Pathologists (Anatomic & Clinical) in California
Data updated monthly · Last refresh October 2026
1,553 Anatomic Pathology & Clinical Pathology providers practice in California, including 5 (0%) 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.
1,553providers
5telehealth
Los Angelestop city
Anatomic Pathology & Clinical Pathology by city in California
Choose a city to see providers there.
Anatomic Pathology & Clinical Pathology 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. Benjamin Barrena, M.D.Oceanside, CA · $361 in drug and device payments (2025) ·
(760) 719-3020 Dr. Bonnie Bobzien, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(760) 634-3230 Dr. Daniel Ward, M.D.Oceanside, CA · $42,500 in drug and device payments (2025) ·
(760) 940-7921 Dr. Gabriella Cardoza-favarato, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(760) 634-3230 Dr. Jerry Kao, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(760) 634-3230 Dr. Marcus Contardo, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(760) 634-3230 Dr. Marietya Lauw, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(760) 940-7921 Dr. Richard Wong, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(760) 634-3230 Dr. Victor Lee, M.D.Oceanside, CA · No drug or device payments recorded (2025) ·
(714) 872-3436 Dr. Guillermo Acero, MDOjai, CA · No drug or device payments recorded (2025) ·
(805) 646-1401 Dr. William Wu, M.D., PH.D.Ontario, CA · No drug or device payments recorded (2025) ·
(909) 724-3530 Dr. Aaron Sassoon, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 288-4044 Dr. Ahmad CharifaOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-7890 Dr. Ali Afsari, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 456-6141 Dr. Alicia Calderon Bhambra, D.O.Orange, CA · No drug or device payments recorded (2025) ·
(626) 676-6499 Dr. Bijan Haghighi, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 288-4044 Dr. Fritz Lin, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-2986 Dr. Irina B Knezevic-maramica, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-2986 Dr. Kristine Astvatsaturyan, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 456-8888 Dr. Lisa Kohorn, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 771-8176 Dr. Luis M De La Maza, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-2986 Dr. Maria Del Valle Estopinal, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Mark Lones, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 771-8176 Dr. Michael Schoen, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 288-4044 Dr. Mina SabetOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-7890 Dr. Navid Salahi, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-8888 Dr. Qun Wang, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-6141 Dr. Robert A Edwards, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-2986 Dr. Rooba Wardeh, M.DOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-6141 Dr. Ryan O'connell, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Saman Karimi, MD, MSOrange, CA · No drug or device payments recorded (2025) ·
(949) 824-6574 Dr. Sepideh Bamdad, MDOrange, CA · No drug or device payments recorded (2025) ·
(818) 331-3403 Dr. Shu Yuan Liao, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Sonia Veran-taguibao, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 456-7890 Dr. Thomas LeeOrange, CA · No drug or device payments recorded (2025) ·
(858) 869-4208 Dr. Vishal Chandan, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Gregory Schneringer, M.D.Oroville, CA · $103 in drug and device payments (2025) ·
(530) 532-8320 Dr. Laila Chandy, MDOroville, CA · No drug or device payments recorded (2025) ·
(530) 589-4305 Dr. Michael Merwin, MDOroville, CA · No drug or device payments recorded (2025) ·
(530) 532-8320 Dr. Michael Russell, M.D.Oroville, CA · $116 in drug and device payments (2025) ·
(530) 533-8500 Dr. Joanna Xie, M.D.Oxnard, CA · No drug or device payments recorded (2025) ·
(805) 988-2708 Dr. Usha Garg, MDOxnard, CA · No drug or device payments recorded (2025) ·
(805) 988-2708 Dr. Inpamani Arul, M.D.Palmdale, CA · No drug or device payments recorded (2025) ·
(661) 382-5722 Common questions
How many Anatomic Pathology & Clinical Pathology providers are in California?There are 1,553 Anatomic Pathology & Clinical Pathology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Anatomic Pathology & Clinical Pathology providers in California offer telehealth?Yes. 5 of the 1,553 Anatomic Pathology & Clinical Pathology providers in California (about 0%) report offering telehealth services in CMS data.
Which cities in California have the most Anatomic Pathology & Clinical Pathology providers?Los Angeles (206), Stanford (115), San Diego (107) have the highest concentration of Anatomic Pathology & Clinical Pathology providers in California.
How many Anatomic Pathology & Clinical Pathology providers in California received drug or device company payments?313 of 1,553 Anatomic Pathology & Clinical Pathology providers in California (20%) 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 Pathologists (Anatomic & Clinical) in California work in independent practices or large health systems?Among 840 Pathologists (Anatomic & Clinical) in California enrolled in Medicare, 25% bill through a solo or small practice with fewer than 10 clinicians, 27% through a mid-size group of 10 to 99, and 48% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Pathologists (Anatomic & Clinical) in California work at?According to CMS facility affiliation records, the California hospitals where the most Pathologists (Anatomic & Clinical) hold privileges are Stanford Health Care in Stanford; Stanford Health Care Tri-Valley in Pleasanton; Cedars-Sinai Medical Center in Los Angeles.
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