Gynecologic Oncologists in California
Data updated monthly · Last refresh October 2026
178 Gynecologic Oncology providers practice in California, including 91 (51%) 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.
178providers
91telehealth
Sacramentotop city
Gynecologic Oncology by city in California
Choose a city to see providers there.
Gynecologic Oncology 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. Maria Creselda De Leon, MDSanta Clarita, CA · $36 in drug and device payments (2025) · Telehealth ·
(661) 799-1999 Dr. Jonathan Tammela, MDSanta Maria, CA · $23 in drug and device payments (2025) ·
(805) 346-3456 Dr. Hyo Kyung Park, M.D.Santa Monica, CA · $339 in drug and device payments (2025) · Telehealth ·
(310) 829-8031 Dr. Steven Vasilev, MDSanta Monica, CA · No drug or device payments recorded (2025) ·
(310) 829-8402 Dr. Amer Karam, MDStanford, CA · $21,894 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Babak Litkouhi, MDStanford, CA · $3,400 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Emily Mcclung, MDStanford, CA · $4 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Jonathan Berek, MDStanford, CA · $4,040 in drug and device payments (2025) ·
(650) 723-4000 Dr. Kristin Bixel, MDStanford, CA · $18 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Oliver Dorigo, MD, PHDStanford, CA · $1,684 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Stephanie Chow, MDStanford, CA · $346 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Talayeh Ghezelayagh, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Christine Holschneider, MDSylmar, CA · No drug or device payments recorded (2025) ·
(818) 364-3222 Dr. Annie Yessaian, M.D.Tarzana, CA · $31 in drug and device payments (2025) · Telehealth ·
(818) 342-6011 Dr. Fikret Atamdede, M.D.Torrance, CA · $596 in drug and device payments (2025) · Telehealth ·
(310) 375-8446 Dr. Ramin Mirhashemi, M.D.Torrance, CA · $2,682 in drug and device payments (2025) · Telehealth ·
(310) 375-8446 Dr. Susan Park, MD MPHTorrance, CA · No drug or device payments recorded (2025) · Telehealth ·
(424) 306-4061 Dr. Mehdi Moslemi-kebria, MDUpland, CA · $9,210 in drug and device payments (2025) · Telehealth ·
(909) 949-2242 Dr. Anne Rodriguez, M.D.Ventura, CA · $4,242 in drug and device payments (2025) · Telehealth ·
(805) 642-4830 Dr. Deepa Maheswari Narasimhulu, MDVentura, CA · $250 in drug and device payments (2025) · Telehealth ·
(805) 642-4830 Dr. William Hogan, M.D.Ventura, CA · No drug or device payments recorded (2025) ·
(805) 642-4830 Dr. Betty Suh-burgmann, MDWalnut Creek, CA · $7,000 in drug and device payments (2025) ·
(925) 295-4000 Dr. Corinne Jansen, MDWalnut Creek, CA · $295 in drug and device payments (2025) ·
(925) 393-0033 Dr. Daniel Paik, MDWalnut Creek, CA · $202 in drug and device payments (2025) · Telehealth ·
(925) 627-3440 Dr. Dimitry Lerner, M.D.Walnut Creek, CA · $8,044 in drug and device payments (2025) · Telehealth ·
(925) 393-0033 Dr. Arthur-quan Tran, MDWest Hollywood, CA · No drug or device payments recorded (2025) ·
(310) 423-1036 Dr. Kenneth Kim, M.D.West Hollywood, CA · No drug or device payments recorded (2025) ·
(310) 423-5800 Dr. Samuel Im, M.D.Whittier, CA · $243 in drug and device payments (2025) ·
(562) 900-1012 Common questions
How many Gynecologic Oncology providers are in California?There are 178 Gynecologic Oncology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Gynecologic Oncology providers in California offer telehealth?Yes. 91 of the 178 Gynecologic Oncology providers in California (about 51%) report offering telehealth services in CMS data.
Which cities in California have the most Gynecologic Oncology providers?Sacramento (22), Los Angeles (20), San Francisco (10) have the highest concentration of Gynecologic Oncology providers in California.
How many Gynecologic Oncology providers in California received drug or device company payments?117 of 178 Gynecologic Oncology providers in California (66%) 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 Gynecologic Oncologists in California work in independent practices or large health systems?Among 121 Gynecologic Oncologists in California enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 81% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Gynecologic Oncologists in California work at?According to CMS facility affiliation records, the California hospitals where the most Gynecologic Oncologists hold privileges are UCSF Medical Center in San Francisco; Stanford Health Care in Stanford; Los Angeles General Medical Center in Los Angeles.
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