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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 in Los Angeles260 providers
Surgery in San Francisco205 providers
Surgery in San Diego158 providers
Surgery in Sacramento106 providers
Surgery in Fresno67 providers
Surgery in Palo Alto64 providers
Surgery in Oakland60 providers
Surgery in Orange59 providers
Surgery in Riverside53 providers
Surgery in Loma Linda52 providers
Surgery in San Jose50 providers
Surgery in Torrance49 providers
Surgery in Stanford46 providers
Surgery in La Jolla43 providers
Surgery in Bakersfield40 providers
Surgery in Modesto35 providers
Surgery in Santa Monica35 providers
Surgery in Roseville35 providers
Surgery in Walnut Creek33 providers
Surgery in Newport Beach32 providers
Surgery in Beverly Hills31 providers
Surgery in Anaheim30 providers
Surgery in Pasadena27 providers
Surgery in West Hollywood24 providers

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. Daniel Igwe, MD
Hemet, CA · No drug or device payments recorded (2025) · (951) 766-0374
Dr. Hege Johnsen, MD
Hemet, CA · $842 in drug and device payments (2025) · (951) 766-1222
Dr. Ilia Gur, M.D.
Hemet, CA · $18 in drug and device payments (2025) · (519) 766-0374
Dr. Ralph Dreier
Hemet, CA · No drug or device payments recorded (2025) · (951) 658-3258
Dr. Surendra Sharma, MD
Hemet, CA · No drug or device payments recorded (2025) · (951) 652-3300
Dr. Richard Kangah, MD
Highland, CA · $372 in drug and device payments (2025) · (909) 864-1006
Dr. Bunry Pin, D.O.
Hollister, CA · $3,546 in drug and device payments (2025) · (831) 637-5711
Dr. Enis Martinez, MD
Hollister, CA · No drug or device payments recorded (2025) · (831) 637-1655
Dr. Alexander Marmureanu, MD
Hollywood, CA · $107 in drug and device payments (2025) · (310) 208-4400
Dr. Samuel Reyes, M.D.
Huntington Beach, CA · No drug or device payments recorded (2025) · (714) 377-0994
Dr. Yasser Salem, MD
Huntington Beach, CA · $333 in drug and device payments (2025) · Telehealth · (714) 545-5200
Dr. Duvan Mejia, MD
Huntington Park, CA · No drug or device payments recorded (2025) · (323) 582-1780
Dr. Rene Umali, M.D.
Igo, CA · No drug or device payments recorded (2025) · (530) 227-1981
Dr. Mark Kiselow, M.D.
Indian Wells, CA · No drug or device payments recorded (2025) · (760) 340-1273
Dr. Joseph Doyle, M.D.
Indio, CA · No drug or device payments recorded (2025) · (760) 775-1395
Dr. Bruce Daugherty, MD
Inglewood, CA · No drug or device payments recorded (2025) · (310) 675-9285
Dr. Craig Smith, M.D.
Inglewood, CA · $96 in drug and device payments (2025) · (310) 673-4900
Dr. James Liu, M.D.
Inglewood, CA · No drug or device payments recorded (2025) · (310) 673-7050
Dr. Jamshid Shariati, MD
Inglewood, CA · No drug or device payments recorded (2025) · (310) 215-3555
Dr. Jehan Mir, MD
Inglewood, CA · No drug or device payments recorded (2025) · (310) 677-6101
Dr. Mohammad Sajedi, MD
Inglewood, CA · No drug or device payments recorded (2025) · (310) 672-9000
Dr. Regina Offodile, MD
Inglewood, CA · No drug or device payments recorded (2025) · (310) 672-2099
Dr. Robert Shorr, M.D.
Inglewood, CA · $20 in drug and device payments (2025) · (310) 673-4900
Dr. Alex Fazeli, M.D., PH.D.
Irvine, CA · $159 in drug and device payments (2025) · (310) 570-8175
Dr. Alp Gurkan, MD
Irvine, CA · No drug or device payments recorded (2025) · (949) 490-2060
Dr. Christopher Washington, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (714) 387-3430
Dr. Harish Chawla, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (714) 389-1555
Dr. Heather Moore, RNFA
Irvine, CA · No drug or device payments recorded (2025) · (949) 727-5010
Dr. Nahid Hamoui, MD
Irvine, CA · $21 in drug and device payments (2025) · (949) 336-8761
Dr. Robert Beltran, M.D., M.B.A.
Irvine, CA · No drug or device payments recorded (2025) · (949) 923-3200
Dr. Adam Delgado, DO
Jackson, CA · $778 in drug and device payments (2025) · (209) 257-7615
Dr. David Melniczek, MD
Jackson, CA · $216 in drug and device payments (2025) · (209) 256-8200
Dr. John Ellyson, MD
Jackson, CA · No drug or device payments recorded (2025) · (209) 223-2474
Dr. Maria House, M.D.
Jackson, CA · $1,000 in drug and device payments (2025) · (209) 217-8416
Dr. Mohammed Siddiqui, MD FACS
Jackson, CA · $23 in drug and device payments (2025) · (209) 257-0301
Dr. Jai Ghatnekar, MD
Joshua Tree, CA · No drug or device payments recorded (2025) · (760) 366-6128
Dr. Renato Guzman, MD
Joshua Tree, CA · No drug or device payments recorded (2025) · (760) 366-6128
Dr. Surin Srikureja, DO
Kelseyville, CA · No drug or device payments recorded (2025) · (701) 520-8555
Dr. Gene Reynolds, M.D.
King City, CA · No drug or device payments recorded (2025) · (831) 385-5471
Dr. Gilbert Flores, M.D.
King City, CA · No drug or device payments recorded (2025) · (831) 385-5471
Dr. Jonathan Pace, M.D.
King City, CA · No drug or device payments recorded (2025) · (831) 385-5471
Dr. Stewart Gleischman, MD
La, CA · No drug or device payments recorded (2025) · (310) 657-6993
Dr. Jose Perez, M.D.
La Canada, CA · No drug or device payments recorded (2025) · (818) 900-2063
Dr. Christopher Kang, M.D.
Laguna Beach, CA · $145 in drug and device payments (2025) · (310) 954-7169
Dr. Michael Coccia, MD
Laguna Beach, CA · $50 in drug and device payments (2025) · (949) 499-4565
Dr. Steven Chang, MD
Laguna Beach, CA · $253 in drug and device payments (2025) · (949) 499-4565
Dr. Akil Simon, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 215-5055
Dr. Amy Bremner, MD
Laguna Hills, CA · $126 in drug and device payments (2025) · Telehealth · (657) 241-9660
Dr. Anna Houterman, MD
Laguna Hills, CA · $108 in drug and device payments (2025) · (949) 598-1701
Dr. Blake Ashley, M.D.
Laguna Hills, CA · $316 in drug and device payments (2025) · (949) 457-7900

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.

Surgery in all 50 states Search all 3,111 in the directory Ask Zach for help choosing

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Surgery in California? Get featured.