⚠️

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 →

Douglas ZhangM.D.

General Practice · San Leandro, CA 94578

NPI: 1023074341

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21

🟡 Moderate

🤖 ML Fraud Detection Score: 85%

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

Learn more →

Risk Flags

High antipsychotic prescribing (65+)Opioid + benzodiazepine co-prescriber

Risk indicators are statistical patterns, not allegations. Learn more

13,032

Total Claims

$1.5M

Drug Cost

906

Beneficiaries

$1,610

Cost/Patient

Risk Score Breakdown 21/100

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

Score components are additive. Read full methodology

Peer Comparison vs. 7,389 General Practice providers

+24%

Opioid rate vs peers

3.1% vs 2.5% avg

+43%

Cost per patient vs peers

$1,610 vs $1,128 avg

+51%

Brand preference vs peers

12.7% vs 8.4% 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

🤖

ML fraud detection score of 85% indicates prescribing patterns with significant similarity to confirmed fraud cases. 17 out of 20 decision trees flagged this provider.

⚠️

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

3.1%

Opioid Rate

401

Opioid Claims

$7,402

Opioid Cost

Long-Acting Rate

Brand vs Generic

87% generic

Brand: 1,639 claims · $1.1M

Generic: 11,236 claims · $320K

Top Prescribed Drugs

Drug (Generic)ClaimsCost
Empagliflozin102$125K
Rivaroxaban80$93K
Apixaban90$88K
Dapagliflozin Propanediol76$74K
Semaglutide49$67K
Sitagliptin Phosphate41$53K
Linagliptin38$50K
Fluticasone/Umeclidin/Vilanter61$46K
Insulin Glargine,hum.Rec.Anlog62$43K
Tirzepatide28$31K
Denosumab16$27K
Dulaglutide18$26K
Sacubitril/Valsartan24$22K
Insulin Lispro22$21K
Fluticasone Propion/Salmeterol37$19K

Prescribing Profile

169

Unique Drugs

$464K

IRA Negotiated Drugs

$142K

GLP-1 Drugs

21.0

Anomaly Score

Patient Profile

75

Avg Age

54%

Female

1.31

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.Methodology · About