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
16
Providers
$5.8M
Total Drug Cost
0
High Risk
4.9%
Avg Opioid Rate
Top Prescribers by Drug Cost
| Provider | Claims | Drug Cost |
|---|---|---|
| Michael Cheng | 1,229 | $1.6M |
| Ronald Daoud | 9,700 | $1.2M |
| Hal Shimazu | 11,911 | $1.1M |
| John Geiss | 12,563 | $874K |
| Kathleen Glaspy | 9,716 | $804K |
| Laura Skoczylas | 819 | $172K |
| Xuan-Binh Pham | 132 | $14K |
| Steven Ogaz | 49 | $201 |
| Shiho Ito | N/A | N/A |
| Lucas Puttock | N/A | N/A |
| Kassandra King | N/A | N/A |
| Mukti Patel | N/A | N/A |
| Traci Dong | N/A | N/A |
| Joseph Barrera | N/A | N/A |
| Kristen Lefstein | N/A | N/A |
| Kenneth Kim | N/A | N/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.