⚠️

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 →

Alexander ChanM.D.

Internal Medicine · Stockton, CA 95219

NPI: 1386722296

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26

🟡 Moderate

ML Fraud Detection Score: 92%

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-prescriberExtreme fills per patient

Risk indicators are statistical patterns, not allegations. Learn more

33,465

Total Claims

$2.4M

Drug Cost

798

Beneficiaries

$3,023

Cost/Patient

Risk Score Breakdown 26/100

Low (0)Moderate (15)Elevated (30)High (50+)
Elderly antipsychotic prescribing+10
Opioid + benzodiazepine combo+8
High fills per patient+5

Score components are additive. Read full methodology

Peer Comparison vs. 110,156 Internal Medicine providers

+134%

Opioid rate vs peers

5.2% vs 2.2% avg

+114%

Cost per patient vs peers

$3,023 vs $1,411 avg

+86%

Brand preference vs peers

19.7% 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

🤖

ML fraud detection score of 92% indicates prescribing patterns with significant similarity to confirmed fraud cases. 18 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

5.2%

Opioid Rate

1,751

Opioid Claims

$44K

Opioid Cost

7.8%

Long-Acting Rate

Brand vs Generic

80% generic

Brand: 6,585 claims · $1.6M

Generic: 26,788 claims · $817K

Top Prescribed Drugs

Drug (Generic)ClaimsCost
Apixaban774$223K
Pimavanserin Tartrate70$163K
Rivaroxaban470$129K
Sitagliptin Phosphate429$124K
Valbenazine Tosylate29$96K
Dulaglutide124$90K
Linagliptin312$87K
Memantine Hcl/Donepezil Hcl229$65K
Rifaximin33$64K
Ipratropium/Albuterol Sulfate84$43K
Insulin Aspart135$42K
Insulin Glargine,hum.Rec.Anlog119$40K
Lacosamide122$35K
Insulin Detemir87$29K
Tiotropium Bromide57$26K

Prescribing Profile

241

Unique Drugs

$550K

IRA Negotiated Drugs

$97K

GLP-1 Drugs

26.0

Anomaly Score

Patient Profile

79

Avg Age

60%

Female

2.91

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