By Dr. Mark Bekhit, Radiologist · Last updated July 2026
Short answer: bulk-billed radiology means the imaging provider bills Medicare and accepts the Medicare benefit as full payment for that service, so you have no out-of-pocket cost for it. You must be enrolled in Medicare and the provider must choose to bulk bill. For imaging, the service must also meet any relevant MBS conditions for the request. Before booking, ask whether your exact scan is rebatable, whether it will be bulk billed, and what you will pay if it is not.
On this page
What does bulk-billed radiology mean?
Bulk billing is a payment arrangement for an eligible Medicare service. The imaging provider sends the claim to Medicare and accepts the Medicare benefit as full payment. Services Australia says the patient does not pay for a service that is bulk billed.
You may be asked to assign the Medicare benefit to the provider. Services Australia says this can happen with a digital or paper signature, or by confirming the assignment on an EFTPOS terminal. That confirmation is not an extra fee; it lets Medicare pay the benefit directly to the provider.
The important phrase is for that service. If one appointment includes more than one examination or procedure, Services Australia warns that not everything at the visit must be bulk billed. For example, a clinic could bulk bill one eligible examination and privately bill another service. Each service may therefore have a different billing decision.
The practical rule: “bulk billed” describes how one eligible service is billed. It is not a permanent label for every patient, every scan or every service at that clinic.
A clinic may use “no out-of-pocket cost” to describe the same outcome. Healthdirect states that if a diagnostic imaging provider bulk bills your test, you have no cost for that test. If the service is privately billed instead, the provider charges its own fee and any Medicare benefit is handled separately.
Does a referral guarantee that your scan will be bulk billed?
No. A diagnostic imaging request and a clinic’s billing decision answer different questions. The request identifies the service and should include sufficient clinical information. Medicare eligibility depends on whether the service matches a current Medicare Benefits Schedule (MBS) item and its conditions. Bulk billing then depends on whether the provider chooses to accept the Medicare benefit as full payment.
The Australian Government says Medicare subsidises listed X-ray, ultrasound, CT, MRI and nuclear medicine services, but item restrictions can involve age, frequency, requester requirements and other conditions. Only accredited practices can provide Medicare-eligible diagnostic imaging services. For an R-type service, the request rule is one eligibility condition; it is not a price promise.
The MBS request guidance adds two boundaries. For an R-type service, Medicare benefits are generally not payable unless the practitioner receives a request before the service, subject to specified exemptions. The request must identify the service and should include enough clinical information to help the provider perform it accurately.
If the clinical information is insufficient, the requester may be asked for more information and the scan may be delayed. Separately, a request should meet any specific requirements of the relevant MBS item; failure to provide that item-specific information may mean a benefit is not paid. The diagnostic imaging request guide explains the common requester pathways without turning them into a billing guarantee.
A request is not a quote: it can support Medicare eligibility, but it does not set the clinic’s fee or require the clinic to bulk bill.
That distinction explains why two providers can quote different amounts for the same requested scan. Diagnostic imaging providers set their own fees, and the provider makes the bulk-billing choice for the service. The government sets Medicare fees and benefits; it does not set each clinic’s retail fee.
What changes the amount you pay?
Start by separating the billing pathway from the scan name. An X-ray, ultrasound, CT or MRI can sit in different payment pathways because the MBS item can have age, frequency, requester or other conditions, while R-type services generally require a request before the scan. The provider’s fee and whether care occurs outside hospital or during an admission then affect the payment pathway.
For current ultrasound item examples and real patient-payment data, see our ultrasound cost guide.
For an out-of-hospital MBS service that is not bulk billed, the Department of Health explains that the out-of-pocket cost is the difference between the provider’s fee and the Medicare benefit. Patients commonly pay the clinic first and then receive the applicable Medicare benefit. The fee, the benefit and the amount left to pay are three separate figures.
If you want an independent reference point, the Department of Health’s Medical Costs Finder includes some diagnostic imaging services and MBS items. It is useful for understanding fee language, but your booking quote remains the figure that matters for your appointment.
How can you compare a clinic and book?
Start with a shortlist of providers for the required examination. The Imaging Finder directory and Australia location index list clinics and recorded services for navigation; they do not state a clinic’s billing policy. Use the listing to narrow the area and service, then use the request when you contact a provider.
You are not locked to the provider named on the request. Services Australia says you may choose another provider as long as it offers the scan you need. This lets you compare providers without asking the requester to rewrite the form solely because another company is printed on it.
With the request in front of you, check that the provider performs the exact examination. The Department of Health notes that MBS restrictions can include age, frequency and requester conditions.
Then use one three-part cost check. Services Australia advises asking about the cost before the scan, and the provider chooses whether to bulk bill. If it does not, the Department of Health explains that the outpatient gap is the provider’s fee minus any applicable Medicare benefit.
If the request contains several examinations, use the three questions for each one. Services Australia specifically notes that a visit with more than one service may include different billing decisions. A single appointment time does not turn several services into one billing decision.
Once the appointment is confirmed, follow the provider’s instructions for the scan. The ultrasound preparation guide explains common fasting and bladder-preparation pathways, while the imaging provider’s instructions apply to the examination it has booked.
Can private health insurance pay a radiology gap?
No—not for an out-of-hospital Medicare service. The Department of Health states that private health insurers cannot cover out-of-hospital Medicare services, including diagnostic imaging. If a private radiology clinic patient-bills an eligible outpatient scan, the calculation is the clinic fee minus the Medicare benefit; private hospital cover does not fill that outpatient difference.
The hospital boundary is different. The Department of Health states that a private patient in a public or private hospital may have out-of-pocket costs. That admitted-care rule is separate from the prohibition on private insurers covering out-of-hospital Medicare services.
A person with a Medicare card pays no out-of-pocket costs for treatment as a public patient in a public hospital. That source establishes the charging rule; it does not promise that a private imaging request will be accepted into a public outpatient service. The public-versus-private imaging guide keeps the two funding pathways separate.
Once your scan is complete, the radiology report guide explains how to find the conclusion, recommendations and addenda before your follow-up appointment.
Common questions about bulk-billed radiology
Does a referral mean my scan will be bulk billed?
No. The request supports the clinical and Medicare pathway, but it does not set the provider’s fee. The service must match the relevant MBS requirements, and the provider separately decides whether to accept the Medicare benefit as full payment.
Can one scan be bulk billed and another scan charged at the same visit?
Yes. Services Australia says that when a visit contains more than one service, not everything must be bulk billed. One appointment can therefore combine different billing decisions. Read the quote service by service rather than assuming that one “bulk billed” answer applies to the entire visit.
Can I take my request to a different radiology provider?
Yes. You may choose another provider that offers the required scan, even when the form names a particular imaging company. The request does not need rewriting solely because another provider is printed on it. The same MBS item and request conditions still apply.
Why might an MRI not be bulk billed?
MRI eligibility and clinic billing are separate. The request must match an MBS item and Medicare eligibility can depend on the scanning location. Even when those checks pass, the provider still sets its fee and decides whether to bulk bill. The MRI and Medicare guide explains eligibility, while the MRI cost guide explains the billing pathways.
Is radiology free at a public hospital?
A person with a Medicare card pays no out-of-pocket costs for treatment as a public patient in a public hospital. A private patient in a public or private hospital may have out-of-pocket costs. The government cost guidance does not promise access to a public outpatient imaging appointment.
Where do these sources, rules and limits come from?
The billing definitions and booking questions were checked against Services Australia, the Australian Government Department of Health, current MBS diagnostic-imaging guidance and healthdirect on 30 July 2026. These sources establish national Medicare and billing rules, but they do not establish a clinic’s current policy for a particular scan. Imaging Finder therefore lists clinics and recorded services without labelling a clinic or modality as routinely bulk billed.
- Services Australia — bulk billing
- Services Australia — screening, tests and scans
- Department of Health — diagnostic imaging and Medicare
- Department of Health — out-of-pocket costs
- healthdirect — radiographers and radiologists
This article is general information, not personal medical advice. It does not replace a written quote for your exact requested service.
Author: Dr. Mark Bekhit
Dr Mark Bekhit (MBChB, FRANZCR) is a musculoskeletal radiologist practising in Brisbane and an AHPRA-registered specialist in diagnostic radiology (MED0002920947). He spends as much time building software as reading scans: he founded Imaging Finder (Australia) and Radiology Clinics NZ to make imaging easier to find, and builds radiology dictation and pain-tracking tools with one aim — better patient outcomes and a smoother reporting workflow. Outside the reading room he's usually training, bringing the same performance mindset to imaging.
Leave a Reply