Highest-Volume Pacemaker — Dual Chamber Surgeons in New Hampshire (2026 update)
18 New Hampshire 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 | Dingxin Qin, M.D | Manchester, NH | 45 |
| 2 | Kevin Kwaku, M.D., PH.D. | Lebanon, NH | 41 |
| 3 | Evan Grove, MD | Lebanon, NH | 39 |
| 4 | Jeanney Lew, M.D. | Manchester, NH | 33 |
| 5 | Steven Schwartz, MD | Nashua, NH | 29 |
| 6 | Clayton Jones, M.D. | Concord, NH | 29 |
| 7 | Fernando Contreras-Valdes, M.D. | Lebanon, NH | 26 |
| 8 | Tong Zhu, MD | Manchester, NH | 25 |
| 9 | Jinu John, M.D. | Manchester, NH | 25 |
| 10 | Adam Chodosh, M.D. | Concord, NH | 25 |
8 more New Hampshire 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 New Hampshire?
- 18 New Hampshire 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.