Medicare Part D Prescribers in Santa Rosa, California
12 flagged and high-volume prescribers across 6 medical specialties.
Data: CMS Medicare Part D, 2023 (most current available) · Updated March 2026
12
Providers
$3.3M
Total Drug Cost
0
High Risk
4.8%
Avg Opioid Rate
Top Prescribers by Drug Cost
| Provider | Claims | Drug Cost |
|---|---|---|
| Eran Matalon | 9,671 | $905K |
| Larry Marianella | 11,789 | $871K |
| James Trapnell | 11,970 | $818K |
| C. Roger Turk | 11,288 | $700K |
| Raymond Wong | N/A | N/A |
| Jesse Gormley | N/A | N/A |
| Jeannie Zanetti | N/A | N/A |
| Cheri Quincy | N/A | N/A |
| Peter Pappas | N/A | N/A |
| Muzhda Rezai | N/A | N/A |
| Peter Muraki | N/A | N/A |
| John Alchemy | N/A | N/A |
Specialties in Santa Rosa
Internal Medicine
3 providers
Family Practice
3 providers
Pharmacist
3 providers
Nurse Practitioner
1 provider
Orthopedic Surgery
1 provider
Urology
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.