Bulk billing covers the cost of your GP consultation — but not everything that happens inside a medical centre. Understanding what's included (and what's not) helps you avoid unexpected bills.
What bulk billing covers
When a GP bulk bills your visit, Medicare pays for the consultation itself. This includes the GP talking to you about your symptoms, examining you, making a diagnosis, writing prescriptions, providing referrals to specialists, and giving you a medical certificate. These are all part of the standard consultation covered by the Medicare Benefits Schedule (MBS).
The specific MBS item number determines the rebate. A standard consultation (Level B, item 23) attracts a different rebate than a longer consultation (Level C, item 36) or a brief consultation (Level A, item 3). The GP chooses the appropriate item based on the length and complexity of the visit.
What bulk billing usually covers
Some additional services are often bulk billed, depending on the practice. These include mental health treatment plans and GP mental health consultations, chronic disease management plans (GP Management Plans and Team Care Arrangements), health assessments (such as the 75+ health check or Aboriginal and Torres Strait Islander health assessment), and immunisations covered under the National Immunisation Program.
However, "usually" is doing heavy lifting here. Each practice decides independently what to bulk bill. A service that's free at one clinic may attract a gap fee at another.
What bulk billing does NOT cover
Several common services at a GP clinic are not covered by bulk billing, even if your consultation itself is free.
Pathology and blood tests are billed separately by the pathology provider. Many pathology companies do bulk bill, but some charge a gap for certain tests. Imaging such as X-rays and ultrasounds are billed by the radiology provider, not the GP — some bulk bill, some don't. Procedures like skin excisions, mole removals, IUD insertions, or wound suturing may attract an additional fee on top of the consultation. Travel vaccines and some other vaccines not on the National Immunisation Program are usually not bulk billed. Specialist referrals are covered by the GP consultation, but the specialist visit itself is billed separately by the specialist.
Non-Medicare services are never bulk billed. These include cosmetic procedures, some employment medicals, insurance medicals, taxi authority forms, Centrelink medical certificates (though standard ones are covered), and some workplace injury assessments (which may be covered by WorkCover instead).
Mixed billing — the grey area
Many practices operate on a "mixed billing" model. This means they bulk bill some patients or some appointment types, but charge a gap for others. Common mixed billing approaches include bulk billing children and concession card holders while charging a gap for working-age adults, bulk billing standard consultations but charging for long consultations, and bulk billing during certain hours but charging after hours.
Since November 2025, the expanded bulk billing incentives apply to all Medicare-eligible patients, which has encouraged more practices to bulk bill across the board. But mixed billing hasn't disappeared — always confirm the billing arrangement when you book.
How to avoid surprise bills
The simplest approach is to ask when you book. Say: "Will this appointment be bulk billed?" If you need a procedure, ask about that separately — "If the doctor needs to remove a mole, is that bulk billed too?" Get clarity before your appointment, not after. If your GP sends you for blood tests or imaging, ask them which providers in your area bulk bill. Most GPs know which local pathology labs and radiology clinics are bulk billing.