Choosing an OHIP Billing Partner in Ontario: Why Cheaper Percentage Isn't Higher Net Income

Most physicians approach the billing partner decision the same way they approach any vendor comparison: find out the price, pick the lowest one. When one service charges 1% and another charges 4%, the math feels obvious. Except it isn't, and this framing is costing a lot of Ontario physicians real money every month.

This post walks through the actual net-income math, the specific places OHIP complexity generates invisible losses, and the questions you should be asking before you sign with anyone — including us.

The Percentage Trap: What Most Physicians Actually Compare

When you see a 1% versus 4% commission spread, the instinct is to treat that as the cost difference. But that calculation only holds if both partners collect at the same rate on the same revenue base. They almost never do.

Here is the math that actually matters. A physician billing $50,000 a month working with a low-cost passive submission service might be collecting $42,500 after typical leakage. Their billing fee: $425. A higher-engagement partner charging 4% on optimized collections of, say, $57,500 costs $2,300. The physician keeps $55,200 versus $42,075 — a difference of over $13,000 a month — while paying a higher percentage fee.

The question is never "what percentage do they charge?" The question is "what do I keep after their fee and after what they leave on the table?"

We had a physician come through our free review recently who had been very accustomed to paying minimum wage for OHIP billing. Rejections and service code errors were routine, and he was losing roughly $7,000 a month on those issues alone. When we presented our rate, he pushed back, feeling that anything above 1% was expensive. When we showed him that our service would likely cost him $2,250 a month but would put him up approximately $17,250 net of our fees, the conversation changed entirely. Physicians naturally frame billing as an expense to minimize. The better frame is: if the service provider isn't paid well enough to chase the details, they simply won't, and the physician loses disproportionately.

For a fuller picture of how Ontario physicians structure their billing approach, the differences between passive submission and active optimization run much deeper than commission percentages.

Revenue Leakage Is an Overhead Cost You Don't See

Revenue leakage is the income that leaves your practice without generating a visible rejection. There is no error message, no remittance flag, nothing in your EMR dashboard to signal that money did not arrive. It happens through under-coded visits, missed service codes, incorrect specialty designations, and time-unit calculation errors — and it is far more common than most physicians realize.

The OMA's Education and Prevention Committee billing briefs specifically identify time-based services as a high-failure-mode area, where minimum-time thresholds, documentation requirements, and delegation rules must all be met precisely for full payment to be issued.¹ Similarly, physicians with more than one specialty designation face eligibility rules that require correct specialty code selection at the claim level — billing under the wrong designation renders that claim ineligible, and that failure generates no rejection notice the physician would ever see.²

This is the mechanism insurers rely on. What you don't know you're missing, you can't ask for. And if the physician billing the claims doesn't have the inclination or training to bill every nuance, they are also typically not charting every nuance with enough detail for a billing expert to review and code properly after the fact. The unknown unknowns compound each other.

This is precisely why we build a careful, conversation-based review into every new engagement and why benchmarking against peer physicians in the same specialty is one of the most powerful tools available. When we can show a physician what colleagues in their specialty and volume range are collecting per visit, the gaps become visible and quantifiable. Data makes the unknown known. Data drives transparency, transparency drives accountability, and accountability drives action.

You can see the same principle at work in why Ontario-based clinics should always sign and bill for patient medical forms — small, overlooked billing categories that add up to meaningful revenue over a year.

Net Income Math: Collected Revenue Minus Time, Risk, and Uncaptured Codes

There is a third variable most physicians forget to include in the billing cost calculation: their own time.

The OMA's methodology for valuing physician time in the context of uninsured services makes the point clearly — physician time has a direct, quantifiable dollar cost, overhead included.³ The same logic applies to billing administration.

A physician billing $50,000 a month and spending 30 minutes a day on their own coding, error correction, and remittance review is spending approximately $175 per hour across 19 working days — about $3,325 a month in their own billable time on a task that can be delegated. A billing partner charging 5% on that same revenue base would cost $2,500 a month. The physician saves nearly $1,000 relative to their own time cost, gains a business deduction (billing fees are a pre-tax expense), and recovers 30 minutes a day to generate clinical income instead.

Taken further: if that 30 minutes a day translates to additional clinical revenue of $3,325 a month, the physician's gross grows to $53,325. After billing fees of $2,500, they net $50,825 — more than if they had done the billing themselves for free.

This is the math that gets lost when billing is treated purely as an overhead line to be minimized. The true cost of DIY OHIP billing goes well beyond the commission rate you're avoiding.

How OHIP Complexity Makes "Simple" Billing the Most Expensive Option

Ontario's OHIP fee schedule is not simple. It never has been. The billing briefs published by the OMA's Education and Prevention Committee exist precisely because the volume of rules, exceptions, time-unit thresholds, specialty eligibility requirements, and documentation standards generates a steady stream of physician underpayment when submission is treated as a clerical task rather than a revenue management function.

This complexity creates what we think of as learned helplessness. When physicians audit their billing and find it opaque — when rejections seem arbitrary, when remittance data doesn't connect to any single service line they can identify — many simply stop looking. The system feels too confusing to be worth the effort of understanding. The leakage continues, invisible, and the physician habituates to a lower income floor than they should have.

The sequencing mistake physicians make when switching partners from this state is trying to compare new partners without first understanding what their current arrangement is actually producing. You cannot evaluate whether a new partner will improve net income if you don't have a baseline. You need to know your current collection rate by service category, your rejection and non-resubmission rate, and whether your specialty codes are being applied correctly before any comparison means anything. Data is the only tool for that, and a free review built around benchmarking against peers is the fastest path to establishing it.

We also think it is worth reading what medical school didn't teach you about OHIP and Medicare billing — because most of the complexity that creates leakage was never part of training, and that gap is not a personal failing. It is a structural one.

What to Audit in Your Current Billing Before You Switch Partners

Before you can fairly evaluate a new billing partner, you need honest answers to a few questions about your current arrangement.

Rejection and resubmission rate. What percentage of your claims are rejected, and what percentage of those rejections are successfully resubmitted? If your current partner submits and moves on, the rejections are a permanent write-off, not a temporary delay.

Service code completeness. Are time-based codes being billed with the correct documentation of duration? Are specialty-eligible codes being applied under the correct designation? Are all eligible service lines actually being submitted, or only the straightforward ones?

Peer benchmarking. What is your average revenue per patient visit compared to physicians in your specialty and volume range? This is the fastest way to identify whether passive submission is leaving money behind, because the gap shows up in the per-visit average before it shows up anywhere else.

Your own admin time. How many hours per week do you or your staff spend correcting, chasing, or auditing billing? Multiply that by your hourly rate. Add it to your commission cost. That is your real billing expense.

If a prospective billing partner cannot or will not show you their trailing 12-month cycle data — rejection rates, resubmission turnaround, collection rate by service category — that is a significant red flag. A credible partner keeps their own house in order and can demonstrate it with numbers. Vague references to their process or their software, without data behind them, suggest they are optimizing for submission volume rather than collection outcomes.

How a billing operation manages its own data is a very good proxy for how carefully they will manage yours. The Claims Concierge service is built around exactly this kind of ongoing, data-visible oversight rather than one-time submission.

Frequently Asked Questions

Is a lower commission rate always better for OHIP billing?

No. A lower commission rate only produces a lower cost if the partner collects at the same rate as a higher-priced one. Passive submission services routinely leave 10–40% of billable revenue uncollected through under-coding, missed codes, and uncontested rejections. A 1% fee on incomplete collections can cost far more in lost income than a 4% fee on optimized collections.

How do I calculate the true cost of my current billing arrangement?

Add three numbers: your current commission cost, the estimated value of uncollected revenue (rejections never resubmitted, under-coded visits, missed specialty codes), and the dollar value of your own admin time spent correcting errors. That total is your actual billing cost, not the percentage on your invoice.

What is revenue leakage, and how common is it in Ontario fee-for-service practice?

Revenue leakage is income that exits your practice without generating a visible rejection or alert. It happens through under-coding, incorrect specialty designation, missed time-unit thresholds, and unsubmitted eligible visits. It is very common in Ontario fee-for-service practice, particularly where billing is handled by undertrained or underpaid administrative staff without active oversight.

Do time-based rules and specialty codes really change my take-home income?

Yes, significantly. Ontario's time-based service rules require precise documentation of duration, minimum time thresholds, and delegation compliance.¹ Billing under the wrong specialty designation makes a claim ineligible without producing a rejection you would notice.² These are not edge cases. They are among the most common sources of quiet, ongoing underpayment.

What should I ask a potential billing partner about their recovery process?

Ask to see their trailing 12-month cycle data: rejection rates, resubmission turnaround, and collection rates broken down by service category. A credible answer comes with numbers and a clear explanation of how they identify and recover missed revenue. A deflective answer — one that pivots to software features, years in business, or vague process descriptions without data — tells you that transparency is not their operating model, and that is exactly what you should be evaluating.

If you want a concrete baseline before you make any decision about your billing arrangement, the clearest starting point is a no-commitment review of your current numbers. Schedule your free OHIP billing review and we will show you what the data actually says about where your revenue stands relative to peers in your specialty — no sales pitch, just numbers.

References

Ontario Ministry of Health and Ontario Medical Association. "Education and Prevention Committee Billing Briefs: Time-Based Services — Case-Based Billing Examples." ontario.ca. Updated June 2026. https://www.ontario.ca/document/education-and-prevention-committee-billing-briefs/time-based-services-case-based-billing
Ontario Ministry of Health and Ontario Medical Association. "Education and Prevention Committee Billing Briefs: Billing for Visits by Physicians with More Than One Specialty Designation." ontario.ca. Published March 2026. https://www.ontario.ca/document/education-and-prevention-committee-billing-briefs/billing-visits-physicians-speciality-designation
Ontario Medical Association. "Physician's Guide to Uninsured Services." January 2026 Edition. https://www.oma.org/siteassets/oma/media/pagetree/pps/billing/uninsured-services/physicians-guide-to-uninsured-services.pdf