Highest-Volume Lumbar Fusion — Combined (TLIF/PLIF) Surgeons in Idaho (2026 update)
9 Idaho providers billed Medicare for Lumbar Fusion — Combined (TLIF/PLIF) (CPT 22633) 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 | Gregory Dietrich, MD | Lewiston, ID | 25 |
| 2 | Gregory Harrison, M.D. | Pocatello, ID | 24 |
| 3 | Brandon Kelly, M.D. | Idaho Falls, ID | 22 |
| 4 | Paul Montalbano, MD | Boise, ID | 19 |
| 5 | Abraham Schlauderaff, MD | Idaho Falls, ID | 19 |
| 6 | Kenneth Little, MD | Boise, ID | 18 |
| 7 | Christian Zimmerman, MD | Boise, ID | 12 |
| 8 | Daniel Miller, MD | Lewiston, ID | 12 |
| 9 | Michael Hajjar, MD | Boise, ID | 12 |
Frequently asked questions
- How many surgeons perform Lumbar Fusion — Combined (TLIF/PLIF) in Idaho?
- 9 Idaho providers billed Medicare for Lumbar Fusion — Combined (TLIF/PLIF) (CPT 22633) 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.