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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 →

Michael O'brienM.D.

Family Practice · Castro Valley, CA 94546

NPI: 1821181215

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29

🟡 Moderate

🚫 This provider appears on the OIG List of Excluded Individuals/Entities (LEIE)

Exclusion type: 1128b4 · Date: 20241219 · State: CA

Risk Flags

Elevated antipsychotic prescribing (65+)OIG Excluded ProviderHigh fills per patient

Risk indicators are statistical patterns, not allegations. Learn more

3,136

Total Claims

$242K

Drug Cost

162

Beneficiaries

$1,492

Cost/Patient

Risk Score Breakdown 29/100

Low (0)Moderate (15)Elevated (30)High (50+)
OIG excluded provider+20
Elderly antipsychotic prescribing+5
High fills per patient+3

Score components are additive. Read full methodology

Peer Comparison vs. 106,889 Family Practice providers

-1%

Opioid rate vs peers

2.6% vs 2.6% avg

+40%

Cost per patient vs peers

$1,492 vs $1,068 avg

+61%

Brand preference vs peers

14.5% vs 9.0% avg

Opioid Prescribing

2.6%

Opioid Rate

80

Opioid Claims

$2,530

Opioid Cost

Long-Acting Rate

Brand vs Generic

86% generic

Brand: 450 claims · $158K

Generic: 2,662 claims · $82K

Patient Profile

79

Avg Age

54%

Female

1.26

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