General Surgeons in California
Data updated monthly · Last refresh October 2026
3,111 Surgery providers practice in California, including 468 (15%) offering telehealth. The largest concentration is in Los Angeles. 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.
3,111providers
468telehealth
Los Angelestop city
Surgery by city in California
Choose a city to see providers there.
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. Richard Yukl, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 796-6472 Dr. Riley Johnson, MDLoma Linda, CA · $1,135 in drug and device payments (2025) ·
(909) 651-9863 Dr. Ryan Hawks, M.D.Loma Linda, CA · $271 in drug and device payments (2025) ·
(909) 558-4289 Dr. Ryan Wilson, DPMLoma Linda, CA · No drug or device payments recorded (2025) ·
(800) 741-8387 Dr. Sharon Lum, M.D.Loma Linda, CA · $874 in drug and device payments (2025) · Telehealth ·
(909) 558-2822 Dr. Sherif Aly, M.D.Loma Linda, CA · $13,161 in drug and device payments (2025) ·
(909) 558-2822 Dr. Shintaro Chiba, M.D.Loma Linda, CA · $642 in drug and device payments (2025) ·
(347) 446-4228 Dr. Thomas O'callaghan, MDLoma Linda, CA · No drug or device payments recorded (2025) ·
(909) 558-2822 Dr. Wing Sze Yung, M.D.Loma Linda, CA · $873 in drug and device payments (2025) ·
(909) 558-4286 Dr. Bandhit Sinkaset, M.D.Lompoc, CA · No drug or device payments recorded (2025) ·
(805) 736-1253 Dr. Christopher Taglia, M.D.Lompoc, CA · $1,737 in drug and device payments (2025) ·
(805) 737-8700 Dr. Peter Davis, MDLompoc, CA · No drug or device payments recorded (2025) ·
(805) 736-1253 Dr. Alexis Plasencia, M.D.Long Beach, CA · $4,220 in drug and device payments (2025) ·
(562) 826-8000 Dr. Ayman Neoman, M.D.,Long Beach, CA · $885 in drug and device payments (2025) ·
(562) 427-7275 Dr. Brian Acker, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 595-4444 Dr. Brian West, MDLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 426-7111 Dr. Gergis Ghobrial, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 426-0147 Dr. James Murray, MDLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 432-9911 Dr. James Tatum, M.D.Long Beach, CA · $1,542 in drug and device payments (2025) ·
(562) 432-9911 Dr. Jeffrey Islas, MDLong Beach, CA · $135 in drug and device payments (2025) ·
(562) 424-0421 Dr. Jeffrey Quigley, D.O.Long Beach, CA · $779 in drug and device payments (2025) ·
(562) 432-7175 Dr. Kent Azaren, MDLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 424-0421 Dr. Leonard Lovitch, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 818-5848 Dr. Leslie Edrich, MDLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 933-3136 Dr. Malgorzata Stanczyk, M.D.Long Beach, CA · $493 in drug and device payments (2025) ·
(562) 491-7935 Dr. Nolan Desa, MDLong Beach, CA · $31,561 in drug and device payments (2025) ·
(562) 494-6700 Dr. Paul Chugay, M.D.Long Beach, CA · $84 in drug and device payments (2025) ·
(562) 595-8507 Dr. Rebecca Alleyne, M.DLong Beach, CA · $132 in drug and device payments (2025) ·
(562) 491-4879 Dr. Ronald Wolf, M.D.Long Beach, CA · $8,251 in drug and device payments (2025) ·
(562) 933-1877 Dr. Stanley Goldberg, M.DLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 435-5511 Dr. Tchaka Shepherd, MDLong Beach, CA · $25 in drug and device payments (2025) ·
(562) 427-1322 Dr. Thai Wong, D.O.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 491-4879 Dr. Viken Konyalian, MDLong Beach, CA · $678 in drug and device payments (2025) ·
(714) 615-1870 Dr. Viktor Gabriel, M.D.Long Beach, CA · $118 in drug and device payments (2025) ·
(562) 826-8000 Dr. Walter Chua, M.D.Long Beach, CA · $14 in drug and device payments (2025) ·
(562) 826-8000 Dr. Ali Fouladi, M.D.Los Alamitos, CA · $60 in drug and device payments (2025) ·
(562) 598-6700 Dr. Allen Anae, MDLos Alamitos, CA · No drug or device payments recorded (2025) ·
(562) 596-6736 Dr. Dena Amr, MDLos Alamitos, CA · $3,387 in drug and device payments (2025) ·
(562) 596-6736 Dr. Denise Joseph-brown, M.D.Los Alamitos, CA · $136 in drug and device payments (2025) ·
(562) 430-2103 Dr. Eugene Kahn, MDLos Alamitos, CA · $26 in drug and device payments (2025) ·
(657) 224-9209 Dr. Grant Sarkisyan, M.D.Los Alamitos, CA · $11,503 in drug and device payments (2025) ·
(562) 596-6736 Dr. Jessica Rayhanabad, M.D.Los Alamitos, CA · $634 in drug and device payments (2025) ·
(562) 206-1312 Dr. Ronald Holness, MDLos Alamitos, CA · No drug or device payments recorded (2025) ·
(562) 598-2439 Dr. Paul Dagum, MDLos Altos Hills, CA · No drug or device payments recorded (2025) ·
(415) 378-5456 Dr. Abdollah Gilani, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 202-1133 Dr. Abigail Zamora, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-9046 Dr. Adel Zaki, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2090 Dr. Adrian Dobrowolsky, M.D.Los Angeles, CA · $714 in drug and device payments (2025) · Telehealth ·
(323) 442-9062 Dr. Alagappan Annamalai, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 423-2975 Common questions
How many Surgery providers are in California?There are 3,111 Surgery providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Surgery providers in California offer telehealth?Yes. 468 of the 3,111 Surgery providers in California (about 15%) report offering telehealth services in CMS data.
Which cities in California have the most Surgery providers?Los Angeles (260), San Francisco (205), San Diego (158) have the highest concentration of Surgery providers in California.
How many Surgery providers in California received drug or device company payments?1,519 of 3,111 Surgery providers in California (49%) 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 General Surgeons in California work in independent practices or large health systems?Among 1,794 General Surgeons in California enrolled in Medicare, 24% bill through a solo or small practice with fewer than 10 clinicians, 14% 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 General Surgeons in California work at?According to CMS facility affiliation records, the California hospitals where the most General Surgeons hold privileges are Stanford Health Care in Stanford; UCSF Medical Center in San Francisco; Ronald Reagan UCLA Medical Center in Los Angeles.
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