Public Medicare data rankings · California

Top 25 Knee Replacement Surgeons in California

5,147 verified Medicare cases Updated May 2026

Rankings reflect Medicare procedure volume, one factor among many. Volume does not measure quality of care.

How to read these rankings

Medicare data is the "tip of the iceberg." A surgeon with 100+ Medicare cases likely performs 300–400+ total surgeries a year. High numbers guarantee experience; low numbers may simply indicate a surgeon sees younger, privately insured patients.

Knee Replacement anatomy illustration
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25 surgeons
1

Alexander Sah

Fremont, CA
Knee Replacement: 513 verified Medicare cases
2

Andrew Yun

Beverly Hills, CA
Knee Replacement: 373 verified Medicare cases
3

John Dearborn

Menlo Park, CA
Knee Replacement: 318 verified Medicare cases
4

Ghassan Boghosian

Rancho Mirage, CA
Knee Replacement: 296 verified Medicare cases
5

Harpreet Bawa

Westlake Village, CA
Knee Replacement: 217 verified Medicare cases
6

John Diana

Napa, CA
Knee Replacement: 207 verified Medicare cases
7

Jay Patel

Orange, CA
Knee Replacement: 199 verified Medicare cases
8

Chad Watts, MD

Reno, NV
Also practices here via Barton Memorial Hospital
Knee Replacement: 189 verified Medicare cases
9

Ryan Moore

Saint Helena, CA
Knee Replacement: 188 verified Medicare cases
10

Thomas Ferro

Arroyo Grande, CA
Knee Replacement: 183 verified Medicare cases
11

Brock Cummings

Paradise, CA
Knee Replacement: 182 verified Medicare cases
12

Matthew Simons

Fresno, CA
Knee Replacement: 182 verified Medicare cases
13

Fadi Saied

Bakersfield, CA
Knee Replacement: 181 verified Medicare cases
14

Travis Scudday

Orange, CA
Knee Replacement: 181 verified Medicare cases
15

Erik Schnaser

Rancho Mirage, CA
Knee Replacement: 177 verified Medicare cases
16

Wendy Wong

Walnut Creek, CA
Knee Replacement: 173 verified Medicare cases
17
Also practices here via Barton Memorial Hospital
Knee Replacement: 172 verified Medicare cases
18

Henry Dunn

Fresno, CA
Knee Replacement: 163 verified Medicare cases
19

Todd Dietrick

Pasadena, CA
Knee Replacement: 159 verified Medicare cases
20

William Gallivan

Santa Barbara, CA
Knee Replacement: 157 verified Medicare cases
21

Jaime Hernandez

Van Nuys, CA
Knee Replacement: 152 verified Medicare cases
22

William Bugbee

La Jolla, CA
Knee Replacement: 148 verified Medicare cases
23

Stephen Howell

Sacramento, CA
Knee Replacement: 147 verified Medicare cases
24

Matthew Miller

Stanford, CA
Knee Replacement: 146 verified Medicare cases
25

Steven Copp

La Jolla, CA
Knee Replacement: 144 verified Medicare cases

Important Disclaimer

Rankings are based solely on Medicare knee replacement procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately 33–37% of all knee replacement procedures performed. Always consult with healthcare providers to make informed decisions about your care.