Medicare Supplement Plan G MRI Coverage Explained

Does Medicare cover MRI and CT scans?

Yes. Original Medicare Part B generally covers medically necessary MRI and CT scans when a provider orders them to diagnose or treat a medical problem. The scans can help investigate symptoms, confirm a diagnosis, or guide treatment, but an order alone does not guarantee payment; Medicare’s rules and the scan’s location matter.

Medicare Supplement Plan G MRI coverage applies only after Medicare approves the service. Plan G helps with eligible Original Medicare cost-sharing; it cannot establish medical necessity or make a non-covered scan payable.

What costs can Medicare charge for an MRI or CT scan?

For a covered test in a doctor’s office or independent imaging center, you generally pay the Part B deductible, then 20% of Medicare’s approved amount. A hospital outpatient department may add a separate copayment. Ask the ordering provider for a written estimate that explains the setting and any facility charge.

With Medicare Supplement Plan G MRI coverage, Plan G generally pays the Part B coinsurance or copayment for covered services after you meet the annual Part B deductible. You pay that deductible yourself. Afterward, Plan G can make eligible Part B cost-sharing more predictable.

How does the imaging location affect Medicare coverage?

The location matters: hospital outpatient scans may include a separate facility copayment, while certain advanced CT and MRI services outside hospitals must be performed by an accredited provider for Medicare to pay. Confirm the imaging center’s accreditation before scheduling, along with whether your scan is expected to be covered.

Before scheduling, confirm the facility type, estimated cost, and whether it includes a facility copayment. If a different or additional scan is recommended, ask whether Medicare covers it and why it is needed.

What should you ask before scheduling an MRI or CT scan?

Four questions can help you clarify coverage and your share before a scan: 1. What medical problem is this scan intended to investigate or treat?
2. Is the scan expected to meet Medicare’s coverage requirements?
3. Is the location a hospital outpatient department or an independent imaging facility, and is it accredited when required?
4. What is my estimated share after the Part B deductible, including any facility copayment?

Keep the written order and estimate. If the center expects Medicare may not cover the test, ask why before agreeing to proceed; review your Medicare Summary Notice after processing to see the final decision.

How does Plan G fit into the bigger picture?

Medicare Supplement Plan G MRI coverage works alongside Original Medicare, not instead of it. Medicare decides whether a test is covered and pays its share first; Plan G then helps with eligible Part B cost-sharing after the Part B deductible. It cannot override medical-necessity or accreditation rules.

At Senior Healthcare Team in Boca Raton, Florida, I help clients in South Florida and across Florida understand how Plan G works with Original Medicare. Its standardized, comprehensive benefits and provider choice are why I consider Plan G the gold standard in Medicare Supplement coverage.

For more background, see Medicare Tutorial Video page or Contact page.

Frequently Asked Questions

Q: Does Medicare cover MRI scans?
A: Medicare Part B generally covers an MRI when a healthcare provider orders it to find or treat a medical problem and the test meets Medicare’s coverage rules. Where you receive the scan can affect coverage and costs.

Q: Does Medicare cover CT scans?
A: Medicare Part B generally covers medically necessary CT scans ordered by a healthcare provider to diagnose or treat a medical problem. Certain advanced imaging services outside a hospital must be provided by an accredited facility for Medicare to pay.

Q: Does Medicare Supplement Plan G pay for MRI or CT scan costs?
A: Plan G generally pays the Part B coinsurance or copayment for a Medicare-covered scan after you meet the annual Part B deductible. It does not pay the Part B deductible or make a non-covered scan covered.

Q: Does Plan G cover the Medicare Part B deductible?
A: No. You pay the annual Part B deductible yourself, and Plan G can help with eligible Part B coinsurance or copayments after that deductible is met.

Q: Does the location of my MRI or CT scan matter?
A: Yes. A hospital outpatient department may charge a separate facility copayment, and certain advanced imaging services outside hospitals must be performed by an accredited provider for Medicare to pay.

Q: If my doctor orders an MRI, will Medicare definitely cover it?
A: Not automatically. The test must meet Medicare’s coverage rules, and provider and location requirements may apply, so ask the ordering provider and imaging center to confirm coverage before the appointment.