Hip replacement in California: the highest-volume physicians
356 physicians in California billed Medicare for 14,487 hip replacement procedures in 2024. The top 25, with the year before beside it.
Top 25
| Rank | Physician | 2024 | 2023 | Change |
|---|---|---|---|---|
| 1 | Andrew G. Yun, MDOrthopedic Surgery · Beverly Hills | 301 | 335 | −10% |
| 2 | Alexander P. Sah, MDOrthopedic Surgery · Fremont | 266 | 256 | +4% |
| 3 | Louay Toma, MDOrthopedic Surgery · Walnut Creek | 194 | 200 | −3% |
| 4 | Robert E. Mayle, MDOrthopedic Surgery · Stanford | 192 | 166 | +16% |
| 5 | Harpreet S. Bawa, MDOrthopedic Surgery · Westlake Village | 184 | 144 | +28% |
| 6 | John T. Dearborn, MDOrthopedic Surgery · Menlo Park | 174 | 204 | −15% |
| 7 | Ghassan E. Boghosian, DOOrthopedic Surgery · Rancho Mirage | 168 | 156 | +8% |
| 8 | Erik A. Schnaser, MDOrthopedic Surgery · Rancho Mirage | 160 | 193 | −17% |
| 9 | Dimitri Delagrammaticas, MDOrthopedic Surgery · San Luis Obispo | 148 | 126 | +17% |
| 10 | Jay Patel, MDOrthopedic Surgery · Orange | 141 | 127 | +11% |
| 11 | Nader A. Nassif, MDOrthopedic Surgery · Newport Beach | 138 | 158 | −13% |
| 12 | Frederick W. Penczak, MDGeneral Surgery · San Rafael | 128 | 85 | +51% |
| 13 | Brock Cummings, MDOrthopedic Surgery · Paradise | 125 | 121 | +3% |
| 13 | Bryan C. Emmerson, MDOrthopedic Surgery · Santa Barbara | 125 | 91 | +37% |
| 15 | John N. Diana, MDOrthopedic Surgery · Napa | 122 | 118 | +3% |
| 15 | Brad L. Penenberg, MDOrthopedic Surgery · Beverly Hills | 122 | 138 | −12% |
| 17 | James Hartford, MDOrthopedic Surgery · Palo Alto | 119 | 85 | +40% |
| 18 | Jeffrey J. Barry, MDOrthopedic Surgery · San Francisco | 116 | 90 | +29% |
| 18 | Jaime D. Hernandez, MDOrthopedic Surgery · Van Nuys | 116 | 102 | +14% |
| 20 | Ryan E. Moore, MDOrthopedic Surgery · Saint Helena | 112 | 104 | +8% |
| 20 | Scott T. Ball, MDOrthopedic Surgery · San Diego | 112 | 97 | +15% |
| 22 | Peter Callander, MDOrthopedic Surgery · San Francisco | 110 | 78 | +41% |
| 23 | Anna A. Kulidjian, MD, MSC, FRCSCOrthopedic Surgery · La Jolla | 109 | 68 | +60% |
| 24 | Travis Scudday, MDOrthopedic Surgery · Orange | 106 | 88 | +20% |
| 25 | Michael B. Gerhardt, MDSports Medicine · Santa Monica | 105 | 67 | +57% |
A rank counts procedures billed under the physician's own NPI (CPT 27130), 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.