Medicare's Coverage of Transcranial Magnetic Stimulation

Medicare covers transcranial magnetic stimulation (TMS) for treatment-resistant depression, but only under specific conditions. The treatment must be performed in an outpatient setting, your doctor must have documented that you have tried at least four antidepressant medications without success, and the procedure must be done by or under the supervision of a psychiatrist or other may have access to physician. Original Medicare (Part B) pays 80 percent of the approved amount after you meet your annual deductible; you pay the remaining 20 percent.

TMS is a non-invasive procedure that uses magnetic pulses to stimulate nerve cells in the brain. It is performed in a doctor's office or clinic, typically over several weeks. Medicare's coverage decision reflects that the treatment has shown benefit for people whose depression has not responded to standard medication, but the agency limits it to this specific use rather than other conditions researchers are studying.

Key Takeaways

  • Medicare Part B covers TMS for treatment-resistant depression when you have tried at least four different antidepressant medications without adequate response.
  • The procedure must be performed by or supervised by a psychiatrist or may have access to physician in an outpatient setting.
  • You pay 20 percent of the Medicare-approved amount after meeting your Part B deductible; the exact cost depends on your provider and location.
  • Medicare does not cover TMS for other conditions such as bipolar disorder, anxiety, or chronic pain, even if your doctor recommends it.
  • If you have a Medicare Advantage plan, coverage may differ, so you should contact your plan directly to confirm what it covers.

What "Treatment-Resistant Depression" Means to Medicare

Medicare defines treatment-resistant depression as depression that has not improved after you have tried at least four separate antidepressant medications at adequate doses for adequate duration. Your doctor must document this history in your medical record before TMS can be covered. The medications do not all have to be from different drug classes, but Medicare reviewers will look at whether you gave each one a fair trial—typically at least four to six weeks at a therapeutic dose.

This definition matters because it determines whether Medicare will pay. If you have tried only two or three medications, or if you have not been on them long enough, your claim may be denied. Your psychiatrist or treating physician should be familiar with Medicare's documentation requirements and can help may support your medical record reflects the treatment history clearly.

How Much You Will Pay Out of Pocket

Your out-of-pocket cost for TMS depends on whether you have Original Medicare alone or a Medicare Advantage plan, and on your provider's location and billing practices. With Original Medicare, you pay 20 percent of the Medicare-approved amount after you have met your annual Part B deductible (which is $240 in 2024, though this amount changes yearly). A full course of TMS typically involves 20 to 30 sessions over four to six weeks, so your total 20 percent share could range from several hundred to several thousand dollars depending on the approved amount in your area.

If you have a Medigap supplemental policy, it may cover some or all of your 20 percent coinsurance, depending on which Medigap plan you hold. If you have a Medicare Advantage plan, your cost-sharing will follow your plan's rules, which may include copays per session rather than coinsurance. Contact your plan or your provider's billing department before starting treatment to understand your exact responsibility.

Medicare Advantage Plans and TMS Coverage

Medicare Advantage plans (Part C) must cover at least what Original Medicare covers, but they can add their own rules. Some plans may require prior authorization before you start TMS, meaning your doctor must get approval from the plan before the first session. Others may impose additional restrictions, such as limiting the number of sessions covered or requiring you to try a different treatment first.

Because coverage rules vary by plan and by year, you should contact your Medicare Advantage plan's customer service line before scheduling TMS. Ask whether the plan covers TMS for treatment-resistant depression, whether prior authorization is required, what your copay or coinsurance will be per session, and whether there is a limit on the total number of sessions. Your doctor's office can often help with this step by calling the plan on your behalf.

Conditions Medicare Does Not Cover TMS For

Medicare does not cover TMS for depression that is not treatment-resistant, even if your doctor believes you would benefit. The agency also does not cover TMS for bipolar disorder, anxiety disorders, post-traumatic stress disorder, chronic pain, or other conditions, even though some research suggests the treatment may help. If your doctor recommends TMS for one of these conditions, you would need to pay out of pocket or look for a clinical trial.

Some private insurance plans cover TMS more broadly than Medicare does, so if you have retiree health coverage or other supplemental insurance, check that plan's rules separately. The fact that Medicare does not cover a treatment does not mean it is ineffective—it means Medicare has not yet determined there is enough evidence to pay for it in those situations.

How to Move Forward if Your Doctor Recommends TMS

If your psychiatrist or doctor recommends TMS, start by confirming that your medical record documents your antidepressant trial history. Your doctor's office should have a record of which medications you have taken, at what doses, and for how long. If your records are incomplete or scattered across multiple providers, ask your current doctor to gather them and create a summary for the TMS provider.

Next, contact the clinic or hospital where you would receive TMS and ask whether they accept Medicare and whether they handle prior authorization requests. Many TMS providers are experienced with Medicare's requirements and can guide you through the process. They can also tell you the Medicare-approved amount for TMS in your area, which will help you calculate your 20 percent share. If you have a Medicare Advantage plan, provide the plan name and number so the TMS provider can check your specific coverage before you begin.

What Happens if Medicare Denies Your Claim

If Medicare denies coverage for TMS, the denial letter will explain the reason—usually that your medical record does not show four adequate antidepressant trials, or that the procedure was not ordered by a may have access to physician, or that it was performed in an inpatient setting rather than outpatient. You have the right to appeal the decision. The appeal process has multiple levels: reconsideration by Medicare, then a hearing before an administrative law judge if you disagree with the reconsideration.

Your doctor or the TMS provider can help you gather additional medical records or documentation to support an appeal. If you believe the denial was incorrect, ask your doctor's office or the TMS clinic whether they have experience appealing Medicare denials for TMS. Some providers appeal routinely and know which additional documentation Medicare reviewers find persuasive. You can also contact your State Health Insurance information Program (SHIP) for free help understanding your appeal rights.

Frequently Asked Questions

Does Medicare cover TMS for depression that is not treatment-resistant?

No. Medicare covers TMS only for treatment-resistant depression, defined as depression that has not improved after at least four antidepressant medication trials. If you have tried fewer medications or have not been on them long enough, Medicare will not pay for TMS.

Can I get TMS as an inpatient in a hospital and have Medicare pay?

No. Medicare covers TMS only when it is performed in an outpatient setting—a doctor's office, clinic, or hospital outpatient department. If TMS is performed during an inpatient hospital stay, Medicare will not cover it under this benefit.

What if my Medicare Advantage plan denies TMS but my doctor says I need it?

You can ask your doctor to appeal the denial or request a peer-to-peer review, in which your doctor speaks directly with a physician at the plan. You also have the right to file a complaint with your state's insurance commissioner. If the plan's denial seems incorrect, your State Health Insurance information Program can review your case and advise you on next steps.

Will my Medigap plan pay for the 20 percent I owe after Medicare?

It depends on which Medigap plan you have. Plans C, D, G, and M cover coinsurance, so they would pay your 20 percent. Plans A, B, F, K, L, and N have different coverage rules. Check your Medigap policy documents or call your Medigap insurer to confirm what it covers for TMS.

How do I know if my doctor is may have access to to order TMS under Medicare rules?

Medicare requires that TMS be ordered by a psychiatrist or other may have access to physician. Your doctor should be able to tell you whether they meet Medicare's qualifications. If you are unsure, ask the TMS clinic directly—they work with Medicare regularly and can confirm whether your doctor's credentials satisfy the requirement.