Knee replacement in California: the highest-volume physicians
507 physicians in California billed Medicare for 23,837 knee replacement procedures in 2024. The top 26, with the year before beside it.
Top 26
| Rank | Physician | 2024 | 2023 | Change |
|---|---|---|---|---|
| 1 | Alexander P. Sah, MDOrthopedic Surgery · Fremont | 513 | 588 | −13% |
| 2 | Andrew G. Yun, MDOrthopedic Surgery · Beverly Hills | 373 | 356 | +5% |
| 3 | John T. Dearborn, MDOrthopedic Surgery · Menlo Park | 318 | 311 | +2% |
| 4 | Ghassan E. Boghosian, DOOrthopedic Surgery · Rancho Mirage | 296 | 264 | +12% |
| 5 | Harpreet S. Bawa, MDOrthopedic Surgery · Westlake Village | 217 | 195 | +11% |
| 6 | John N. Diana, MDOrthopedic Surgery · Napa | 207 | 208 | +0% |
| 7 | Jay Patel, MDOrthopedic Surgery · Orange | 199 | 173 | +15% |
| 8 | Ryan E. Moore, MDOrthopedic Surgery · Saint Helena | 188 | 148 | +27% |
| 9 | Thomas D. Ferro, MDOrthopedic Surgery · Arroyo Grande | 183 | 176 | +4% |
| 10 | Brock Cummings, MDOrthopedic Surgery · Paradise | 182 | 173 | +5% |
| 10 | Matthew J. Simons, MDOrthopedic Surgery · Fresno | 182 | 172 | +6% |
| 12 | Fadi Saied, DOOrthopedic Surgery · Bakersfield | 181 | 148 | +22% |
| 12 | Travis Scudday, MDOrthopedic Surgery · Orange | 181 | 130 | +39% |
| 14 | Erik A. Schnaser, MDOrthopedic Surgery · Rancho Mirage | 177 | 234 | −24% |
| 15 | Wendy W. Wong, MDOrthopedic Surgery · Walnut Creek | 173 | 117 | +48% |
| 16 | Henry M. Dunn, MDOrthopedic Surgery · Fresno | 163 | 83 | +96% |
| 17 | Todd B. Dietrick, MDOrthopedic Surgery · Pasadena | 159 | 194 | −18% |
| 18 | William R. Gallivan, MDOrthopedic Surgery · Santa Barbara | 157 | 156 | +1% |
| 19 | Jaime D. Hernandez, MDOrthopedic Surgery · Van Nuys | 152 | 124 | +23% |
| 20 | William D. Bugbee, MDOrthopedic Surgery · La Jolla | 148 | 128 | +16% |
| 21 | Stephen M. Howell, MDOrthopedic Surgery · Sacramento | 147 | 220 | −33% |
| 22 | Matthew D. Miller, MDOrthopedic Surgery · Stanford | 146 | 95 | +54% |
| 23 | Steven N. Copp, MDOrthopedic Surgery · La Jolla | 144 | 108 | +33% |
| 24 | Scott T. Ball, MDOrthopedic Surgery · San Diego | 141 | 130 | +8% |
| 25 | Derek T. Ward, MDOrthopedic Surgery · San Francisco | 140 | 74 | +89% |
| 25 | Brad L. Penenberg, MDOrthopedic Surgery · Beverly Hills | 140 | 154 | −9% |
A rank counts procedures billed under the physician's own NPI (CPT 27447), in 2024, Medicare fee-for-service only. A surgeon who mostly treats younger or Medicare Advantage patients will rank lower than their total volume. Method and limits.