Highest-Volume Partial Knee Replacement Surgeons in Missouri (2026 update)
5 Missouri providers billed Medicare for Partial Knee Replacement (CPT 27446) 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 | Thomas Aleto, MD | Columbia, MO | 74 |
| 2 | Alan Anz, MD | Columbia, MO | 49 |
| 3 | Ryan Nunley, MD | Saint Louis, MO | 19 |
| 4 | Richard Johnston, MD | Saint Louis, MO | 16 |
| 5 | Dane Glueck, MD | St. Peters, MO | 12 |
Frequently asked questions
- How many surgeons perform Partial Knee Replacement in Missouri?
- 5 Missouri providers billed Medicare for Partial Knee Replacement (CPT 27446) 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.