Physicians become owners of practices to practice medicine, not to manage billing operations. The result is a pattern that repeats across thousands of independent practices: billing runs in the background, collections look approximately right, and the 15–20% of revenue that’s being silently lost to systematic errors never surfaces — because nobody with the right knowledge is looking for it.
Three billing gaps account for the majority of that lost revenue. They’re not complex. They’re just not being caught.
Gap 1: Chronic Care Management Revenue Nobody Is Billing
CPT 99490 (Chronic Care Management) covers monthly billing for patients with two or more chronic conditions who receive at least 20 minutes of non-face-to-face care coordination per month. Medicare reimburses approximately $42–62 per patient per month.
Most primary care and internal medicine practices have 60–120+ Medicare patients who qualify. Most aren’t billing CCM at all — either because they don’t know it exists, because their biller doesn’t flag it, or because the documentation workflow hasn’t been set up.
A practice with 80 CCM-eligible Medicare patients at $50/month = $4,000/month, $48,000/year. That’s revenue for work the physician is already doing — care coordination, medication management, chronic disease follow-up — that’s simply not being billed.
Gap 2: E/M Leveling Too Conservative
Under the 2021 AMA/CMS E/M revisions, office visit leveling is now based on Medical Decision Making or Total Time. Many practices are still systematically under-leveling visits — billing 99213 for encounters that qualify as 99214 or 99215 because the billing staff defaults to conservative coding to avoid audit risk.
The appropriate level for a visit is determined by what’s documented, not by risk aversion. A 99215 visit with appropriate MDM documentation — multiple chronic conditions, prescription drug management, or data review involving independent interpretation — is not a higher audit risk than a properly documented 99213. It’s just a higher-revenue claim.
A practice billing 200 office visits/month that defaults to 99213 ($115 average) when 40% should be 99214 ($167) or 99215 ($232): that’s $52–$117 per under-leveled visit, multiplied by 80 visits/month = $4,160–$9,360/month in systematically under-captured revenue.
Gap 3: Modifier 25 Errors on Same-Day Preventive Visits
When a patient presents for a preventive care visit and the physician addresses a significant, separately identifiable E/M service during the same encounter — a new problem, a chronic condition requiring additional work — both the preventive code and the E/M code can be billed with Modifier 25 on the E/M.
Most practices either don’t know to capture this, or their biller flags it as bundled and removes the E/M. The result: legitimate revenue for documented clinical work that disappears from the claim.
At $100–$175 per missed same-day E/M, across a primary care practice seeing 25 preventive visits/week where 30% have a qualifying separate problem: that’s $750–$1,313/week, $39,000–$68,000/year.
What a Revenue Audit Shows
When a Dr. Billerz biller reviews a new physician practice’s last 90 days of billing before starting, these three gaps are the ones that appear most consistently in primary care and internal medicine. The average recovery in the first 6 months — from CCM implementation, E/M level corrections, and Modifier 25 capture — is $40,000–$120,000 in annualized revenue improvement, depending on practice size and specialty mix.
That improvement comes from billing correctly for work already being done. Not from seeing more patients. Not from adding services. From capturing the revenue the physician has already earned.
What Physician-Owned Practices Need From a Biller
A general biller submits claims. What physician-owned practices need is a specialty-trained biller who proactively identifies revenue gaps — who knows that a CCM-eligible patient list needs to be built and maintained, who understands MDM leveling under the current E/M guidelines, who knows when Modifier 25 applies and flags it before the claim goes out.
That’s a different skill set than general billing. It’s what Dr. Billerz tests for before placing a biller on a physician practice account.
Frequently Asked Questions
How much do physician-owned practices lose to billing errors?
Industry data consistently shows 15–20% of collectible revenue lost annually in physician-owned practices — primarily from under-coding, unbilled revenue opportunities like CCM, and systematic denial patterns that compound without being caught. On a $1M/year practice, that’s $150,000–$200,000 in recoverable revenue.
What is the best billing setup for a solo physician practice?
A dedicated billing specialist with training in your specific specialty and EHR. The dedicated model at $1,120/month gives you one person whose only job is your revenue cycle — tracking CCM eligibility, correctly leveling E/M visits, managing prior auths, and working denials before they age. A shared billing service doesn’t have the account-specific focus to catch systematic gaps.
How does Chronic Care Management billing work?
CCM billing requires: at least 20 minutes of clinical staff time per month in non-face-to-face care coordination, a comprehensive care plan, patient consent, and specific documentation. When properly set up, CPT 99490 pays $42–62/patient/month under Medicare, with higher-complexity codes (99491, 99487) for additional time. A specialty-trained biller implements the documentation workflow and manages the billing monthly.
Want to find out what your practice is leaving on the table? Start the free pilot — the intake audit identifies your specific revenue gaps at no cost.
Related Resources
Medical billing for small practices | How to audit your billing performance | How to reduce denials | Family practice billing services