⚠️

Risk scores are statistical indicators based on prescribing patterns compared to specialty peers. They are NOT allegations of fraud, misconduct, or improper care. Many legitimate medical reasons can explain outlier prescribing.

Read our methodology →

Matthew LeffermanDO

Internal Medicine · Los Angeles, CA 90035

NPI: 1184622417

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24

🟡 Moderate

ML Fraud Detection Score: 95%

Machine learning model identifies prescribing patterns consistent with confirmed fraud cases. This is a statistical indicator, not an accusation.

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Risk Flags

High antipsychotic prescribing (65+)Opioid + benzodiazepine co-prescriberHigh fills per patient

Risk indicators are statistical patterns, not allegations. Learn more

32,191

Total Claims

$2.0M

Drug Cost

1,045

Beneficiaries

$1,915

Cost/Patient

Risk Score Breakdown 24/100

Low (0)Moderate (15)Elevated (30)High (50+)
Elderly antipsychotic prescribing+10
Opioid + benzodiazepine combo+8
High fills per patient+3

Score components are additive. Read full methodology

Peer Comparison vs. 110,156 Internal Medicine providers

-19%

Opioid rate vs peers

1.8% vs 2.2% avg

+36%

Cost per patient vs peers

$1,915 vs $1,411 avg

-3%

Brand preference vs peers

10.3% vs 10.6% avg

⚠️ Opioid + Benzodiazepine Co-Prescriber

This provider prescribes both opioids and benzodiazepines. The FDA has issued a Black Box Warning about the life-threatening risks of concurrent use.

🔎 Data Overview

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Our machine learning model — trained on 281 confirmed fraud cases — gives this provider a "Very High" fraud-pattern score. All 20 decision trees in our ensemble model agree that this provider's prescribing patterns resemble those of confirmed fraud cases. This is a statistical finding, not an accusation.

⚠️

This provider co-prescribes opioids and benzodiazepines — a combination carrying an FDA Black Box Warning due to increased risk of respiratory depression and death. While sometimes clinically necessary, this combination requires careful justification.

Insights generated from CMS data analysis. Statistical patterns are not accusations — always consider clinical context.

Opioid Prescribing

1.8%

Opioid Rate

584

Opioid Claims

$11K

Opioid Cost

2.1%

Long-Acting Rate

Brand vs Generic

90% generic

Brand: 3,296 claims · $1.3M

Generic: 28,685 claims · $715K

Top Prescribed Drugs

Drug (Generic)ClaimsCost
Apixaban595$321K
Rivaroxaban163$92K
Mirabegron143$63K
Sitagliptin Phosphate83$43K
Memantine Hcl714$38K
Brexpiprazole31$37K
Rifaximin12$35K
Empagliflozin58$32K
Dulaglutide29$32K
Sacubitril/Valsartan55$29K
Cyclosporine38$25K
Linaclotide43$24K
Quetiapine Fumarate1,403$24K
Memantine Hcl198$24K
Insulin Glargine,hum.Rec.Anlog46$23K

Prescribing Profile

259

Unique Drugs

$542K

IRA Negotiated Drugs

$54K

GLP-1 Drugs

24.0

Anomaly Score

Patient Profile

84

Avg Age

70%

Female

2.16

Avg Risk Score

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Data from CMS Medicare Part D Prescriber Public Use File, 2023. Risk scores are statistical indicators, not allegations of wrongdoing.Methodology · About · Dispute this data