Medicare Part D Prescribers in Orange, California

16 flagged and high-volume prescribers across 8 medical specialties.

Data: CMS Medicare Part D, 2023 (most current available) · Updated March 2026

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16

Providers

$5.8M

Total Drug Cost

0

High Risk

4.9%

Avg Opioid Rate

Top Prescribers by Drug Cost

ProviderClaimsDrug Cost
Michael Cheng1,229$1.6M
Ronald Daoud9,700$1.2M
Hal Shimazu11,911$1.1M
John Geiss12,563$874K
Kathleen Glaspy9,716$804K
Laura Skoczylas819$172K
Xuan-Binh Pham132$14K
Steven Ogaz49$201
Shiho ItoN/AN/A
Lucas PuttockN/AN/A
Kassandra KingN/AN/A
Mukti PatelN/AN/A
Traci DongN/AN/A
Joseph BarreraN/AN/A
Kristen LefsteinN/AN/A
Kenneth KimN/AN/A

Specialties in Orange

Internal Medicine

6 providers

Family Practice

3 providers

Nurse Practitioner

2 providers

Obstetrics & Gynecology

1 provider

General Surgery

1 provider

Dentist

1 provider

Physical Medicine and Rehabilitation

1 provider

Emergency Medicine

1 provider

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Data from CMS Medicare Part D Prescriber Public Use File, 2023. Only providers meeting CMS disclosure thresholds are included. Risk scores are statistical indicators based on prescribing pattern analysis — not allegations of fraud or wrongdoing.