Highest-Volume Pacemaker — Dual Chamber Surgeons in Maryland (2026 update)
49 Maryland providers billed Medicare for Pacemaker — Dual Chamber (CPT 33208) 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 | Paresh Shah, M.D. | Baltimore, MD | 87 |
| 2 | Emmanuel Nsah, M.D. | Salisbury, MD | 83 |
| 3 | Eric Schwartz, MD | Columbia, MD | 77 |
| 4 | Alexander Asser, M.D. | Rockville, MD | 76 |
| 5 | Alan Schneider, M.D. | Silver Spring, MD | 71 |
| 6 | Nilofar Islam, MD | Towson, MD | 58 |
| 7 | Sunjeet Sidhu, M.D. | Baltimore, MD | 56 |
| 8 | Vikas Kalra, MD | Towson, MD | 55 |
| 9 | Sung Lee, M.D. | Takoma Park, MD | 54 |
| 10 | Arooge Towheed, M.D | Largo, MD | 52 |
39 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 Pacemaker — Dual Chamber in Maryland?
- 49 Maryland providers billed Medicare for Pacemaker — Dual Chamber (CPT 33208) 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.