Highest-Volume Lumbar Fusion — Posterior Surgeons in Washington (2026 update)
20 Washington providers billed Medicare for Lumbar Fusion — Posterior (CPT 22612) 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 | Melvin Wahl, MD | Richland, WA | 79 |
| 2 | Peter Nora, MD | Seattle, WA | 43 |
| 3 | Lee Sandquist, D.O. | Spokane Valley, WA | 36 |
| 4 | Matthew Fewel, MD | Richland, WA | 30 |
| 5 | Hank Vejvoda, M.D. | Wenatchee, WA | 23 |
| 6 | Alireza Anissipour, D.O. | Everett, WA | 23 |
| 7 | Ramana Gorrepati | Bellingham, WA | 22 |
| 8 | Alexander Arzeno, MD | Issaquah, WA | 19 |
| 9 | Nicholas Spina, MD | Seattle, WA | 19 |
| 10 | Andrew Manista, MD | Olympia, WA | 19 |
10 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 Lumbar Fusion — Posterior in Washington?
- 20 Washington providers billed Medicare for Lumbar Fusion — Posterior (CPT 22612) 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.