Highest-Volume Leadless Pacemaker Insertion Surgeons in Illinois (2026 update)
20 Illinois providers billed Medicare for Leadless Pacemaker Insertion (CPT 33274) 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 | Wissam Derian, MD | Quincy, IL | 31 |
| 2 | Nicholas Serafini, M.D. | Park Ridge, IL | 27 |
| 3 | Fadi Abou Obeid, MD | Carbondale, IL | 25 |
| 4 | Tonye Teme, M.D. | Mchenry, IL | 24 |
| 5 | Mark Metzl, MD | Evanston, IL | 23 |
| 6 | John Hammock, M.D. | Quincy, IL | 21 |
| 7 | Ahmed Hussein, MD | Olympia Fields, IL | 20 |
| 8 | Eyad Alhaj, MD | Bourbonnais, IL | 16 |
| 9 | Jens Philip Vilhelm Aagaard, M.D. | Park Ridge, IL | 16 |
| 10 | Oleg Yurevich, MD | Chicago, IL | 16 |
10 more Illinois 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 Leadless Pacemaker Insertion in Illinois?
- 20 Illinois providers billed Medicare for Leadless Pacemaker Insertion (CPT 33274) 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.