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. Kelly Alexander, MDSan Francisco, CA · $520 in drug and device payments (2025) ·
(415) 379-2890 Dr. Kenneth Loh, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Kent GarberSan Francisco, CA · No drug or device payments recorded (2025) ·
(628) 206-8000 Dr. Kerilyn Nobuhara, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-2538 Dr. Kerwin Cruz De La Rosa, MDSan Francisco, CA · $396 in drug and device payments (2025) ·
(415) 353-7687 Dr. Kevin Hiler, MDSan Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 601-4186 Dr. Kiavash Koko, MDSan Francisco, CA · $14 in drug and device payments (2025) ·
(714) 336-0837 Dr. Lamario Williams, MD, PHDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Leo Meller, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Leo Shen, MD, MSCSan Francisco, CA · $2,696 in drug and device payments (2025) ·
(667) 232-1075 Dr. Lisa Kang, MDSan Francisco, CA · $481 in drug and device payments (2025) ·
(415) 296-9302 Dr. Lucas Wachsmuth, MD, PHDSan Francisco, CA · No drug or device payments recorded (2025) ·
(770) 548-9392 Dr. Lucia CalthorpeSan Francisco, CA · $686 in drug and device payments (2025) ·
(415) 476-1239 Dr. Lucy Kornblith, MDSan Francisco, CA · $11,020 in drug and device payments (2025) ·
(415) 476-2273 Dr. Luis David Camacho, MDSan Francisco, CA · $1,295 in drug and device payments (2025) ·
(415) 476-1239 Dr. Lygia Stewart, M.D.San Francisco, CA · $177 in drug and device payments (2025) ·
(415) 221-4810 Dr. Madhulika Varma, MDSan Francisco, CA · $11,188 in drug and device payments (2025) · Telehealth ·
(415) 885-3606 Dr. Margaret Butchy, MDSan Francisco, CA · $1,217 in drug and device payments (2025) ·
(415) 353-2161 Dr. Mark Ratcliffe, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1606 Dr. Marlene Grenon, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2357 Dr. Mary Margaret Knudson, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 206-4634 Dr. Matthew Callaghan, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(917) 207-1344 Dr. Matthew Skovgard, MDSan Francisco, CA · $1,392 in drug and device payments (2025) · Telehealth ·
(415) 353-8890 Dr. Megan Casey, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Melissa Coleman, M.D.San Francisco, CA · $1,219 in drug and device payments (2025) · Telehealth ·
(628) 206-8000 Dr. Michael Alvarado, M.D.San Francisco, CA · $30,927 in drug and device payments (2025) · Telehealth ·
(415) 476-1236 Dr. Michael Harrison, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-2538 Dr. Michael Zobel, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(310) 291-7611 Dr. Michelle Li, M.D.San Francisco, CA · $241 in drug and device payments (2025) · Telehealth ·
(415) 668-0411 Dr. Mignote Yilma, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-1551 Dr. Muta Abiff, MD, PHDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2161 Dr. Nancy Ascher, MDSan Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 353-1888 Dr. Natalya GonzalezSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Nawal YessufSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Nelson Alphonso, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2813 Dr. Nhan Nguyen, M.D.San Francisco, CA · $20 in drug and device payments (2025) ·
(415) 810-4179 Dr. Nichole Starr, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 Dr. Nima Grissom, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 292-8999 Dr. Niti Shahi, M.D.San Francisco, CA · $3,520 in drug and device payments (2025) · Telehealth ·
(415) 379-2900 Dr. Pablo Leon, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-9238 Dr. Pamela Lewis, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 668-8060 Dr. Paula Porras Rodriguez, MDSan Francisco, CA · $194 in drug and device payments (2025) ·
(415) 476-1236 Dr. Paul Cirangle, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 331-8390 Dr. Pawan Chansaenroj, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2161 Dr. Peter Richards, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 221-0736 Dr. Peter Stock, MDSan Francisco, CA · $12,504 in drug and device payments (2025) · Telehealth ·
(415) 353-1551 Dr. Phoebe Miller, MDSan Francisco, CA · $350 in drug and device payments (2025) ·
(415) 476-1239 Dr. Pierre Theodore, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-9888 Dr. Po-yi LiSan Francisco, CA · No drug or device payments recorded (2025) ·
(476) 123-9415 Dr. Pujita MunnangiSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-1239 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
Related
