Paying for Mental Health Care

Medicare Coverage for TMS: The Current Rules

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Medicare generally covers TMS for depression as an outpatient Part B service when clinical criteria are met. Under Original Medicare you typically pay the Part B deductible and then coinsurance, often 20%, for each session. Medigap can offset that share, and Medicare Advantage may add prior-authorization rules.

Last updated: July 2026

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Does Medicare cover TMS for depression?

Generally, yes. Medicare covers outpatient mental-health care under Part B when clinical criteria are met, and TMS for major depression is provided in that outpatient setting 1. As with commercial insurers, Medicare treats TMS as a treatment for depression that has not responded adequately to medication, so its own coverage policies set documentation and medical-necessity requirements. Coverage is not automatic for every request, and a clinic still confirms that your history meets the criteria before billing. The starting point, though, is simple. TMS sits within the outpatient mental-health benefit Medicare already provides rather than being excluded outright.

What will you pay under Original Medicare?

With Original Medicare, cost-sharing follows the standard Part B pattern. You first meet the annual Part B deductible, and CMS publishes the exact deductible and premium figures for each year, including 2026 3. After the deductible, you generally pay coinsurance, commonly 20% of the Medicare-approved amount, for each covered service 2. Applied to TMS, that 20% attaches to every session in the course, not to the course as a whole. Knowing the difference between a deductible and coinsurance makes it easier to see why the first session and later sessions can cost you different amounts.

How does a course multiply the coinsurance?

A single session's 20% may feel manageable, but a course is many sessions delivered over several weeks, so the coinsurance repeats each visit. Under Original Medicare, there is no annual out-of-pocket maximum, which means that per-session share keeps accruing across the full course rather than stopping at a cap 2. That structural detail is why people on Original Medicare often look at supplemental coverage before starting a multi-week treatment. It is worth estimating the number of authorized sessions and multiplying by your expected per-session coinsurance so the total is visible up front rather than arriving bill by bill.

Can Medigap or Medicare Advantage change the math?

Both can. Medigap, or Medicare Supplement insurance, pays a share of Original Medicare out-of-pocket costs and can cover much of that repeating coinsurance. Enrolling during your 6-month Medigap open-enrollment window offers guaranteed issue without medical underwriting 4. Medicare Advantage works differently. These Part C plans must cover at least the same benefits as Original Medicare and must cap annual out-of-pocket costs. They may, however, use provider networks and prior authorization 5. So an Advantage plan can limit your yearly total while adding approval steps, whereas Medigap smooths the coinsurance on Original Medicare.

When to confirm the details with your plan

Medicare's rules set the frame, but your exact criteria, session count, and cost come from your specific coverage, so a direct check is worth the call. A TMS clinic can verify your benefits and tell you what each session will cost after your deductible, while your prescriber confirms your history meets the coverage policy. Because approval hinges on documented medication trials, it also helps to read what 'failing two antidepressants' means and to compare the figures with what TMS costs on commercial insurance. Gale can help you keep these coverage details and estimates organized in one place.

Common questions

Generally yes. Medicare covers TMS for major depression as an outpatient Part B service when its clinical and medical-necessity criteria are met. Coverage is not automatic for every request, so a clinic verifies your history against the policy before billing.

Under Original Medicare you typically pay the annual Part B deductible and then coinsurance, commonly 20% of the Medicare-approved amount, for each session. Because a course has many sessions and Original Medicare has no out-of-pocket cap, that share can add up.

Yes. Medigap policies pay a share of Original Medicare out-of-pocket costs and can cover much of the per-session coinsurance. Enrolling during your 6-month Medigap open-enrollment window offers guaranteed issue without medical underwriting.

Medicare Advantage plans must cover at least the same benefits as Original Medicare, so TMS is generally included, but these plans may use networks and prior authorization. They also cap annual out-of-pocket costs, which Original Medicare does not.

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A note on Medicare coverage

  • —If your depression worsens or you have thoughts of self-harm, you can call or text the 988 Suicide and Crisis Lifeline for free, confidential support any time.

This article offers general information about paying for and accessing TMS care; it is not medical advice, a diagnosis, or a guarantee of coverage. Your plan's medical policy and your clinician's judgment govern your situation. If your depression feels worse or you have thoughts of harming yourself, you can reach the 988 Suicide and Crisis Lifeline by calling or texting 988.

References

  1. 1.Centers for Medicare & Medicaid Services (CMS) (2025). Outpatient Mental Health Coverage. Medicare.gov. link ✓That Medicare Part B covers outpatient mental-health care when clinical criteria are met, and that beneficiaries share the cost through the Part B deductible and coinsurance.
  2. 2.Centers for Medicare & Medicaid Services (2024). What does Medicare cost?. Medicare.gov (CMS). link ✓That Medicare beneficiaries face premiums, deductibles, and coinsurance or copayments, and that Part B carries an annual deductible followed by coinsurance on covered services.
  3. 3.Centers for Medicare & Medicaid Services (2025). 2026 Medicare Parts A & B Premiums and Deductibles. CMS Newsroom Fact Sheet. link ✓That CMS announces the specific Medicare Part B premium, deductible, and coinsurance dollar amounts for each year, including the officially published 2026 figures.
  4. 4.Centers for Medicare & Medicaid Services (2024). Learn How Medigap Works. Medicare.gov (CMS). link ✓That Medigap (Medicare Supplement) insurance pays a share of Original Medicare out-of-pocket costs, requires enrollment in Parts A and B, and offers a 6-month open-enrollment window with guaranteed issue.
  5. 5.Centers for Medicare & Medicaid Services (2024). Medicare Advantage & other health plans. Medicare.gov (CMS). link ✓That Medicare Advantage (Part C) plans must cover at least the same benefits as Original Medicare, may use provider networks and prior authorization, and must cap annual out-of-pocket costs for Part A and B services.

5 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — every citation independently verified. Editorial policy

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