A PET scan (positron emission tomography), almost always performed today combined with a CT scan as PET/CT, uses a radioactive tracer, most commonly FDG (a labeled glucose molecule), to show how tissue is metabolizing at the cellular level. Oncologists order PET/CT to stage a new cancer diagnosis, check whether treatment is working, or look for recurrence after remission. Cardiologists order cardiac PET to assess whether heart muscle is still viable before a bypass or stent. Neurologists order brain PET, including newer amyloid-tracer PET, to help distinguish Alzheimer's disease from other causes of memory loss. The imaging itself takes 20 to 45 minutes, but the total visit runs 2 to 3 hours because the radioactive tracer needs 45 to 90 minutes to distribute through the body before scanning starts.
The single biggest cost driver is not the scanner, it is the site of service and the radiopharmaceutical tracer, both billed separately from the imaging fee itself. A whole-body oncology PET/CT that runs $1,800 at a freestanding imaging center can be billed at $5,500 for the identical scan at a hospital outpatient department, same scanner technology, often the same radiologist reading the images. The FDG tracer dose alone typically adds $300 to $1,200 depending on whether it is billed separately or bundled into the facility fee. Patients comparing imaging options should also look at CT scan cost, since a standalone CT without the PET component costs far less when a PET/CT is not clinically necessary.
The guide below covers what a PET scan costs without insurance in 2026, what Medicare pays under the Physician Fee Schedule and Hospital Outpatient PPS, how to request a Good Faith Estimate under the No Surprises Act, self-pay discount programs, and the billing errors most likely to inflate a PET scan bill. Original Medicare coverage of PET scans is governed by National Coverage Determination 220.6, consumer-facing coverage details are published at medicare.gov/coverage/diagnostic-non-laboratory-tests, and the full guidance on cost-estimate rights lives at cms.gov/nosurprisesact.
PET Scan Cost by Site of Service in 2026
The biggest cost driver of PET Scan is the site of service: where the procedure is performed. 2026 CMS price transparency data confirms a 2-3x billing differential between independent centers and hospital outpatient departments.
PET Scan prices without insurance vs. 2026 Medicare rates| Site of Service | Range Without Insurance | 2026 Medicare Rate |
|---|
| Independent / freestanding imaging center | $1,300 to $3,800 | $1,075 |
| Hospital outpatient department | $2,800 to $7,600 | $1,450 |
| Academic / NCI-designated cancer center | $3,500 to $8,500 | $1,450 |
| Mobile PET unit (rural / underserved area) | $1,500 to $3,200 | $1,075 |
2026 Medicare rates reflect the Physician Fee Schedule global (non-facility) payment for freestanding centers and the Hospital Outpatient PPS facility payment for CPT code group 78815/78816-equivalent PET/CT imaging. Without-insurance ranges reflect CMS Hospital Price Transparency files and national cash-price aggregator data. The radiopharmaceutical tracer cost is billed separately in many settings and is not always included in the ranges above.
Source: CMS 2026 Physician Fee Schedule, CMS 2026 Hospital Outpatient PPS Final Rule, KFF Cost Analysis, national cash-price aggregator data 2026
Why the Same Procedure Is So Much More at a Hospital
The 2026 PET scan cost chart above reflects a consistent pattern: hospital outpatient departments bill facility fees that independent imaging centers do not carry, overhead, 24-hour staffing, and often 340B drug pricing markups on the radiopharmaceutical itself. Academic and NCI-designated cancer centers frequently charge the highest cash prices because they combine hospital-based billing with specialized radiotracers (such as amyloid or PSMA agents) that cost more to produce and ship. The scanner, the technologist, and often the interpreting radiologist are functionally identical across sites.
The 2026 Medicare Hospital Outpatient PPS rate of approximately $1,450 for a PET/CT is nearly 35% higher than the approximately $1,075 global rate Medicare pays a freestanding imaging center for the same scan, and that gap widens further in cash-pay markets where hospitals can list chargemaster rates 3 to 4 times higher than independent centers. A separate professional interpretation fee, typically $75 to $150, may also appear when the reading radiologist bills independently from the facility.
The practical takeaway: ask your oncologist or cardiologist whether the PET/CT can be scheduled at an independent imaging center that has the appropriate cyclotron or tracer-delivery contract in place. Rural patients whose nearest fixed PET scanner is hours away should ask about mobile PET units, which several regional radiology networks operate on a weekly rotating schedule and typically price closer to independent-center rates than hospital rates.
PET Scan Cost by Type in 2026
Not every PET scan is priced or covered the same way. The tracer used, the body region imaged, and whether the indication meets Medicare's National Coverage Determination 220.6 all change both the price tag and whether insurance pays at all. Oncology PET/CT is the most common and best covered; brain PET for dementia workup has the narrowest coverage pathway.
Typical cost by variant| PET Scan Type | Range Without Insurance (2026) | Medicare Coverage Status |
|---|
| Oncology whole-body PET/CT (staging, restaging, treatment response) | $1,300 to $4,600 | Covered under NCD 220.6 for most qualifying cancer types |
| Cardiac PET (myocardial viability or perfusion) | $2,500 to $5,500 | Covered for viability assessment before revascularization and select perfusion indications |
| Brain FDG-PET (dementia differential diagnosis) | $3,000 to $6,000 | Coverage limited to a CMS-approved clinical study protocol |
| Amyloid PET (Alzheimer's biomarker imaging) | $4,500 to $7,600 | Coverage decisions made by local Medicare contractors since October 2023, no lifetime cap |
| PET/MRI (combined modality) | $3,800 to $8,500 | Coverage varies by MAC; most facilities bill using PET/CT-equivalent codes |
In October 2023, CMS retired the amyloid PET National Coverage Determination and ended coverage-with-evidence-development, removing the once-per-lifetime restriction. Local Medicare Administrative Contractors (MACs) now make coverage decisions for amyloid PET based on medical necessity. Brain FDG-PET for dementia workup remains covered only within an approved clinical study.
Source: CMS NCD 220.6 and 220.6.20, CMS Amyloid PET Decision Memo (2023), CMS 2026 Physician Fee Schedule
What Medicare Pays for PET Scan
Original Medicare covers PET scans under Medicare Part B when the indication meets National Coverage Determination 220.6, which covers most oncologic PET/CT uses (initial diagnosis, staging, restaging, and monitoring treatment response for many cancer types) and cardiac PET for myocardial viability assessment. The 2026 Medicare Physician Fee Schedule pays approximately $1,075 to a freestanding imaging center that bills the global PET/CT code, while the 2026 Hospital Outpatient PPS rate is approximately $1,450 for the same scan performed in a hospital outpatient department. After the 2026 Part B deductible of $283 is met, the beneficiary owes a 20% coinsurance. Medicare Advantage plans must cover the same PET scan benefit as Original Medicare, though prior authorization and network rules can differ by plan, check the plan's Summary of Benefits. Medigap policies can pick up the 20% Part B coinsurance for beneficiaries enrolled in Original Medicare.
Commercial insurance and ACA-compliant marketplace plans almost universally require prior authorization before a PET scan, this is one of the highest-cost imaging categories insurers review, and a scan performed without prior authorization can be denied entirely even if medically necessary. On a high-deductible health plan (HDHP), the full negotiated rate, often $1,800 to $4,500, applies to the deductible before any coinsurance kicks in. Commercial copay tiers for advanced imaging like PET/CT typically range from $100 to $500 per scan once the deductible is met, and out-of-network PET facilities can trigger balance billing unless the No Surprises Act's protections apply to the specific billing scenario.
Under the No Surprises Act, effective January 2022, any patient paying cash or who is uninsured has the right to a written Good Faith Estimate from the imaging center, hospital, or physician office before a PET scan is scheduled. For a PET scan scheduled at least 10 business days out, the provider must furnish the Good Faith Estimate at least 3 business days before service. For appointments scheduled 3 to 9 business days out, the Good Faith Estimate must arrive at least 1 business day before service. The federal consumer portal at cms.gov/nosurprisesact has the full guidance and the dispute-filing process.
To request a Good Faith Estimate for a PET scan in 2026, follow these steps: (1) call the imaging center, hospital, or ordering physician's office and identify yourself as self-pay or uninsured. (2) Ask for a written Good Faith Estimate that itemizes the PET/CT imaging code, the radiopharmaceutical tracer charge, the professional interpretation fee, and any sedation or additional imaging. (3) Provide your ZIP code and confirm which tracer your physician ordered, FDG for oncology and most cardiac indications, or an amyloid agent for dementia workup, since tracer cost varies widely. (4) Confirm the timing rule, 3 business days before service if scheduled 10 or more business days out, 1 business day before service if scheduled 3 to 9 business days out. (5) Keep the written Good Faith Estimate. If the final bill exceeds the estimate by $400 or more, you have 120 days from the bill date to file a patient-provider dispute resolution claim through the federal portal at cms.gov/nosurprisesact.
A Good Faith Estimate for a PET scan is not a guaranteed final bill. Common reasons the actual charges exceed the estimate include: a higher-than-anticipated radiopharmaceutical dose or a second tracer injection when the first scan is inconclusive, additional bed positions or delayed imaging when the tracer distribution is slower than expected, same-day biopsy or additional CT contrast added at the ordering physician's request, extended recovery or observation time after the tracer injection, and supplies or sedation not included in the original written estimate. If the final bill exceeds the Good Faith Estimate by $400 or more, the patient-provider dispute resolution process at cms.gov/nosurprisesact remains available for 120 days from the bill date.
What Factors Affect Cost
- Site of service, freestanding imaging center versus hospital outpatient department versus academic cancer center, the single biggest driver of a PET scan's cash price.
- Type of PET scan and radiopharmaceutical tracer used, FDG for most oncology and cardiac indications versus amyloid or PSMA tracers for dementia and prostate cancer, which can add $300 to $1,200 on top of the imaging fee.
- Insurance status, uninsured cash price versus in-network commercial negotiated rate versus Medicare's Physician Fee Schedule or Hospital Outpatient PPS rate.
- Independent imaging center cash bundles, national radiology networks and some freestanding PET centers publish flat self-pay prices 30 to 60 percent below hospital chargemaster cash rates.
- Hospital chargemaster discount ask, most hospitals publish a self-pay discount policy of 20 to 60 percent off the chargemaster list price, some apply it automatically when the patient identifies as uninsured, others require an explicit request.
- Sliding-scale pricing at academic and NCI-designated cancer center financial assistance programs, income-based charity care can reduce or eliminate the PET scan portion of a cancer treatment bill for patients below certain household-income thresholds.
- Prior authorization requirements, nearly universal for PET scans on Medicare Advantage and commercial plans, a denied or missing authorization can leave the full cash price with the patient even when the scan was medically necessary.
- Geographic region, urban academic-medical-center markets and the Northeast tend to price highest, rural mobile-PET-unit markets tend to price lowest.
Common PET Scan Billing Errors
PET scan bills carry an unusually high error rate because the radiopharmaceutical tracer, the imaging fee, and the professional interpretation are often billed by three separate entities. Check for these before paying:
- Radiopharmaceutical tracer billed as a separate line item in addition to the global PET/CT code, when the facility's contract with Medicare or the insurer requires it to be bundled into the facility fee.
- PET and CT components of a combined PET/CT billed as two separate full exams instead of the single combined code, roughly doubling the facility charge.
- Two radiologists billing separately for a double-read of the same scan when only one professional interpretation fee should apply.
- Out-of-network interpreting radiologist billed at out-of-network rates when the imaging facility itself is in-network, a scenario the No Surprises Act's balance-billing protections may cover, do not pay before checking.
- Additional bed positions or a repeat scan due to poor tracer uptake billed as an entirely new PET/CT study rather than an extension of the original encounter.
- A PET scan for a non-covered indication billed to Medicare without a signed Advance Beneficiary Notice (ABN) in advance, leaving the patient unaware they would owe the full cash price.
- Facility fee billed at hospital outpatient rates for a scan actually performed at an affiliated freestanding imaging center or mobile PET unit.
Frequently Asked Questions
How much does a PET scan cost without insurance in 2026?
Without insurance, a PET scan typically costs between $1,300 and $7,600 in 2026, with a national average near $4,200. Independent and freestanding imaging centers charge $1,300 to $3,800, while hospital outpatient departments charge $2,800 to $7,600 for the identical scan. The radiopharmaceutical tracer, often FDG, is sometimes billed as a separate line item adding $300 to $1,200. Academic and NCI-designated cancer centers using specialized tracers like amyloid agents tend to charge the most, $3,500 to $8,500.
What does Medicare pay for a PET scan in 2026?
In 2026, Medicare pays approximately $1,075 under the Physician Fee Schedule when a freestanding imaging center bills the global PET/CT code, and approximately $1,450 under the Hospital Outpatient PPS when the same scan is performed at a hospital. Original Medicare covers PET scans that meet National Coverage Determination 220.6, most oncology staging and restaging uses plus cardiac viability assessment. After the 2026 Part B deductible of $283, the beneficiary owes 20% coinsurance. Medicare Advantage must cover the same benefit, though prior authorization rules vary by plan.
How do I request a Good Faith Estimate for a PET scan?
Call the imaging center, hospital, or physician office and identify yourself as self-pay or uninsured, then ask for a written Good Faith Estimate itemizing the PET/CT code, the tracer charge, and the professional interpretation fee. If your scan is scheduled 10 or more business days out, the provider must give you the estimate at least 3 business days before service. If scheduled 3 to 9 business days out, you must receive it at least 1 business day before service. Keep the written estimate, if the final bill exceeds it by $400 or more, you can dispute it within 120 days at cms.gov/nosurprisesact.
What is the No Surprises Act and does it apply to my PET scan?
The No Surprises Act, effective January 2022, gives every self-pay and uninsured patient the right to a written Good Faith Estimate before a scheduled service, including a PET scan, and protects insured patients from certain out-of-network balance billing, for example when an out-of-network radiologist reads a scan performed at an in-network facility. It applies to hospitals, freestanding imaging centers, and physician offices, but does not replace Medicare's or Medicaid's own separate protections. The full guidance is at cms.gov/nosurprisesact.
How do I get a written cash-pay quote for a PET scan?
Call the imaging center directly, tell the scheduling staff you are paying cash, and ask for their bundled self-pay price, ideally one that includes the PET/CT imaging fee, the radiopharmaceutical tracer, and the professional interpretation. Ask specifically whether the quote includes all three charges, since PET bills commonly separate them. Independent imaging center networks frequently publish flat cash rates online. Request the quote in writing, which also satisfies your Good Faith Estimate right under the No Surprises Act.
Can I negotiate a PET scan bill after the fact?
Yes. Call the billing department, ask for the hospital's self-pay or financial-assistance discount off the chargemaster rate, typically 20 to 60 percent, and ask whether paying in a lump sum earns an additional discount. If the final bill exceeds a Good Faith Estimate you received by $400 or more, file a patient-provider dispute resolution claim within 120 days at cms.gov/nosurprisesact. Academic cancer centers often have separate charity-care programs with more generous income-based reductions than general hospital self-pay discounts.
What's the difference between hospital and independent imaging center PET scan cost?
The scanner and the imaging protocol are usually identical, but hospital outpatient departments bill a facility fee that covers overhead, staffing, and often 340B-priced radiopharmaceuticals, pushing the 2026 Hospital Outpatient PPS Medicare rate to about $1,450 versus about $1,075 at a freestanding imaging center. In cash-pay markets the spread is larger, hospitals often charge $2,800 to $7,600 while independent centers charge $1,300 to $3,800 for the same scan. Ask your ordering physician whether an independent center with the appropriate tracer contract can perform the scan.
Will my insurance cover a PET scan?
A PET scan is not a USPSTF preventive service, so it is not covered at 100% under ACA-compliant plans the way a screening colonoscopy or mammogram is. Standard cost-sharing applies, your deductible, then coinsurance or a copay, once the plan approves the medical necessity. Nearly every commercial and Medicare Advantage plan requires prior authorization before a PET scan, and a scan performed without it can be denied outright even if medically appropriate. Confirm prior authorization is on file before scheduling.
What's the difference between a PET scan and a CT scan?
A CT scan uses X-rays to create detailed images of anatomy, bones, organs, and structures. A PET scan uses a radioactive tracer to show metabolic activity, how tissue is functioning at the cellular level, which is why it is the preferred test for detecting cancer activity, treatment response, and recurrence. Most PET scans today are performed combined with a CT (PET/CT) so the scanner overlays metabolic activity onto detailed anatomy in one session. A standalone CT scan typically costs far less, see the [CT scan cost guide](/en/cost/ct-scan), and is used when metabolic information is not clinically necessary.
Does Medicare cover a PET scan for Alzheimer's or dementia?
Coverage depends on the tracer. Brain FDG-PET for dementia differential diagnosis remains covered by Medicare only within a CMS-approved clinical study protocol. Amyloid PET, which detects the amyloid plaques associated with Alzheimer's disease, had its coverage restrictions lifted in October 2023: CMS retired the National Coverage Determination and ended the coverage-with-evidence-development requirement, including the former once-per-lifetime cap. Local Medicare Administrative Contractors now decide amyloid PET coverage case by case based on medical necessity.
