Dental Bookkeeping & Tax Blog | Reciprocity Accounting

PPO vs. FFS vs. Medicaid: Payer Mix and Collections

Written by Greg Hudnall | Jul 23, 2026 1:00:00 PM

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Your collection ratio target is 98% to 100% of net production no matter who pays you. What your payer mix changes is the size of your write-off gap and where your money gets stuck on the way in.

Two practices can both report a 99% collection ratio and run completely different businesses. One is a fee-for-service office writing off almost nothing. The other is a PPO office writing off a third of its full fee before a single claim goes out. Same number on the report, very different amount of money in the bank at the end of the month.

That gap is the most misread thing in dental finance. Owners hear a benchmark, check their number, see it land in range, and conclude the revenue cycle is healthy. Sometimes it is. Sometimes the ratio is fine and the practice is quietly starving, because the ratio was never measuring the thing they were worried about.

So here is how a CFO reads it. Your collection ratio is a measure of execution, not of economics. It answers one question: of the money you were actually entitled to collect, did you collect it? It says nothing about whether you were entitled to enough. Those are two different problems with two different fixes, and payer mix is what separates them.

Start With the Denominator, Not the Payer

Before payer mix matters at all, the denominator has to be right, because a wrong denominator produces a wrong ratio that no amount of payer analysis will explain.

Collection ratio is collections divided by net production. Net production is your full fee schedule minus every contractual adjustment you were never going to collect: the PPO discount, the Medicaid fee schedule, the uninsured cash courtesy. Those adjustments come out before you reach the denominator. This is why the difference between production and collections is the first thing to pin down, and why a contractual write-off is not the same thing as bad debt. One is a discount you agreed to in advance. The other is money you earned and failed to collect. Only the second belongs in a conversation about your collection ratio.

Measure against gross production instead and every PPO practice in America looks broken. A practice writing off 35% to a PPO fee schedule will show a 65% "collection ratio" against gross, panic, and go looking for a front-desk problem that does not exist. An alarming collection ratio is very often not a collections failure at all. It is a denominator error.

Get that right and the ratio becomes useful. A healthy general practice collects 98% to 100% of net production, and that target holds regardless of who is paying. If you want to see where your number sits alongside the rest of your financial picture, our free Dental Practice Benchmark Scorecard lets you check your collection rate, overhead, supply, lab, and staffing percentages against healthy dental ranges in about two minutes.

The Five Payer Mixes, and How Each One Fails

Payer mix does not change your target. It changes two other things: how big the gap is between your full fee and your net production, and where in the revenue cycle your collections break down. Every practice in the country sits somewhere in these five buckets, usually in a blend of two or three.

1. Fee-for-Service Heavy

The smallest write-off gap in dentistry. You set your fee, the patient owes your fee, and net production sits close to gross. The economics are the best of any mix, which is exactly why the failure mode is easy to miss.

With no insurer in the middle, essentially all of your collection risk is patient risk. Every dollar you fail to collect at the front desk becomes a patient balance, and patient balances age worse and collect worse than insurance claims do. An FFS practice with a soft time-of-service policy can post beautiful production and a mediocre collection ratio at the same time. The fix is almost never billing. It is the conversation that happens before the patient leaves.

2. PPO Heavy

This is the default American dental practice, and it is worth understanding why. According to the National Association of Dental Plans, DPPO products account for 89% of total enrollment in commercial dental plans, a share that held flat year over year (NADP 2025 Dental Benefits Report). If a patient walks in with commercial coverage, the overwhelming odds are that it is a PPO. Your insured book is a PPO book whether you planned it that way or not.

PPO practices carry a large gross-to-net gap and split their collection risk down the middle. Part of the bill goes to the insurer, part lands on the patient through deductibles and coinsurance. So you can fail in two places at once: a claim that gets denied or underpaid, and a patient portion that never gets collected.

This is also the mix where the 99%-and-still-broke feeling lives. Collecting 99% of net production is meaningful work. It is also entirely compatible with a fee schedule that has not been renegotiated in six years, which is a pricing problem your collection ratio is structurally incapable of showing you. The ratio is measuring your execution against the deal you signed. It has no opinion on whether the deal was any good.

3. Medicaid Heavy

The largest write-off gap of any mix, and the most commonly misjudged. The instinct is that Medicaid drags your collection ratio down. It does not, because the low fee schedule is removed before you ever reach net production. A Medicaid-heavy practice can and should hit 98% to 100%.

What Medicaid changes is where the risk sits. It typically carries little or no patient portion, so you are not chasing patients. You are chasing payers. The failure modes are denials, prior authorization, documentation, and timely-filing deadlines. That makes an aged Medicaid book an administrative problem, not a collections problem, and the two call for completely different responses. One needs a better claims process. The other needs a better front desk.

4. DHMO and Capitation

The outlier worth naming, because it genuinely breaks the arithmetic. Under a capitated plan you receive a fixed monthly payment per assigned patient regardless of what you produce. The payment is untethered from production, which means the numerator and denominator of your collection ratio are no longer describing the same activity.

If capitation is a small slice of your book, the distortion is minor and you can note it and move on. If it is a meaningful share, the blended ratio stops being a reliable signal and you need to track the capitated segment separately. This is the one case where splitting the number is the right call rather than an excuse.

5. Membership and In-House Plans

A growing category, and the accounting is where practices trip. A patient pays an annual membership fee up front in exchange for care delivered across the following twelve months. The cash arrives in one month. The production it pays for happens across many.

Booked carelessly, that inflates collections in the month the fee lands and understates them for the rest of the year, which will distort your ratio in both directions. It is a revenue recognition question more than a collections question, and it is one of the clearer arguments for reading your practice on an accrual basis rather than watching the bank balance.

What Actually Moves the Number

Here is the part that cuts across all five buckets. Once the denominator is right, the things that actually drive your collection ratio up or down have nothing to do with who your payers are.

  • Time-of-service collection rate. The single highest-leverage habit in the practice. Money collected at the front desk never enters your AR, never ages, and never needs chasing.
  • Claim submission lag. Days between treatment and a clean claim going out. Every day here is a day added to the front of your aging report.
  • Denial rework discipline. Whether someone owns denials as a daily task or whether they accumulate until someone notices.
  • Timely-filing awareness. A claim past its filing deadline is not aged, it is gone. This converts directly into write-offs.
  • Case mix. Ortho, implants, and large restorative cases carry payment arrangements that stretch AR by design. That is a structural feature of the work, not a performance problem.
  • Fee schedule maintenance. Does not move the ratio at all, and belongs on this list precisely for that reason. It is the biggest lever on your economics and it is invisible to this metric.

Notice that five of those six are process, and none of them are geography. That is the whole point. Two practices with the same payer mix and different front-desk discipline will post different collection ratios. Two practices with different payer mixes and the same discipline will post similar ones.

Three Payer Mixes in the Wild: Ohio, Florida, and Utah

State lines do not set your target, but they do shape the payer mix you are likely to be working with, which makes three real markets a useful way to see the framework operate.

Ohio runs a comprehensive adult Medicaid dental benefit with comparatively strong dentist participation, so many Ohio practices carry a real Medicaid share. The old assumption that this guarantees a punishing write-off gap has weakened. The Ohio Dental Association reports that Medicaid dental reimbursement rose by an average of 93% across covered services and now sits at roughly 82.4% of private insurance rates, ranking Ohio fifth in the country for adult dental reimbursement (Ohio Dental Association). Smaller gap than you would expect, and because Medicaid carries little patient balance, that share of AR is almost entirely insurance you can work. The playbook is bucket 3: claim discipline and denial follow-up, which is the same ground covered in Ohio dental insurance reimbursement.

Florida delivers its adult Medicaid dental benefit through Statewide Medicaid Managed Care, with base services available without prior authorization and expanded services requiring it (Florida Statewide Medicaid Managed Care). Combine that prior-authorization layer with a market that skews private and PPO, and Florida practices tend to run buckets 2 and 3 simultaneously: managed-care friction on one side, patient balances on the other. Both reward front-loading, which is the theme of Florida dental insurance collections.

Utah is the one actively moving. Historically a strong private market with a very limited adult Medicaid dental benefit, Utah expanded dental coverage to all adults 21 and older on April 1, 2025 under an approved 1115 waiver (Utah Medicaid). Practices taking newly eligible adults are adding a bucket-3 segment alongside a bucket-2 book they already know how to run. The target has not moved. The composition underneath it has, and the practices that hold 98% to 100% through the shift are the ones that stand up Medicaid billing deliberately instead of routing new claims through a PPO workflow.

Three different states, three different mixes, one target. Change the state and the mix changes. Change the mix and the work changes. The number on the report stays exactly where it was.

How to Read Your Own Mix

Start by confirming you are measuring against net production. That one check resolves most alarming collection ratios on the spot.

Then split your aging report by payer rather than looking at one blended total. Reading your aging report by payer tells you in about five minutes which bucket your problem lives in. Insurance AR piling up past 60 days points at claims, denials, and filing discipline. Patient AR piling up points at your time-of-service policy. Both at once usually means nobody owns the follow-up.

Watch the trend rather than the monthly reading. A single month is noisy, because insurance timing routinely distorts a single month of dental financials. Three months of direction tells you far more than any one month's number, and it is the view that separates a timing artifact from a real decline. If you want the full mechanics underneath all of this, how dental practice collections actually work walks the cycle end to end.

And keep it as one blended number. The temptation with a mixed book is to set a softer target for the harder payer. Resist it. A separate Medicaid benchmark quietly becomes permission to collect less, and the single blended figure measured against net production is the only version of this metric that stays honest. The one exception is meaningful capitation, for the arithmetic reason above.

P.S. Reciprocity Accounting tracks your collection ratio against net production in a monthly dashboard, whatever your payer mix, on books that close by the 10th. See how we can help your practice.

Frequently Asked Questions

Does my collection ratio target change if I am mostly PPO?

No. A healthy general practice collects 98% to 100% of net production whether the book is PPO, fee-for-service, Medicaid, or mixed. The target holds because the PPO discount is removed before you reach net production. What a PPO-heavy mix changes is the size of your write-off gap and the fact that your collection risk is split between insurer denials and patient deductibles.

Is a Medicaid-heavy practice doomed to a lower collection ratio?

Not at all. Medicaid's low fee schedule is a contractual adjustment that comes out before net production, so it does not drag the ratio down. Because Medicaid usually carries little patient balance, that portion of your AR can actually be cleaner than a private book full of deductibles. The Medicaid risk is denials, prior authorization, and timely filing, which is an administrative problem rather than a collections problem.

Why does my practice collect 99% and still feel tight on cash?

Because collection ratio measures execution, not economics. It tells you whether you collected what you were entitled to. It cannot tell you whether you were entitled to enough. A practice with a stale PPO fee schedule can collect 99% of net production every month and still have thin margins, because the problem is the contracted rate, not the collecting. That one shows up in your overhead percentages, not here.

Should I track a separate collection ratio for each payer?

Generally no. Keep one blended number measured on total net production, and use your aging report split by payer to see where the effort needs to go. Per-payer ratios invite a softer target for the harder payer, which lowers the standard without anyone deciding to. The exception is a meaningful capitation or DHMO share, where fixed monthly payments are untethered from production and genuinely distort the blended figure.