⚠️

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 →

Weiwen ZhengM.D.

Family Practice · San Francisco, CA 94108

NPI: 1023059201

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21

🟡 Moderate

Risk Flags

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

Risk indicators are statistical patterns, not allegations. Learn more

24,163

Total Claims

$2.2M

Drug Cost

1,429

Beneficiaries

$1,506

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. 106,889 Family Practice providers

-88%

Opioid rate vs peers

0.3% vs 2.6% avg

+41%

Cost per patient vs peers

$1,506 vs $1,068 avg

+23%

Brand preference vs peers

11.1% vs 9.0% 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

⚠️

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

0.3%

Opioid Rate

74

Opioid Claims

$902

Opioid Cost

Long-Acting Rate

Brand vs Generic

89% generic

Brand: 2,658 claims · $1.7M

Generic: 21,275 claims · $452K

Top Prescribed Drugs

Drug (Generic)ClaimsCost
Empagliflozin179$296K
Linagliptin189$282K
Rivaroxaban133$196K
Apixaban99$159K
Sitagliptin Phosphate60$103K
Ipratropium/Albuterol Sulfate54$62K
Denosumab29$46K
Fluticasone/Vilanterol32$36K
Varicella-Zoster Ge/As01b/Pf177$35K
Tiotropium Bromide23$34K
Fluticasone Propionate54$34K
Dapagliflozin Propanediol20$34K
Fluticasone Propion/Salmeterol33$30K
Mirabegron24$30K
Atorvastatin Calcium1,647$28K

Prescribing Profile

158

Unique Drugs

$801K

IRA Negotiated Drugs

21.0

Anomaly Score

Patient Profile

77

Avg Age

65%

Female

1.49

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