What does it cost to run a specialist practice in Ontario?

There is no single figure, because the cost depends on whether space and staff are yours or the hospital's, how much administrative work is outsourced, and how much of your billing is done by someone whose fee scales with revenue. A hospital-based specialist with no clinic lease and a shared assistant has a fundamentally different cost base from a community practice carrying rent, several staff and equipment. Quoting one percentage across both is how the number gets misunderstood.

What are the actual line items in specialist practice overhead?

Occupancy, including rent, utilities and maintenance where the space is yours. Staffing, including salary, benefits, payroll burden and coverage for absence. Clinical supplies and equipment, including service contracts and replacement cycles. Technology, including the EMR, scheduling, dictation and any analytics. Professional costs, including CPSO and CMPA fees, association dues and insurance. Administrative services, including billing, bookkeeping and accounting. Payment processing on any revenue collected by card.

Why can most physicians not state their own overhead ratio?

Because the denominator is unclear. Overhead as a share of gross billings, of collected revenue, or of revenue net of a billing fee are three different numbers, and practices rarely fix which one they mean. The costs also arrive from different places, so no single statement shows them together, and the one number that would settle it is assembled once a year for tax purposes rather than tracked monthly.

Is a lower overhead ratio always better?

No, and treating it as a target can destroy income. Cutting administrative spend lowers the ratio and can reduce collected revenue by more than it saves, because rejection follow-up, premium capture and modifier accuracy are administrative work. The ratio is a description rather than a goal. Net income is the thing being optimised.

How do I work out my own number?

Pick one denominator and hold it. Collected revenue is the most useful, because it is what actually arrived. Then total twelve months of every cost listed above, including the ones that do not arrive as invoices, such as a billing fee deducted before remittance. Divide, and record the date and the definition so the next calculation is comparable.

What It Actually Costs to Run a Specialist Practice in Ontario

Ask a specialist what their practice costs to run and you will usually get one of three answers. A number they heard from a colleague. A number their accountant mentioned once. Or an honest admission that they have never worked it out.

That is rarely carelessness. The costs arrive in a way that makes the total hard to see.

Why the number is hard to state

The costs of running a practice do not appear on one statement. Rent comes from a landlord, payroll from a bookkeeper, the EMR from a software vendor, the CMPA and CPSO from annual notices, and a billing fee is often deducted before the remittance even reaches you. Nobody assembles them into a single figure except once a year, for tax, in a format designed for the Canada Revenue Agency rather than for a decision.

The denominator is worse. Overhead as a share of what you billed, of what was collected, or of what was collected after a billing fee are three different numbers that get used interchangeably. A practice quoting 30% and a practice quoting 22% may be describing the same business with different arithmetic.

What it is actually made of

For an Ontario specialist practice, the real line items are these.

Occupancy. Rent, utilities, maintenance, and any leasehold amortisation where the space is yours. A hospital-based specialist may carry none of this, which is the single biggest reason overhead ratios are not comparable between colleagues.

Staffing. Salary is the visible part. Benefits, payroll burden, and the cost of covering absence are the parts that get left out of mental arithmetic.

Clinical supplies and equipment. Consumables, service contracts, and replacement cycles on anything that wears out. The replacement cycle is the line most often ignored, because it does not arrive monthly.

Technology. The EMR and its per-user fees, scheduling, dictation or transcription, and anything you pay for reporting.

Professional costs. CPSO, CMPA, association dues, and insurance.

Administrative services. Billing, bookkeeping, accounting, and legal where it applies.

Payment processing. On any revenue collected by card, including the uninsured services most specialist practices bill directly.

The two mistakes that follow

The first is comparing your ratio to a colleague's. A hospital-based internist with no lease and a shared assistant and a community practice with four staff and an equipment schedule are not running the same business. Their ratios should differ, and the difference says nothing about how well either is managed.

The second is treating a lower ratio as the goal. Administrative spend is the easiest line to cut and the most expensive one to get wrong, because rejection follow-up, premium capture, modifier accuracy and version-code checking are all administrative work. A practice that reduces administration and loses more in unrecovered claims than it saved has improved its overhead ratio and reduced its income. The ratio describes the business. Net income is the thing worth optimising.

How to work out your own

Three steps, and the discipline is in the first one.

Pick one denominator and keep it. Collected revenue is the most useful, because it is what actually arrived in the account rather than what was submitted. If a billing fee is deducted before remittance, decide now whether your denominator is before or after it, and write the decision down.

Total twelve months of every line above. Include the costs that do not arrive as invoices. A percentage deducted at source is still a cost, and leaving it out is the most common way a practice understates its overhead.

Record the date and the definition alongside the result. A ratio without its definition is not comparable to anything, including your own number next year.

What this has to do with billing

The connection is the denominator. Every one of these costs is measured against revenue, so a practice that is collecting less than it has earned is overstating its overhead and understating its performance at the same time. Rejections that were never followed up, premiums never claimed, and modifiers never applied all shrink the number you are dividing by.

That is why the first useful thing to look at is usually not the cost side. It is whether the revenue side is complete.

The honest position

Most specialists running a reasonable practice are somewhere in a broad range, and the range is broad enough that quoting it would be unhelpful. What matters more is that the number is yours, calculated the same way each year, and that you know which direction it is moving and why.

If you want a read on whether the revenue half of that calculation is complete, that is what a billing review looks at. We work from your remittance data, tell you what is being rejected and what is being left unclaimed, and give you an honest answer on whether there is anything worth recovering. If your billing is in good shape we will tell you that.

Start with a free OHIP billing review.

This article describes how practice operating costs are structured. It is not accounting, tax or financial advice, and the right treatment of any specific cost depends on your circumstances and your corporate structure. Speak to your accountant about your own position.