Highest-Volume Lumbar Fusion — Posterior Surgeons in Tennessee (2026 update)
36 Tennessee 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 | Edward Mackey, MD | Nashville, TN | 79 |
| 2 | Steven Abram, M.D. | Nashville, TN | 73 |
| 3 | Oran Aaronson, MD | Nashville, TN | 70 |
| 4 | Scott Parker, M.D. | Nashville, TN | 62 |
| 5 | Samuel Schroerlucke, M.D. | Memphis, TN | 49 |
| 6 | Paul Johnson, M.D. | Knoxville, TN | 41 |
| 7 | Colin Crosby, MD | Nashville, TN | 36 |
| 8 | John Klekamp, MD | Franklin, TN | 36 |
| 9 | Colin Booth, M.D. | Knoxville, TN | 36 |
| 10 | Carl Hampf, M.D. | Nashville, TN | 33 |
26 more Tennessee 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 Tennessee?
- 36 Tennessee 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.