Fentanyl (Duragesic) Prescribers in California
Ranked by documented Medicare Part D claim volume (2024).
1,397 providers in California have Medicare Part D claims for fentanyl. Ordering reflects documented Part D claim volume — a transparency signal, not a quality or "best" ranking. Open any provider for their full profile and what they prescribe under Medicare.
fentanyl prescribers in California
- 1View profile →James RhoM.D.
Interventional Pain Medicine Physician · Rancho Cucamonga, CA
319 Medicare Part D claims (2024)
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Pain Medicine (Anesthesiology) Physician · Bakersfield, CA
186 Medicare Part D claims (2024)
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Interventional Pain Medicine Physician · Victorville, CA
176 Medicare Part D claims (2024)
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- 13View profile →Nathan SingerM.D.
Interventional Pain Medicine Physician · Santa Maria, CA
146 Medicare Part D claims (2024)
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Hospice and Palliative Medicine (Internal Medicine) Physician · Bellflower, CA
145 Medicare Part D claims (2024)
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Pain Medicine (Anesthesiology) Physician · Tracy, CA
129 Medicare Part D claims (2024)
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Pain Medicine (Anesthesiology) Physician · Bakersfield, CA
122 Medicare Part D claims (2024)
- 21View profile →Khang LaiD. O.
Pain Medicine (Physical Medicine & Rehabilitation) Physician · Irvine, CA
115 Medicare Part D claims (2024)
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- 23View profile →Calvon VoongM.D.
Pain Medicine (Physical Medicine & Rehabilitation) Physician · Visalia, CA
113 Medicare Part D claims (2024)
- 24View profile →Ernest OhM.D.
Pain Medicine (Physical Medicine & Rehabilitation) Physician · Riverside, CA
113 Medicare Part D claims (2024)
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Pain Medicine (Anesthesiology) Physician · Apple Valley, CA
112 Medicare Part D claims (2024)
- 26View profile →Wei KwokM.D.
Pain Medicine (Anesthesiology) Physician · Fullerton, CA
105 Medicare Part D claims (2024)
- 27View profile →Robert FreyM.D.
Interventional Pain Medicine Physician · Ventura, CA
100 Medicare Part D claims (2024)
- 28View profile →Raymond GaetaM.D.
Pain Medicine (Anesthesiology) Physician · San Mateo, CA
98 Medicare Part D claims (2024)
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- 31View profile →Dinesh SharmaM.D.
Physical Medicine & Rehabilitation Physician · Visalia, CA
92 Medicare Part D claims (2024)
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Family Nurse Practitioner · San Bernardino, CA
87 Medicare Part D claims (2024)
- 37View profile →Neil SoniM.D.
Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician · Fountain Valley, CA
86 Medicare Part D claims (2024)
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- 41View profile →Patrick RhoadesM.D.
Pain Medicine (Physical Medicine & Rehabilitation) Physician · Modesto, CA
84 Medicare Part D claims (2024)
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- 46View profile →Rebecca KerrM.D.
Interventional Pain Medicine Physician · Los Angeles, CA
82 Medicare Part D claims (2024)
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Student in an Organized Health Care Education/Training Program · Los Angeles, CA
81 Medicare Part D claims (2024)
- 48View profile →T MaroonM.D.
Pain Medicine (Anesthesiology) Physician · Roseville, CA
79 Medicare Part D claims (2024)
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Medicare Part D only. Counts and ordering reflect Medicare Part D claims (2024) from CMS — they exclude cash-pay, commercial, and Medicaid prescriptions and undercount cash-pay categories (e.g. GLP-1 weight-loss, testosterone). Not a quality or "best" ranking. Absence does not mean a provider does not prescribe fentanyl. fentanyl is a Schedule II controlled substance; this is a factual claims directory only — not medical advice, not an endorsement, and not instructions for obtaining any medication. Source: CMS NPPES (June 2026).