How Much Are PPO Write-Offs Costing Your Dental Practice?

Every time a PPO patient sits in your chair, you lose money before the procedure even begins. Not because dentistry isn't profitable — but because the fee you agreed to accept is 25-50% less than the fee you'd charge a cash patient. Multiply that discount across 3,000+ procedures per year and the total is staggering.

What PPO Write-Offs Actually Are

A write-off (or "adjustment") is the difference between your UCR fee (Usual, Customary, and Reasonable — what you'd charge without insurance) and the contracted fee a PPO plan pays you.

Example: Your UCR for a crown (D2740) is $1,200. Delta Dental's contracted rate is $850. The $350 difference is a write-off. You performed $1,200 worth of work and collected $850. That $350 is gone — you can't bill the patient for it.

The Real Math: $200K-$600K Per Year

The average general dental practice produces $800K-$1.2M annually at UCR fees. With a typical PPO adjustment rate of 30-45%, that means $240K-$540K in annual write-offs. For a two-doctor practice producing $2M, write-offs can exceed $700K.

Think about that: you could hire two additional hygienists, renovate your office, or simply take home an extra $300K — if those write-offs didn't exist.

Most Discounted Procedures

Notice: high-frequency, low-fee procedures (exams, prophy, x-rays) have some of the highest write-off percentages. You perform these on nearly every patient visit — the volume amplifies even small discounts into massive annual losses.

How to Calculate Your Write-Off Rate

Step-by-step:

1. Pull your top 10 procedure codes by volume from your practice management software
2. For each code, note your UCR fee and each PPO's contracted fee
3. Multiply (UCR - PPO fee) × annual volume = write-off per procedure
4. Sum all procedures = total annual write-off
5. Divide total write-off by total UCR production = your write-off rate

Most practices have never done this exercise. When they do, the number is always larger than expected.

The Decision: When to Drop a PPO Plan

Not all PPOs are equal. Some pay 80% of UCR. Others pay 55%. The decision to drop should be based on data, not emotion.

Drop if:

• The plan pays less than 70% of your UCR on high-volume codes
• The plan represents less than 15% of your total patient base
• You have a waitlist or are turning away patients
• Your hygiene schedule is booked 3+ weeks out
• You're in a market with limited PPO competition

Keep if:

• The plan represents 30%+ of your patients (too risky to drop at once)
• You have empty chair time and need the volume
• The plan pays reasonably (75%+ of UCR)
• You're in a highly competitive market with many in-network options

The "Drop and Replace" Strategy

The biggest fear: "I'll lose all my patients." Reality: practices that drop a PPO typically retain 60-80% of those patients. Why? Patients chose you for your care, not your network status.

The strategy:

1. 6 months before: Start building an in-house membership plan ($25-35/month for 2 cleanings, exams, x-rays, and 15-20% off treatment)
2. 3 months before: Notify the PPO of your intent to leave
3. At drop date: Contact every affected patient personally. Offer your membership plan as an alternative
4. After drop: Raise UCR fees to market rate. The 60-80% of patients who stay are now paying full fee or membership rates

A practice that drops a plan with 200 patients, retains 140, and converts them from paying 65% of UCR to 100% of UCR has increased revenue on those patients by 54% — while seeing fewer of them.

Fee Schedule Negotiation: What Works

Before dropping, try negotiating. Most dentists don't know you can request a fee increase.

• Leverage data: Show the PPO your patient volume and retention rate on their plan
• Request specific increases: Don't ask for a blanket raise. Target your top 10 codes with specific dollar amounts
• Use a negotiation service: Companies like Veritas Dental Resources negotiate on your behalf for a percentage of the increase (typically worth it)
• Timing matters: Negotiate during open enrollment periods when PPOs are trying to maintain network adequacy

Success rate: about 40-60% of negotiation attempts result in some fee increase. Average improvement: 8-15% on targeted codes. Not transformative, but meaningful.

Calculate Your Write-Offs

Stop estimating. Use our free Dental PPO Write-Off Calculator to enter your actual procedure codes, UCR fees, PPO contracted rates, and annual volumes. You'll see your exact annual write-off by procedure — and what happens to your revenue if you drop your worst-paying plan.