Highest-Volume Radiofrequency Ablation — Lumbar Facet Surgeons in California (2026 update)
364 California providers billed Medicare for Radiofrequency Ablation — Lumbar Facet (CPT 64635) in 2024. The top 10 by case volume are below — the full ranked list, CSV export and competitor-payment intel are available with a DocVol subscription ($199/mo, cancel anytime).
Database refreshed July 2026Live NPPES registryⓘ sources
| # | Surgeon | Location | Medicare cases (2024) |
|---|---|---|---|
| 1 | Farzad Sabet, MD | Redding, CA | 361 |
| 2 | Kiumars Arfai, MD | Mission Hills, CA | 347 |
| 3 | Forrest Monroe, MD | Redding, CA | 282 |
| 4 | Theodore Workman, MD | Redding, CA | 277 |
| 5 | Hazmer Cassim, D.O. | Rancho Mirage, CA | 201 |
| 6 | Jacqueline Weisbein, D.O. | Napa, CA | 161 |
| 7 | Mark Ignatius, D.O. | San Francisco, CA | 155 |
| 8 | Vinod Mungalpara, MD | Bakersfield, CA | 144 |
| 9 | David Lindenberg, D.O. | Turlock, CA | 143 |
| 10 | Gabriel Garcia-Diaz, M.D. | Merced, CA | 140 |
354 more California surgeons in the full list
Plus: who already pays them (Stryker? Medtronic? Arthrex?), CSV export for your CRM, and every other state and procedure.
Search the full databaseFrequently asked questions
- How many surgeons perform Radiofrequency Ablation — Lumbar Facet in California?
- 364 California providers billed Medicare for Radiofrequency Ablation — Lumbar Facet (CPT 64635) in CY2024. CMS suppresses providers with 10 or fewer Medicare patients, so the true count is somewhat higher.
- Where does this data come from?
- CMS Medicare Physician & Other Practitioners (fee-for-service Part B claims, CY2024, released May 2026) and CMS Open Payments. Both are official U.S. federal datasets.
- Does this include all of a surgeon's cases?
- No — it covers traditional Medicare only (no Medicare Advantage, commercial, or Medicaid claims). Absolute volumes undercount total practice, but the ranking of high- vs low-volume surgeons is a strong targeting signal.