Highest-Volume Laparoscopic Cholecystectomy Surgeons in Maryland (2026 update)
51 Maryland providers billed Medicare for Laparoscopic Cholecystectomy (CPT 47562) 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 | Alae Zarif, M.D. | Berlin, MD | 46 |
| 2 | Patrick Schimpf, M.D. | Annapolis, MD | 46 |
| 3 | William Bair, M.D. | Cambridge, MD | 38 |
| 4 | Un Chin, MD | Salisbury, MD | 30 |
| 5 | Gina Massoglia, MD | Annapolis, MD | 28 |
| 6 | Shawn Tweedt, D.O. | Olney, MD | 27 |
| 7 | Vincent Sayan, M.D. | Annapolis, MD | 26 |
| 8 | Dabanjan Bandyopadhyay, D.O | Easton, MD | 26 |
| 9 | Michael Stasko, M.D. | Cumberland, MD | 24 |
| 10 | Shyam Jayaraman, MD | Frederick, MD | 24 |
41 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 Laparoscopic Cholecystectomy in Maryland?
- 51 Maryland providers billed Medicare for Laparoscopic Cholecystectomy (CPT 47562) 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.