Highest-Volume Nasal/Sinus Endoscopy — Surgical Surgeons in Maryland (2026 update)
28 Maryland providers billed Medicare for Nasal/Sinus Endoscopy — Surgical (CPT 31237) 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 | James Oberman, M.D. | Frederick, MD | 137 |
| 2 | Nicholas Rowan, M.D. | Baltimore, MD | 96 |
| 3 | Murugappan Ramanathan, M.D. | Baltimore, MD | 62 |
| 4 | Joydeep Som, MD | Annapolis, MD | 60 |
| 5 | Scott London, M.D. | Owings Mills, MD | 58 |
| 6 | Andrew Lane, M.D. | Baltimore, MD | 49 |
| 7 | Lee Kleiman, M.D. | Severna Park, MD | 45 |
| 8 | Robert Meek, M.D. | Annapolis, MD | 45 |
| 9 | Nyall London, MD/PHD | Baltimore, MD | 39 |
| 10 | Juan Pardo, MD | Annapolis, MD | 38 |
18 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 Nasal/Sinus Endoscopy — Surgical in Maryland?
- 28 Maryland providers billed Medicare for Nasal/Sinus Endoscopy — Surgical (CPT 31237) 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.