Medicaid covers some weight loss medications, but coverage rules vary significantly by state and by which medication you need

Medicaid does cover weight loss medications in most states, but the medications covered, the conditions you must meet, and how much you pay out of pocket depend on your state's Medicaid program. Some states cover newer medications like semaglutide (Wegovy, Ozempic) and tirzepatide (Zepbound, Mounjaro) under certain circumstances. Others cover only older medications like phentermine. A few states do not cover weight loss medications at all except in cases of severe obesity with related health problems.

Coverage also depends on whether your doctor prescribes the medication for weight loss alone or for a related condition — type 2 diabetes, for example. A medication prescribed for diabetes may be covered even if your state's Medicaid program does not typically cover it for weight loss. The only way to know what your state covers is to contact your Medicaid program directly or ask your doctor's office to check your coverage before you fill a prescription.

Key Takeaways

  • Medicaid coverage for weight loss medications varies by state; some cover newer medications like semaglutide and tirzepatide, while others cover only older options like phentermine.
  • Your state's Medicaid program may require your doctor to document that you have obesity plus a related health condition like diabetes or high blood pressure before approving the medication.
  • The same medication may be covered if prescribed for diabetes or heart disease but not if prescribed for weight loss alone, depending on your state's rules.
  • Your doctor's office or your state Medicaid program can tell you whether a specific medication is covered under your plan before you fill a prescription.
  • Prior authorization — a requirement that your doctor get approval from Medicaid before prescribing — is common for weight loss medications and can add one to two weeks to the process.

Which medications your state's Medicaid program covers

Phentermine, an older appetite suppressant, is covered by Medicaid in most states. It is typically approved for short-term use — usually 12 weeks or less — and costs less than newer medications. Many state programs cover it with few restrictions beyond a doctor's prescription.

Semaglutide (Wegovy when prescribed for weight loss, Ozempic when prescribed for diabetes) and tirzepatide (Zepbound for weight loss, Mounjaro for diabetes) are covered by some state Medicaid programs but not others. As of early 2024, states including California, New York, and Massachusetts cover these medications for Medicaid members who meet specific criteria. Other states do not cover them for weight loss at all, though they may cover them if your doctor prescribes them for type 2 diabetes. Coverage is expanding, but slowly — check with your state program for the current list.

Orlistat, a medication that reduces fat absorption, is available over the counter at lower doses and by prescription at higher doses. Many state Medicaid programs cover the prescription version, though some require you to try diet and exercise first or to have a BMI above a certain threshold.

What your doctor must document before Medicaid will cover the medication

Most state Medicaid programs require your doctor to show that you have obesity — usually defined as a BMI of 30 or higher — plus at least one related health condition. Common conditions that may have access to include type 2 diabetes, high blood pressure, heart disease, sleep apnea, or joint problems related to weight. Some states require the condition to be documented in your medical record before your doctor even submits the request for approval.

Your doctor must also document that you have tried diet and exercise changes, though the length of time required varies. Some states ask for evidence of a three-month effort; others require six months or longer. A few states waive this requirement if you have severe obesity or multiple related conditions. Your doctor's office should know your state's specific rules and can tell you what documentation you need before submitting a request.

Some state programs also require that the medication be prescribed by a specific type of doctor — an endocrinologist, for example, or a doctor who specializes in weight management. Check your state's rules before scheduling an appointment with a new provider, because seeing an out-of-network doctor or a doctor not on your state's approved list can mean the program will not cover the medication.

Prior authorization and how long approval takes

Prior authorization is a requirement that your doctor get written approval from your state Medicaid program before you fill the prescription. Most state programs require prior authorization for weight loss medications, especially the newer ones like semaglutide and tirzepatide. Your doctor's office submits the request, which includes your medical history, your BMI, documentation of related health conditions, and proof that you have tried other weight loss methods.

Approval typically takes one to two weeks, though it can take longer if your state program asks for additional information. During this time, you cannot fill the prescription. If your doctor's office does not hear back within the expected timeframe, they should follow up — some requests get lost in the queue. Ask your doctor's office to give you a timeline when they submit the request and to contact you if approval is delayed.

Cost and what you pay out of pocket

If Medicaid covers the medication, your out-of-pocket cost depends on your state's Medicaid program and your specific plan. Some state programs charge a small copay — usually $1 to $5 per prescription — for weight loss medications. Others charge a higher copay or require you to pay a percentage of the cost. A few state programs cover the full cost with no copay.

Newer medications like semaglutide and tirzepatide are expensive — the full retail price is often $900 to $1,300 per month — so even a small copay can add up over time. If your state Medicaid program covers the medication but your copay is high, ask your doctor whether a generic or older medication might work for you, or whether the manufacturer offers a patient assistance program that could lower your cost.

What to do if your state does not cover the medication your doctor recommended

If your state's Medicaid program does not cover the medication your doctor wants to prescribe, ask whether it covers the medication for a different condition. Semaglutide, for example, may not be covered for weight loss but may be covered for type 2 diabetes. If you have diabetes or another condition that qualifies, your doctor can prescribe it for that condition instead, and you may be able to use it for weight loss as a secondary benefit.

If your state does not cover any weight loss medications or if you do not meet your state's requirements, ask your doctor about older medications like phentermine, which most states cover more readily. You can also ask whether your doctor's office knows of any patient assistance programs run by the medication's manufacturer — many companies offer free or reduced-cost medication to people who cannot afford it, regardless of insurance status.

Some states have programs that cover weight loss medications through specific managed care plans within Medicaid. If you have a choice of plans during open enrollment, you can ask each plan whether they cover the medication you need. Switching plans takes time, so do this during your state's open enrollment period, not in the middle of the year.

How weight loss medication coverage differs from other Medicaid benefits

Weight loss medications are treated differently from many other medications because they are considered preventive rather than treatment for an acute illness. This means your state has more flexibility in deciding whether to cover them, and coverage rules can change from year to year as state budgets shift. A medication that was covered last year might not be covered this year, or coverage might be expanded to include more people.

Because of this, it is worth checking your state's coverage rules every time you need a refill or every year during open enrollment. Your state Medicaid program's website usually lists which weight loss medications are covered, though the list may not be updated immediately when rules change. Calling your state program directly is the fastest way to get current information.

Frequently Asked Questions

Will Medicaid cover semaglutide or tirzepatide for me?

It depends on your state and whether you meet your state's requirements. Some states cover these medications for Medicaid members with obesity plus a related health condition like diabetes. Others do not cover them for weight loss at all. Contact your state Medicaid program or ask your doctor's office to check your coverage before your doctor submits a prior authorization request.

What if my doctor says I need the medication but my state does not cover it?

Ask your doctor whether the medication is covered for a different condition you have, like diabetes or heart disease. If not, ask about older medications your state does cover, like phentermine. You can also ask whether the medication's manufacturer offers a patient assistance program that provides free or reduced-cost medication to people who cannot afford it.

Do I need prior authorization before I can fill a weight loss medication prescription?

Most state Medicaid programs require prior authorization for weight loss medications, especially newer ones. Your doctor's office submits the request, which usually takes one to two weeks for approval. Ask your doctor's office for a timeline and whether they will contact you if approval is delayed.

Can I switch to a different Medicaid plan if my current plan does not cover the medication I need?

Yes, but only during your state's open enrollment period, which is usually once a year. Some managed care plans within Medicaid cover weight loss medications that others do not. Check each plan's coverage before open enrollment ends so you can switch if needed.

How much will I have to pay out of pocket for a weight loss medication if Medicaid covers it?

Your copay depends on your state's Medicaid program and your specific plan. It can range from $1 to $5 per prescription for some programs to a higher copay or percentage of the cost for others. Ask your state program or your plan what your copay will be before your doctor fills the prescription.