With health insurance, most people pay somewhere between $100 and $600 out of pocket for an MRI, depending on their plan, the body part scanned, and where they get it done. The total billed cost of an MRI ranges from about $700 to over $5,400, but insurance absorbs the bulk of that. Your actual share depends on a few specific factors you can often control.
How Your Insurance Plan Splits the Cost
Your out-of-pocket share for an MRI usually comes in one of two forms: a copay (a flat dollar amount) or coinsurance (a percentage of the total bill). A common coinsurance arrangement is 80/20, meaning your insurer covers 80 percent and you pay 20 percent. On a $1,500 MRI, that puts your share at $300. On a $3,000 scan, it’s $600.
If you haven’t met your annual deductible yet, you could owe the full negotiated rate until you hit that threshold. This is the single biggest reason some insured patients end up with a surprisingly large bill. If your deductible is $2,000 and you’ve only spent $500 on care that year, you’d pay the next $1,500 before your coinsurance kicks in. On the other hand, if you’ve already met your deductible, you’ll only owe your coinsurance percentage or copay.
Medicare Part B covers 80 percent of an MRI once the annual deductible is met. If you get the scan at a hospital as an outpatient, you’ll also owe the hospital a separate copayment on top of your 20 percent.
Why the Facility You Choose Matters
Where you get your MRI can change the price more than almost any other variable. Hospital-based imaging centers charge, on average, 70 percent more than freestanding (independent) imaging centers for the same MRI scan. That means a scan billed at $1,000 at an independent center could be billed at $1,700 or more at a hospital for identical images on equivalent machines.
This price gap exists because hospitals bundle facility fees into the bill. The scan itself is the same, and the radiologist reading it may even be the same person. If your insurance plan covers both settings, choosing a freestanding center can cut your coinsurance share significantly. Many insurers now steer patients toward lower-cost facilities for exactly this reason, and some will flag cheaper options if you call and ask before scheduling.
Contrast Dye, Body Part, and Other Add-Ons
A standard MRI without contrast dye is the baseline price. When your doctor orders contrast (a dye injected through an IV to make certain tissues more visible), expect an additional $150 to $400 on top of the base cost. That covers the medication, IV setup, and extra scanning time. Contrast is common for brain, spine, and abdominal MRIs when the doctor needs to see inflammation, tumors, or blood vessel detail.
The body part also affects pricing. A simple knee MRI is generally on the lower end of the cost spectrum, while a cardiac MRI or a combined abdomen-and-pelvis scan tends to be on the higher end because of the complexity and time involved. If your doctor orders scans of multiple regions in one session, each region is billed separately.
Geographic Price Differences
MRI prices vary dramatically by state and even by city. A 2024 analysis of healthcare transparency data found that brain MRI costs can differ by a factor of six within the Northeast alone. Alabama, New Mexico, California, and Nevada consistently rank as the least affordable states for imaging relative to income, while Rhode Island, Arkansas, New Hampshire, and Oklahoma are among the most affordable. If you live near a state border or are willing to drive an extra 30 minutes, comparing prices across facilities in neighboring areas can yield real savings.
Prior Authorization: Getting Your Insurer to Approve It
Most insurance plans require prior authorization before they’ll cover an MRI. This means your doctor submits a request explaining why the scan is medically necessary, and a clinical reviewer compares it against evidence-based guidelines. If the request doesn’t meet those criteria, it gets denied, and you’d be responsible for the full cost if you proceed anyway.
What reviewers look for depends on the type of scan. For spine or joint MRIs, most insurers want to see that you tried conservative treatment first, like physical therapy or a supervised exercise program, unless there’s a documented neurological issue such as numbness, weakness, or loss of reflexes. Brain MRIs for headaches require documentation of worsening frequency, increasing intensity, or abnormal neurological findings on exam. Breast MRIs for cancer screening need your age and calculated lifetime risk percentage.
Your doctor handles the submission, but if you’re waiting on approval, it’s worth calling your insurer directly to check the status. Delays in authorization can push back your scan date by days or weeks.
How to Find Your Actual Price Before the Scan
You don’t have to guess what you’ll owe. Here’s how to narrow it down before you schedule:
- Call your insurer with the CPT code. Every MRI has a billing code that determines its price. Common ones include 70551 for a brain MRI without contrast, 72148 for a lumbar spine MRI without contrast, and 73721 for a knee or other lower-extremity joint MRI without contrast. Your doctor’s office can give you the exact code from the order. Your insurer can then tell you the negotiated rate at a specific facility and what your share will be based on your deductible status.
- Compare at least two facilities. Ask your insurer for the cost at both a hospital-based center and a freestanding imaging center in your network. The difference is often hundreds of dollars.
- Check your deductible status. Log into your insurance portal or call member services to see how much of your deductible you’ve already met this year. This single number determines whether you’ll pay coinsurance or a much larger share.
Balance Billing Protections
Under the No Surprises Act, you’re protected from surprise bills in certain situations. If you get an MRI at an in-network facility but the radiologist reading it happens to be out of network, that radiologist cannot bill you more than your in-network cost-sharing amount. Diagnostic services like radiology are specifically listed as ancillary services where balance billing is prohibited, even without your prior consent. This protection applies at participating facilities regardless of whether you knew the radiologist’s network status.
If you’re uninsured or choose to pay out of pocket, facilities are required to provide a good faith estimate of expected charges before your scheduled scan. That estimate must include not just the MRI itself but any related services you’d reasonably need, like contrast dye or the radiologist’s reading fee.