Highest-Volume Total Shoulder Replacement Surgeons in California (2026 update)
144 California providers billed Medicare for Total Shoulder Replacement (CPT 23472) 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 | Hafiz Kassam, MD | Newport Beach, CA | 139 |
| 2 | Kirk Jensen, MD | Lafayette, CA | 127 |
| 3 | Patrick St.Pierre, M.D. | Rancho Mirage, CA | 127 |
| 4 | Julia Lee, MD | Fresno, CA | 96 |
| 5 | John Costouros, MD | Redwood City, CA | 90 |
| 6 | Samera Kasim, DO | Monterey, CA | 88 |
| 7 | David Savin, M.D. | Palm Springs, CA | 86 |
| 8 | Emilie Cheung, MD | Stanford, CA | 85 |
| 9 | Brian Rebolledo, M.D. | La Jolla, CA | 83 |
| 10 | Daniel Debottis, MD | Orange, CA | 82 |
134 more California 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 Total Shoulder Replacement in California?
- 144 California providers billed Medicare for Total Shoulder Replacement (CPT 23472) 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.