Orthopedic Trauma Surgeons in California
Data updated monthly · Last refresh October 2026
113 Orthopaedic Trauma providers practice in California, including 16 (14%) offering telehealth. The largest concentration is in Sacramento. 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.
113providers
16telehealth
Sacramentotop city
Orthopaedic Trauma by city in California
Choose a city to see providers there.
Where Orthopedic Trauma Surgeons in California practice
From CMS Medicare enrollment records covering 87 of the 113 providers listed here (77%). Providers who do not bill Medicare are not included in these figures.
7%solo or small practice (under 10 clinicians)
25%mid-size group (10 to 99)
68%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Orthopedic Trauma Surgeons | All clinicians in group | Main city |
| Regents of the Univ of Ca | 8 | 1,571 | Sacramento |
| Permanente Medical Group Inc. | 7 | 10,928 | Vacaville |
| Central California Faculty Medical Group Inc. | 5 | 256 | Clovis |
| Orthopedic Trauma Surgeons of Northern California | 5 | 16 | Carmichael |
| Southern California Permanente Medical Group | 4 | 11,250 | Anaheim |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Orthopedic Trauma Surgeons affiliated |
| University of California Davis Medical Center | Sacramento | Government | 4 of 5 | 8 |
| Community Regional Medical Center | Fresno | Nonprofit | 1 of 5 | 5 |
| Clovis Community Medical Center | Clovis | Nonprofit | 2 of 5 | 4 |
| Saint Francis Medical Center | Lynwood | Nonprofit | 3 of 5 | 4 |
| Uci Health-Orange | Orange | Government | 4 of 5 | 4 |
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.
Orthopaedic Trauma 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. Neil Sardesai, MDArcadia, CA · $2,251 in drug and device payments (2025) · Telehealth ·
(626) 821-0707 Dr. D'ann Arthur, MDArroyo Grande, CA · No drug or device payments recorded (2025) ·
(805) 473-0700 Dr. Bo HeCarmichael, CA · $620 in drug and device payments (2025) ·
(916) 536-9455 Dr. David IvanovCarmichael, CA · $7,529 in drug and device payments (2025) ·
(916) 536-9455 Dr. Ethan Lea, M.D.Carmichael, CA · $25 in drug and device payments (2025) ·
(916) 536-9455 Dr. Mustafa Alkhouli, DOCarmichael, CA · $3,212 in drug and device payments (2025) ·
(916) 536-9455 Dr. Paul Gregory, M.D.Carmichael, CA · $449 in drug and device payments (2025) ·
(916) 536-9455 Dr. Rafael Neiman, M.D.Carmichael, CA · $12,035 in drug and device payments (2025) ·
(916) 536-9455 Dr. Weiwei Wu, M.D.Carmichael, CA · $710 in drug and device payments (2025) ·
(916) 536-9455 Dr. Steven Zourabian, D.O.Castro Valley, CA · $151 in drug and device payments (2025) ·
(510) 750-1967 Dr. Virginia Lieu, MDCastro Valley, CA · $314 in drug and device payments (2025) · Telehealth ·
(510) 750-1967 Dr. Edgar Vyhmeister, M.D.Chico, CA · No drug or device payments recorded (2025) ·
(530) 332-4470 Dr. Meir Marmor, M.D.Chico, CA · $10,372 in drug and device payments (2025) ·
(530) 332-4470 Dr. Peter Barry, MDChico, CA · No drug or device payments recorded (2025) ·
(530) 332-6021 Dr. Eric Lindvall, D.O.Clovis, CA · $99,782 in drug and device payments (2025) ·
(559) 320-0531 Dr. Juntian Wang, MDClovis, CA · $2,962 in drug and device payments (2025) ·
(559) 320-0531 Dr. Kelsey Bonilla, MDClovis, CA · $1,739 in drug and device payments (2025) ·
(559) 320-0531 Dr. Michael Allen, DOClovis, CA · $5,452 in drug and device payments (2025) ·
(559) 320-0531 Dr. Motasem Refaat, M.D.Clovis, CA · $31,709 in drug and device payments (2025) ·
(559) 320-0531 Dr. Simon Lavi, D.O.Downey, CA · No drug or device payments recorded (2025) ·
(562) 803-0600 Dr. Wesley Tran, MDDowney, CA · No drug or device payments recorded (2025) ·
(562) 657-4125 Dr. Alvin Shieh, MDEscondido, CA · $233 in drug and device payments (2025) ·
(760) 743-4789 Dr. Lorra Sharp, MDEscondido, CA · $36 in drug and device payments (2025) ·
(760) 743-4789 Dr. Kenneth Wilkens, MDFountain Valley, CA · $69 in drug and device payments (2025) ·
(877) 844-0012 Dr. Richard Gellman, MDFrench Camp, CA · $231 in drug and device payments (2025) ·
(503) 805-3267 Dr. Fariborz Naeni, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 459-4004 Dr. Joseph Christensen, MDFresno, CA · $1,509 in drug and device payments (2025) ·
(559) 448-4580 Dr. David Hackley, M.D.La Jolla, CA · $1,000 in drug and device payments (2025) ·
(858) 535-1075 Dr. Robert Tonks, M.D.La Jolla, CA · $283,101 in drug and device payments (2025) ·
(858) 576-9901 Dr. Alon Antebi, DOLancaster, CA · $5,338 in drug and device payments (2025) ·
(661) 726-5005 Dr. Jessica Kingsberg, M.D.Loma Linda, CA · $3,068 in drug and device payments (2025) ·
(909) 558-2808 Dr. Rebecca Rajfer, MDLoma Linda, CA · $1,306 in drug and device payments (2025) ·
(909) 558-6444 Dr. Arthur Kreitenberg, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 659-3400 Dr. Charalampos Zalavras, M.D.Los Angeles, CA · $41 in drug and device payments (2025) ·
(323) 226-7346 Dr. Christopher Lee, MDLos Angeles, CA · $125,442 in drug and device payments (2025) ·
(310) 319-1234 Dr. Devon Jeffcoat, M.D.Los Angeles, CA · $3,648 in drug and device payments (2025) ·
(310) 825-1000 Dr. Eric Johnson, M.D.Los Angeles, CA · $49 in drug and device payments (2025) ·
(310) 206-1169 Dr. Farzin Kabaei, MDLos Angeles, CA · $243 in drug and device payments (2025) · Telehealth ·
(310) 746-5918 Dr. Joseph Patterson, M.D.Los Angeles, CA · $41,444 in drug and device payments (2025) · Telehealth ·
(323) 442-5860 Dr. Joshua Gary, MDLos Angeles, CA · $144,570 in drug and device payments (2025) ·
(323) 442-5860 Dr. Lane Shepherd, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 226-7891 Dr. Mark Fleming, DOLos Angeles, CA · $2,401 in drug and device payments (2025) ·
(301) 956-0583 Dr. Mathieu Angers-goulet, MD. M.ENG.Los Angeles, CA · $101 in drug and device payments (2025) ·
(323) 409-1000 Dr. Sarah Blumenthal, MDLos Angeles, CA · $8,102 in drug and device payments (2025) ·
(323) 442-5860 Dr. Jason Davis, M.D.Lynwood, CA · $1,783 in drug and device payments (2025) ·
(310) 900-4788 Dr. Gary Phipps, M.D.Mission Viejo, CA · No drug or device payments recorded (2025) ·
(949) 364-2154 Dr. Kurt BargerMoreno Valley, CA · $1,912 in drug and device payments (2025) ·
(951) 486-4698 Common questions
How many Orthopaedic Trauma providers are in California?There are 113 Orthopaedic Trauma providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Orthopaedic Trauma providers in California offer telehealth?Yes. 16 of the 113 Orthopaedic Trauma providers in California (about 14%) report offering telehealth services in CMS data.
Which cities in California have the most Orthopaedic Trauma providers?Sacramento (15), Los Angeles (12), San Diego (8) have the highest concentration of Orthopaedic Trauma providers in California.
How many Orthopaedic Trauma providers in California received drug or device company payments?94 of 113 Orthopaedic Trauma providers in California (83%) 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 Orthopedic Trauma Surgeons in California work in independent practices or large health systems?Among 87 Orthopedic Trauma Surgeons in California enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 25% through a mid-size group of 10 to 99, and 68% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Orthopedic Trauma Surgeons in California work at?According to CMS facility affiliation records, the California hospitals where the most Orthopedic Trauma Surgeons hold privileges are University of California Davis Medical Center in Sacramento; Community Regional Medical Center in Fresno; Clovis Community Medical Center in Clovis.
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