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ZIMMER US INC

UEI KZVRFB7NM8T1 · MEDICAL, DENTAL, AND HOSPITAL EQUIPMENT AND SUPPLIES MERCHANT WHOLESALERS

Primary agency: Department of Defense

Composite

0.466

↓ 0.004 vs prior day

Percentile

99.6th

among flagged today

Lifetime $

$18.3M

across all federal awards

Awards

351

lifetime count

Detectors fired today:Benford's LawIsolation ForestSole-Source Concentration

Scored July 29, 2026 · DoD

The brief

Three detectors fired for Zimmer US Inc. The Benford test found the leading digits of award amounts deviate significantly from expected natural frequencies, with digits 2, 3, and 4 appearing far more often than theory predicts and digit 1 appearing much less frequently. The Isolation Forest algorithm flagged the entity as a multivariate outlier based on its feature profile. The sole-source concentration detector identified that this entity wins awards through sole-source procurement at a rate dramatically exceeding its peer group in medical equipment wholesale.

The Benford test showed a KS statistic of 0.244 with p-value of 1.65e-18 across 350 transactions. Sole-source awards comprised 342 of 351 lifetime awards, or 97.7 percent, compared to a median of 1.2 percent among 122 peers in the same NAICS code, yielding a z-score of 3.30. The Isolation Forest anomaly score was 0.759 on a scale where higher indicates greater outlier status. The entity has accumulated 18.3 million dollars across its lifetime award history.

These statistical signals warrant scrutiny but do not constitute proof of fraud. Medical equipment suppliers may legitimately receive sole-source awards due to specialized product requirements or existing supply relationships with DoD. The Benford deviation could reflect genuine business practices in pricing or contract structuring rather than manipulation. The small peer group size and industry-specific procurement patterns should be considered when evaluating whether these anomalies reflect actual misconduct or normal variation in this sector.

Auto-generated by AI · Methodology →

Detector breakdown

Benford's Law

Score 1.000

Looks for unnatural patterns in the first digit of award amounts. Real-world dollar amounts follow a predictable distribution where the digit "1" appears in ~30% of values. Deviations can indicate manipulation or manufactured numbers.

Finding for this entity

KS statistic
0.2439
p-value
1.65 × 10^-18
Transactions
350
How to read Benford's Law

Isolation Forest (Multivariate Outlier)

Score 0.759

Machine learning method that finds contractors whose overall profile — agency mix, sole-source rate, NAICS spread, modification frequency — is statistically unlike anyone else's.

Finding for this entity

Anomaly score (raw)
-0.690
Contamination
0.05
How to read Isolation Forest

Sole-Source Concentration

Score 0.909

Contractors that win far more non-competitive awards than industry peers. Sole-source contracts are legal and sometimes necessary; extreme concentration is unusual.

Finding for this entity

Sole-source share
97.7%
Sole-source awards
342
Total awards
350
Peer median share
1.2%
Peer count
122
Z-score
3.30
How to read Sole-Source Concentration

Score over time

0.000.250.50May 28, 2026Jul 29, 2026

Composite over 3 days · rank 32 today (was #188 on May 28, 2026)

Flagged contracts

Contracts that triggered one or more detectors above.

No single contract is implicated — the detectors that fired summarize the entity's portfolio as a whole.

View all contracts for ZIMMER US INC on USAspending.gov →