Highest-Volume Transcatheter Mitral Repair (Clip) Surgeons in Massachusetts (2026 update)
7 Massachusetts providers billed Medicare for Transcatheter Mitral Repair (Clip) (CPT 33418) 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 | Roger Laham, M.D. | Boston, MA | 51 |
| 2 | David Liu, MD | Boston, MA | 50 |
| 3 | Pinak Shah, MD | Boston, MA | 24 |
| 4 | David Gross, MD, PHD | Boston, MA | 17 |
| 5 | Gautam Gadey, M.D. | Burlington, MA | 14 |
| 6 | Ashequl Islam, MD | Springfield, MA | 12 |
| 7 | Nilay Patel, MD | Boston, MA | 11 |
Frequently asked questions
- How many surgeons perform Transcatheter Mitral Repair (Clip) in Massachusetts?
- 7 Massachusetts providers billed Medicare for Transcatheter Mitral Repair (Clip) (CPT 33418) 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.