Highest-Volume Spinal Cord Stimulator — Generator Implant Surgeons in Maryland (2026 update)
14 Maryland providers billed Medicare for Spinal Cord Stimulator — Generator Implant (CPT 63685) 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 | Charles Simmons, M.D. | Annapolis, MD | 71 |
| 2 | Zvezdomir Zamfirov, M.D. | Glen Burnie, MD | 42 |
| 3 | Neil O'malley, M.D. | Hagerstown, MD | 21 |
| 4 | Ira Garonzik, M.D. | Baltimore, MD | 21 |
| 5 | Eric Finkelstein, MD | Owings Mills, MD | 20 |
| 6 | Vipul Mangal, M.D. | Oxon Hill, MD | 20 |
| 7 | Vivek Sindhi, MD, MBA | Glen Burnie, MD | 19 |
| 8 | Oluseyi Fadayomi, M.D., MSC. | Annapolis, MD | 18 |
| 9 | Gurtej Singh, M.D. | Catonsville, MD | 18 |
| 10 | Scott Mcgovern, MD | Salisbury, MD | 17 |
4 more Maryland 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 Spinal Cord Stimulator — Generator Implant in Maryland?
- 14 Maryland providers billed Medicare for Spinal Cord Stimulator — Generator Implant (CPT 63685) 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.