Highest-Volume Colonoscopy with Biopsy Surgeons in Washington (2026 update)
344 Washington providers billed Medicare for Colonoscopy with Biopsy (CPT 45380) 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 | Ningxin Zeng, MD | Kennewick, WA | 273 |
| 2 | Harpreet Brar, MD | Olympia, WA | 227 |
| 3 | Samit Datta, M.D. | Mount Vernon, WA | 221 |
| 4 | Yuen Yee, MD | Silverdale, WA | 203 |
| 5 | Harry Teicher, MD | Seattle, WA | 200 |
| 6 | Nicholas Weber, MD | Olympia, WA | 199 |
| 7 | Oussama Moussan, M.D. | Tacoma, WA | 195 |
| 8 | Miguel Ordonez Castellanos, MD | Spokane, WA | 194 |
| 9 | Gonzalo Pandolfi, MD | Yakima, WA | 187 |
| 10 | Wen-Huan Ho, MD | Bellingham, WA | 183 |
334 more Washington 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 Colonoscopy with Biopsy in Washington?
- 344 Washington providers billed Medicare for Colonoscopy with Biopsy (CPT 45380) 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.