Hand Surgeons (General Surgery) in California
Data updated monthly · Last refresh October 2026
39 Surgery of the Hand (Surgery) providers practice in California, including 6 (15%) offering telehealth. The largest concentration is in Fresno. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
39providers
6telehealth
Fresnotop city
Surgery of the Hand (Surgery) by city in California
Choose a city to see providers there.
Where Hand Surgeons (General Surgery) in California practice
From CMS Medicare enrollment records covering 26 of the 39 providers listed here (67%). Providers who do not bill Medicare are not included in these figures.
27%solo or small practice (under 10 clinicians)
12%mid-size group (10 to 99)
62%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Hand Surgeons (General Surgery) | All clinicians in group | Main city |
| Southern California Permanente Medical Group | 8 | 11,250 | Fontana |
| Randi A Galli MD Inc. | 3 | 4 | Fresno |
| Cedars-Sinai Medical Care Foundation | 2 | 1,684 | Los Angeles |
| David B. Hammer | 2 | 117 | Templeton |
| Central Coast Orthopedic Medical Group | 2 | 19 | San Luis Obispo |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Hand Surgeons (General Surgery) affiliated |
| Kaweah Health Medical Center | Visalia | Government | 3 of 5 | 4 |
| Adventist Health Hanford | Hanford | Nonprofit | 3 of 5 | 4 |
| Saint Agnes Medical Center | Fresno | Nonprofit | 2 of 5 | 4 |
| Adventist Health Sierra Vista | San Luis Obispo | For-profit | 3 of 5 | 2 |
| French Hospital Medical Center | San Luis Obispo | Nonprofit | 5 of 5 | 2 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Surgery of the Hand (Surgery) providers in California
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Henry Young, MDBellflower, CA · No drug or device payments recorded (2025) ·
(562) 461-3000 Dr. Howard Matsuba, MDBellflower, CA · No drug or device payments recorded (2025) ·
(562) 461-3000 Dr. Michael Feldman, MDBeverly Hills, CA · $43 in drug and device payments (2025) ·
(310) 286-6700 Dr. Ravi Kiran, MDFontana, CA · $183 in drug and device payments (2025) ·
(909) 427-3910 Dr. Sharon Kalina, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Stephen West, MDFontana, CA · $163 in drug and device payments (2025) ·
(909) 427-3910 Dr. Walter Chang, MDFontana, CA · $327 in drug and device payments (2025) ·
(909) 427-3910 Dr. Alexander Majors, M.D. Dr. Ricardo Avena, M.D.Fresno, CA · $141 in drug and device payments (2025) · Telehealth ·
(559) 322-6600 Dr. Ryan Stehr, MDFresno, CA · $725 in drug and device payments (2025) · Telehealth ·
(559) 322-6600 Dr. Kenny Hanna, MDGlendale, CA · No drug or device payments recorded (2025) ·
(818) 240-0006 Dr. Darrel Keyser, MDHayward, CA · No drug or device payments recorded (2025) ·
(510) 259-1201 Dr. Mark Slonim, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 551-2020 Dr. Christopher Katcherian, MDLa Mirada, CA · $557 in drug and device payments (2025) ·
(714) 367-5310 Dr. Emily Perez, M.D.La Mirada, CA · $427 in drug and device payments (2025) ·
(562) 921-0341 Dr. Bradford Edgerton, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 857-2000 Dr. Dong-joon Lee, MDLos Angeles, CA · $355 in drug and device payments (2025) ·
(323) 857-2000 Dr. Gregory Tsushima, M.D.Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 967-1884 Dr. Todd Theman, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 319-1234 Dr. Touraj Touran, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 857-2000 Dr. Andrew Guenthart, M.D.Morgan Hill, CA · No drug or device payments recorded (2025) ·
(408) 825-1333 Dr. Grant Seiden, MDOceanside, CA · $2,189 in drug and device payments (2025) · Telehealth ·
(760) 724-9000 Dr. David Subin, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 939-6502 Dr. Gregory Mack, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 715-9200 Dr. Julie Gilbert, M.D.San Diego, CA · $128 in drug and device payments (2025) ·
(858) 715-9200 Dr. Frederick Abruzzo, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 517-4200 Dr. Robert Markison, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 929-5900 Dr. Samuel Kao, M.D.San Francisco, CA · $174 in drug and device payments (2025) ·
(415) 392-9291 Dr. Nicholas Caggiano, MDSan Luis Obispo, CA · $59 in drug and device payments (2025) ·
(805) 541-4600 Dr. Anisa Yalom, MDSan Marcos, CA · $449 in drug and device payments (2025) ·
(760) 750-1902 Dr. Aileen Shieu, MDSan Mateo, CA · No drug or device payments recorded (2025) ·
(650) 573-2222 Dr. Asher Kupperman, M.D.Santa Barbara, CA · $295 in drug and device payments (2025) · Telehealth ·
(805) 963-9377 Dr. Marie Dusch, MDSanta Maria, CA · $3,157 in drug and device payments (2025) ·
(805) 349-9545 Dr. Eric Larson, M.D.Santa Monica, CA · $733 in drug and device payments (2025) · Telehealth ·
(310) 829-2663 Dr. Huey Tien, M.D.Visalia, CA · $959 in drug and device payments (2025) ·
(559) 731-2009 Dr. Jonathan Liu, M.D.Visalia, CA · $538 in drug and device payments (2025) ·
(559) 731-2009 Common questions
How many Surgery of the Hand (Surgery) providers are in California?There are 39 Surgery of the Hand (Surgery) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Surgery of the Hand (Surgery) providers in California offer telehealth?Yes. 6 of the 39 Surgery of the Hand (Surgery) providers in California (about 15%) report offering telehealth services in CMS data.
Which cities in California have the most Surgery of the Hand (Surgery) providers?Fresno (5), Los Angeles (5), Fontana (4) have the highest concentration of Surgery of the Hand (Surgery) providers in California.
How many Surgery of the Hand (Surgery) providers in California received drug or device company payments?23 of 39 Surgery of the Hand (Surgery) providers in California (59%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Hand Surgeons (General Surgery) in California work in independent practices or large health systems?Among 26 Hand Surgeons (General Surgery) in California enrolled in Medicare, 27% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 62% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hand Surgeons (General Surgery) in California work at?According to CMS facility affiliation records, the California hospitals where the most Hand Surgeons (General Surgery) hold privileges are Kaweah Health Medical Center in Visalia; Adventist Health Hanford in Hanford; Saint Agnes Medical Center in Fresno.
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