRICARE and VA Beneficiaries

Military retirees and veterans have their own pharmacy benefits, and those work differently from Part D. TRICARE For Life beneficiaries generally use the TRICARE Pharmacy Program, and veterans enrolled in VA health care get prescriptions through the VA. Whether those programs cover a weight-loss drug, and under what criteria, is determined by each program, not by Medicare’s bridge. If you’re in one of these groups, ask TRICARE or the VA directly. We’re an independent agency, not affiliated with the VA, TRICARE, or the Department of Defense. Our guide to Medicare and TRICARE For Life explains how the pieces fit together.

Questions to Ask Before You Start

If you think you may qualify, a few questions will keep you out of trouble:

• Do I have Part D coverage, either stand-alone or through an Advantage plan?
• Does my BMI and health history meet the criteria, and will my doctor submit the prior authorization?
• Which of the three drugs is my doctor recommending, and why? (Remember that switching from one covered drug to another needs a new prior authorization.)
• What will I pay each month, and does that fit my budget if I take it for a long time?
• What’s the plan if the program ends or changes while I’m still taking the drug?
• Will my pharmacy send the claim to the bridge program rather than to my drug plan, and does it have the drug in stock?

Be wary of anyone offering to “get you approved” for these medications for a fee, or calling to say Medicare is giving them away. Genuine access goes through your prescriber and your Part D coverage, and Medicare doesn’t make unsolicited sales calls. Our post on Medicare scams lists more warning signs.

Frequently Asked Questions

Does Medicare cover Wegovy for weight loss?

Through the GLP-1 Bridge program, eligible people with Part D coverage can get Wegovy for weight management for a $50 monthly copay, with prior authorization. Outside the program, Part D generally doesn’t cover drugs used solely for weight loss.

Does Medicare cover Ozempic?

Part D plans can cover Ozempic when it’s prescribed for type 2 diabetes. Coverage and cost-sharing depend on your plan’s formulary.

Does Medicare cover Zepbound?

The Zepbound KwikPen is one of the drugs in the GLP-1 Bridge program for eligible people with Part D. Zepbound vials and the single-dose pen aren’t included. Part D plans may also cover Zepbound for approved uses such as moderate-to-severe obstructive sleep apnea in adults with obesity.

How long does the Medicare GLP-1 Bridge program last?

It started July 1, 2026 and is scheduled to run through December 31, 2027. Check Medicare.gov for the latest information, as details can change.

Do I need Part D to use the program?

Yes. You need either a stand-alone Part D plan or a Medicare health plan that includes drug coverage. Private fee-for-service, cost contract and PACE plans are excluded unless you also have a stand-alone drug plan.

Will my $50 copay count toward my Part D out-of-pocket limit?

No. Spending under the bridge program doesn’t count toward your Part D deductible or the annual out-of-pocket cap.