Was Pasadena a Fraud Story or a Methodology Road Map?

The DOJ affidavit on Expert Wound Care PC is public and most in the wound care channel have read the headline numbers: $34 million paid, $2 million seized, 78 beneficiaries, eight months.

A few read further and got to the patient details.

Almost nobody read the affidavit as what it actually is—a public document that names the population-level metrics CMS uses to flag wound care practices for closer inspection.

The clinic was running outside any clinical pattern that exists in real wound care. That part is not in dispute. What stands out is the math the government used to demonstrate it. The same math is being run on every wound care practice in the country right now. Knowing the metrics is how a physician understands what their practice looks like to OIG before OIG looks closer.

What the affidavit actually measures

The affidavit names four population-level comparisons. Each one is a ratio, not a chart finding. Each one comes from public Medicare data. None of them require a subpoena, an audit, or a whistleblower disclosure to calculate.

Percentage of beneficiaries receiving skin substitutes. Expert Wound Care ran at 38.5%. The national average is 6%. The metric measures what fraction of a practice's Medicare patient panel receives a skin substitute graft in a given period. A 6% national baseline already accounts for wound care specialty practices, podiatry, and limb-preservation centers. A practice running materially above 6% is not necessarily problematic. A practice running six times above 6% is statistically distinguishable from peers.

Average allowed amount per claim against the national average. Expert Wound Care averaged roughly $37,449 per claim. The national average runs at roughly half that. The two metrics function together. A practice can sit at the high end of the fee schedule for legitimate clinical reasons. Large complex wounds, bilateral disease, and high-acuity referral panels all justify higher per-claim amounts. The defense is whether the patient panel supports the position.

Billing velocity. Expert Wound Care billed Medicare $4,975 in July 2025 and $33 million in December 2025. The affidavit treats the velocity itself as a flag. CMS dashboards register that kind of growth the same way bank fraud algorithms register it. The legitimate explanations for that kind of growth are narrow. An acquisition of an existing high-volume practice, or a major new contract going live. Neither existed at the clinic. The growth pattern itself was the tell.

Claim density per beneficiary. One Expert Wound Care beneficiary generated 27 claims in December 2025 alone, including for graft applications the affidavit alleges were not performed. The metric measures how many claims a practice files per individual patient over a defined window. Patients with multiple wounds or severe disease can carry high claim counts. The flag is when claim density across the practice's panel does not match the comorbidity profile of the panel.

Where the data comes from

Every metric the affidavit cites is calculable from public Medicare data. The Provider Utilization and Payment Data files, released annually, give per-provider totals on procedure counts, allowed amounts, and beneficiary counts. The Medicare Part B PUF gives the comparison set. State and MAC-level data fills in regional context. The methodology is documented in OIG work plan publications going back several years.

A wound care practice can run all four metrics on itself. The data is free. The only barrier to a practice knowing what it looks like to OIG is whether anyone in the practice has done the calculation.

The Pasadena affidavit made visible what OIG has been doing for years. The audit math, the benchmarks, and the underlying data are all public. A practice that does not know its own position against the national distribution is operating without information CMS already has.

What outlier status means and doesn't mean

Outlier status proves audit eligibility, not fraud. A wound care center treating real high-acuity DFU patients in a referral pattern from primary care will look statistically different from a generalist office. Both are legitimate. The question CMS asks is whether the patient panel justifies the position the practice occupies on each metric.

The clinical justification lives in the panel. A practice that can articulate why its numbers look the way they do, before anyone asks, sits in a different position from a practice that has never run the comparison. Chart-level documentation of medical necessity, conservative care failure, vascular workup, and clinical photography lives in individual patient records. Population-level justification is different. It requires the practice to show that the composition of its panel explains its statistical position.

When the panel does not support the position, changing the practice pattern is the only fix. Documentation cannot rescue a population pattern that does not match the patients.

What this changes for the practice running clean

Two things change for a practice running appropriate utilization on a real wound panel.

The first is awareness. Knowing the four metrics and the practice's position on each one converts an unknown audit risk into a known one. A practice running at 8% beneficiaries on grafts in a referral-heavy panel sits in a defensible position. The same practice running at 8% with no idea the national baseline is 6% sits in the same position but operates without the information.

The second is preparation. The CY 2026 PFS final rule did not introduce these metrics. CMS has been calculating them for years. The flat $127.28/cm² rate finalized for 2026 and the WISeR pilot (a prior-authorization pilot program) in six states moved CMS attention. The Pasadena affidavit moved industry awareness. The practices that adapt to a known measurement framework will be in a different position than the ones operating against assumptions that do not match what is being measured.

The Pasadena case showed what was visible to CMS the whole time. The road map is open. If you have not run your own numbers against the four metrics in this affidavit, that is the place to start — pull your PUF data, compare your panel composition, and if your position warrants it, loop in compliance counsel before someone else does.