Highest-Volume Total Hip Replacement (THA) Surgeons in Washington DC (2026 update)
10 Washington DC providers billed Medicare for Total Hip Replacement (THA) (CPT 27130) 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 | Anthony Unger, M.D. | Washington, DC | 74 |
| 2 | Savyasachi Thakkar, M.D. | Washington, DC | 59 |
| 3 | Kenneth Vaz, MD | Washington, DC | 59 |
| 4 | Sandesh Rao, MD | Washington, DC | 40 |
| 5 | Afamefuna Nduaguba, MD | Washington, DC | 31 |
| 6 | Matthew Harb, M.D. | Washington, DC | 28 |
| 7 | Kevin Park, MD | Washington, DC | 26 |
| 8 | Ahamefula Onyike, MD | Washington, DC | 24 |
| 9 | Brian Evans, MD | Washington, DC | 18 |
| 10 | Robert Sterling, M.D. | Washington, DC | 16 |
Frequently asked questions
- How many surgeons perform Total Hip Replacement (THA) in Washington DC?
- 10 Washington DC providers billed Medicare for Total Hip Replacement (THA) (CPT 27130) 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.