Highest-Volume Lumbar Fusion — Posterior Surgeons in Georgia (2026 update)
48 Georgia 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 | Dmitri Sofianos, M.D. | Savannah, GA | 61 |
| 2 | Keith Michael, MD | Atlanta, GA | 52 |
| 3 | John Dorchak, M.D. | Columbus, GA | 42 |
| 4 | Gerald Rodts, MD | Atlanta, GA | 40 |
| 5 | David Gloystein, M.D. | Columbus, GA | 37 |
| 6 | Douglas Kasow, D.O. | Lawrenceville, GA | 32 |
| 7 | Lamar Callaway, MD | Macon, GA | 30 |
| 8 | Betsy Grunch, MD | Gainesville, GA | 30 |
| 9 | Kevin Park, MD | Fayetteville, GA | 29 |
| 10 | Joseph Romano, MD | Savannah, GA | 28 |
38 more Georgia 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 Georgia?
- 48 Georgia 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.